Showing posts with label congestion pricing. Show all posts
Showing posts with label congestion pricing. Show all posts

Tuesday, June 18, 2024

The symbolism of congestion pricing

Congestion pricing readers on the FDR Drive at 60th Street

Since Governor Hochul announced her "indefinite pause" on congestion pricing on June 7, I've been one of several people who pointed out that it would have improved almost everyone's lives. The people who currently walk, bike or ride transit would have a lot less cars to deal with, and a lot more funding for the transportation modes they use. The people who would pay the toll would spend a lot less time stuck in traffic than they do now. The people who wouldn't pay the toll would have a better commute by transit than their crappy current driving commute. And people who don't commute would benefit from cleaner air, less noise, less carnage and less wasted space.

So it's kind of puzzling why there's a group of people who really hate the idea of congestion pricing. And they're not all just upset about losing their discounted trip at taxpayer expense. Some of them are intensely, viscerally offended by the very idea, and desperate to stop it at almost any cost.

The people who are intensely offended are completely immune to reason on this. You and I may know that their business would save money by not having its workers stuck in traffic. We may know that the subway is way less violent than the highways. We may know that everyone's long term prosperity will be much greater if we're not wasting money, space and fossil fuels transporting three-ton easy chairs around with every individual. But they won't hear it.

They are intensely offended by the idea that they should pay extra every time they want to bring a large, heavy piece of machinery with them into Manhattan, just as they are offended by the idea that they should pay to leave that vehicle on the street overnight, that they should not be allowed to leave the vehicle in the middle of the street blocking a bus, or on the sidewalk, that sometimes a bus full of people or a person on a bicycle might be moving faster than them.

Why are they so offended? Because they were taught for years that cars are a mechanism for prosperity. Not only that by buying a car they raised themselves up in the social hierarchy, but that our government, and in fact all of our society, is aimed at helping them to prosper through their cars.

For these drivers, the government raises them up through free parking, or at least cheap parking. Powerful government figures give them free parking on holidays, free parking on residential streets, in the suburbs, at their country houses. These patrons do what they can to keep the tolls cheap, gas prices cheap, and parking cheap when it isn't free. They provide parking placards to hardworking civil servants and to people who do favors for them. And they look the other way when drivers double park, park on the sidewalk, go faster than the speed limit, and maybe even kill somebody once in a while. Because these drivers were just trying to take care of themselves and their families.

This free parking, cheap parking, cheap gas, cheap tolls, free sidewalk parking, and the occasional free killing are all aimed at lifting people up. Not lifting everyone up, but just the people who deserve it. And they know who deserves it because those people have bought into the system by buying a car and busting their asses to make the car payments, insurance payments, repair bills, gas, tolls, tickets.

Of course that's all bullshit. Of all the possible ways you could lift people up and generate prosperity, subsidizing driving is one of the most dangerous and destructive, and in a lot of ways it's just fucking mean. The fact that someone owns a car doesn't make them any more deserving of anything. The way cars enable people to bully other people is hugely problematic. See the entire rest of this blog for details.

And this is why a certain group of people is so deeply offended by congestion pricing. It calls them on this bullshit. Like bus lanes, bike lanes, open streets and pedestrian plazas, congestion pricing says that there is nothing about owning and using a car that makes a person any more deserving; in fact, they're causing damage, destruction and death everywhere they pilot the thing. And so many of them have built their lives around owning a car as their ticket to prosperity.

Congestion pricing offends drivers the same way that tearing down Confederate statues offends my cousins in Texas. The same way that providing decent housing and food for people who just got here from South America offends some people. Congestion pricing is an official recognition by the government of the State of New York that driving is an antisocial activity. And that's why it would be such a victory for humanity, decency and compassion if it happens, and such a setback if it doesn't.

Sunday, November 29, 2015

Could Lyft and Uber reduce congestion?

Charles Komanoff has created an open-source multimodal transportation model for New York City, available for free download as an Excel spreadsheet. In July, after learning that there were almost two thousand Uber cars on the streets of Manhattan every weekday, Komanoff used his Balanced Transportation Analyzer to estimate that these cars had slowed traffic by seven percent.


A month later, some new information came out: taxis were sitting idle on the streets of Greenpoint. Drivers had found that they could make more money with Uber and Lyft than with the medallion giving them the right to pick up street-hailing passengers in Manhattan.

This suggests that instead of adding to the cabs in Manhattan, many of the Uber and Lyft cars have been replacing them. This is confirmed by an analysis conducted by Reuben Fischer-Baum and Carl Bialik for Five Thirty Eight. The net increase in congestion may be a lot lower than Komanoff estimated, especially since, as he mentioned, cabs hailed with apps don't have to cruise the streets.

I emailed Komanoff, and he was aware of this new data. "I revised my approach in mid-summer. I think the main change was a higher assumed displacement of yellows, which resulted in a lower impact of Ubers. The impact of 20,000 Ubers (not all of which are in the CBD all the time, obviously) is now a 4.3% slowdown in CBD speeds," he wrote.

To me this suggests that there is a limit to the number of taxis that we can add in Manhattan's Central Business District ("the CBD"). If vehicle speeds slow below a certain point, some passengers will decide that it's not worth their time and money, and either take the subway, go at a different time, or go somewhere else. The "surge pricing" (in fact, a form of congestion pricing, which Komanoff has advocated for all vehicles for decades) practiced by Uber and Lyft probably also serves as an extra disincentive.

If enough passengers make this decision, the driver doesn't get the hail. Because the fare they get for sitting in traffic is different from what they get while moving, they may decide that even if they pick someone up it won't be worth their time. And in fact, electronic hailing and traffic monitoring allows drivers to read and respond to these signals more quickly. A driver can now get a sense of the number of hails before they even enter Manhattan, and choose to go elsewhere.

The Economist's analysis of trip data suggests that these services are not adding very much to congestion: "During the two years to June 2015, Uber’s pickups in the CBD rose from an estimated 175,000 to 1.8m [per month], while yellow cabs’ hails in the area fell by around 1.4m. This implies that where Uber and yellow cabs compete most directly, just 13% of the growth in Uber rides has added to prior demand. The remaining 87% has replaced trips that would otherwise have gone to taxis."

It's even possible that electronically hailed cars could eventually help reduce congestion, and provide an alternative to subways and buses. Of course, not if they're single-passenger taxi trips: as I said recently, if Uber and Lyft simply take a vehicle with one person who's both driver and passenger and replaces it with a vehicle with one driver and one passenger, it may lead to a reduction in carnage and an improvement in the way people relate to each other, but there would be no net change in the number of passengers per car, and thus no practical change in efficiency or pollution.

There is one major difference in shifting from single-occupant vehicles to taxis: ownership of the vehicle passes from the individual (usually the driver/passenger), to the taxi driver or fleet owner. This means that control of the other passenger seats passes from the driver/passenger to the taxi service. As many people have observed, when combined with real-time schedule coordination, this makes it much easier to add passengers.

Uber offers an electronic carpooling service called Uberpool, and Lyft offers one called Lyftline. With these services, instead of carrying a single passenger, a Prius sedan can carry up to three comfortably, and an Escalade can carry five. The companies claim that they are very popular: Uber said that "almost 50,000 New Yorkers" used Uberpool in the last week of October. In April, Lyft said that Lyftlines made up thirty percent of its rides in New York. Unfortunately, both of those numbers are fairly useless for our purposes because they don't say how many of those rides were in Manhattan during business hours.

Still, each of those shared trips represents one of several possibilities. One is that the person took Uberpool or Lyftline instead of driving their own car or taking a separate cab. If these services do take, say, a thousand cars off the streets of Manhattan every rush hour this way - cars that are not replaced by other taxis, personal cars, or even trucks - that's a very good thing. Komanoff's model indicates that if we could get 32,000 less cars going into Manhattan every day, it would increase speeds by 3.2%.

It may be that the possible congestion limit I mentioned above is actually an optimal congestion point, and every car taken off the road by these carpool services will be replaced with another car, taxi or truck until it reaches that point. In that case, the only way to free up space on the roads would be to increase the price - tolls on the bridges, raise on-street parking rates, reduce government employee parking placards or implement a taxi congestion fee. In the meantime, at least this means more people that will be able to get into Manhattan.

Another possibility is that the person took Uberpool or Lyftline instead of taking the subway or bus, leaving space for someone else. A number of transit advocates have gotten all doom and gloom about this, saying that these services will "poach riders" from the public transit agencies, depriving them of fare revenue, but here in New York today the system is at capacity. All rush hour, people are watching full buses and subways pass them by. Poaching is simply not an issue, and will not be for the foreseeable future.

As I've written before, I do not believe that electronically hailed taxis can be a satisfactory replacement for fixed-route transit. I do believe that they can help us deal with our current capacity crunch, and potentially ease the way to eliminating personal cars. I've got more to say about this in the future.

Sunday, May 11, 2014

The return of the mixed-traffic streetcar

I wrote before that mixed-traffic streetcars no longer make sense in this country, because whenever a corridor has enough walkable destinations to support the service, it attracts too many private cars. Those cars slow down the streetcar so much that it no longer provides enough value to draw passengers. There is a way to make them work, however: drive the cars away.


Drivers are currently drawn to Manhattan under today's heavy subsidy levels, but if the subsidies are decreased it will attract less drivers. Cordon pricing is the most obvious way to do this, but it could also be accomplished with high enough prices on parking or fuel.

Imagine Manhattan one day in the Future. As it did a century ago, a streetcar again connects Greenwich Village with Soho, Chinatown, Tribeca and the Financial District along Wooster Street and University Place. It runs smoothly and quickly, even at the height of rush hour or the hottest club time on Saturday night. The reason is that, thanks a combination of bridge tolls, parking pricing and ten dollar a gallon gas, nobody wants to be driving. There are cars on the streets, but never enough to slow down the trolley.

That's the kind of environment where a mixed-traffic streetcar can work. Without something to keep private cars out of the way, streetcars are just buses with a smoother ride.

Sunday, March 9, 2014

Getting into Manhattan

I've got a whole bunch of ideas for subway and bus expansions in the boroughs, commuter rail and bus expansions in the suburbs, and even intercity rail and bus connections. They all wash up against one big problem: the capacity of crossings into and out of Manhattan is almost maxed out at peak commuting times, the few big expansions in the works are proceeding slowly, and there doesn't seem to be political will to do much more.


Of the subways that cross the East River and the PATH trains that cross the Hudson, almost all the bridges and tunnels are packed with trains at rush hour, and those trains packed with passengers. The one exception is the Williamsburg Bridge, which is constrained by technical challenges, by the depopulation of South Side Williamsburg, Bushwick and East New York, by zoning restrictions on building, and by the fact that the J and Z trains only go to lower Manhattan. Since the MTA rerouted the M train to Midtown, ridership has gone up, and so have rents in Ridgewood, but that is the only line that is not at full capacity.

The only new subway crossing that has been given serious consideration recently, the Subway to Secaucus, has been stuck on a shelf somewhere.

MTA Capital Construction has installed an improved signalling system (CBTC) on the L line, which has allowed them to run more trains through the Fourteenth Street Tunnel. This capacity has been rapidly filled by an increase in ridership. They are rolling out CBTC to other lines, as the Port Authority is doing with the PATH trains, but funding limitations have stretched the rollout over years. As with the L train, the increased capacity is not expected to be enough to handle an additional branch on any line, only to allow neighborhoods near the existing branches to add population and to give some breathing room to passengers.

With commuter rail, the constraints are the platforms at Penn Station and the Park Avenue Tunnel. Alon Levy pointed out years ago that the constraints at Penn Station are not technical, but due to the three government-run commuter rail agencies' insistence on terminating all trains there, and our politicians' inability to force them to implement through-running arrangements.

For years the MTA has been pouring billions of dollars into East Side Access, but that will not be finished until 2023 at the earliest. The ARC Tunnel from New Jersey and its successor, the Gateway Tunnel, are being blocked by Governor Christie, who has used ARC funding to pay for road expansions.

Bus capacity into Manhattan is similarly constrained. Buses crossing from New Jersey through the Lincoln Tunnel can terminate at the Port Authority Bus Terminal, but that is also full. Proposals to build garages with public funds have faltered, and no private company seems interested in building a garage or terminal. The Port Authority is renovating the George Washington Bridge terminal, but that is too far north, and connects to a downtown A train that is also very crowded.

Any buses that can't fit into the Port Authority use city streets to pick up and drop off, as do buses from the other crossings. A backlash from NIMBYs, mostly drivers and business owners but aided by misguided pedestrian advocates, has put a lid on any expansion of curbside bus access.

As with commuter trains, there is a potential for through-running with buses along 34th or 42nd streets or Church Street that could relieve some of these constraints, but the bus operators have shown little interest, and political leaders have been too busy pandering to the backlash.

One reason bus operators may be uninterested in through-running or building terminals or garages is that there are also capacity constraints for buses on the bridges and tunnels. Anyone who's tried to take the Q32 into Manhattan in the morning knows what happens to bus travel times when a bridge is free for any vehicle. Passengers on the inbound QM5 express bus know that things run a little smoother when there is a toll and a bus lane, and people who have ridden the Red and Tan number 20 know that congestion pricing makes it even better. But even those passengers say that the bus lanes are too short, and those crossings with lanes and tolls are at capacity as well.

So that's the dismal state of getting commuters to Manhattan. What should we do about it? I'll talk about that in future posts.

Monday, December 30, 2013

Expensive commutes through the XBL

The transit commuting tax benefit parity is expiring tomorrow, and Tri-State has a list of 24 "transit systems" where a monthly ticket can cost more than $130. In addition to the publicly owned transit operators they name, there are several private ones here in the New York area:


Company2012 tripsCommuter ticketMost expensiveMax costLeast expensiveMin cost
New York Trailways528,55010-trip x4Kingston$ 765.00New Paltz$ 660.00
Martz1,004,65144-tripWilkes-Barre637.25Panther Valley514.00
Carl R. Bieber Tourways (PDF)Unreported40-tripKutztown617.00Hellertown509.00
Trans-Bridge Lines1,237,30940-tripAllentown552.00MetLife404.50
Lakeland Bus1,613,36810-trip x4Andover467.60Montville340.00
Short Line (Stagecoach)4,314,78440-tripMonticello460.90Paramus225.95
Academy Lines4,121,596MonthlyForked River445.00Sayreville305.00
Suburban Transit (Stagecoach)2,810,885MonthlyPlainsboro435.00East Brunswick320.00
Community Coach (Stagecoach)587,93510-trip x4Morristown338.40Meadowlands200.00
Red and Tan Lines (Stagecoach)2,908,27420-trip x2Tomkins Cove286.20North Bergen115.60
DeCamp1,977,04140-tripWest Caldwell267.00Rutherford174.00

While many of these are owned by Stagecoach, with profits presumably flowing to Scotland, some of the other companies like DeCamp and New York Trailways are locally owned. Even if the owners take some personal profit from the transit benefit, they have been spending a lot of it here in the Tri-State area.

It's important to point out here that a large number of these "commuters" work from home at least a day or two a week. Many are small business owners, including artists and craftspeople, who travel into the city a few days a week to sell their goods.

Will these people still spend over $400 a month to sit on a bus on the Garden State Parkway or Route 80 for an hour and a half each way? Probably. They get to live in the Catskills or on the Jersey Shore and work in Manhattan.

And yes, the XBL and congestion pricing make it more worthwhile for them to sit on a bus than to drive in to the city.

Friday, September 6, 2013

Car dependence is overdetermined

I came across a word that I think helped me to put my finger on something that’s been unclear: "overdetermined." It's a Freudian term (he first used it for the content of dreams) that means that an effect has a number of causes, and you don’t need them all to get it. I realized that we've been having so much trouble ending car dependence because it is overdetermined.

If everyone purely voted their interests regarding transportation, and transportation spending were proportional to population, we’d have no drivers in a few generations, because transit is so much cheaper than car infrastructure and subsidies. But car dependence persists, because there are a number of factors that skew the politics, and even if you can knock out one factor, the others often are strong enough to keep things skewed.


The current New York City mayoral campaign is an example of this. In a city where a majority of residents live without cars, and a vast majority commute by transit, even the most progressive candidate, Sal Albanese, finds it necessary to pander to drivers occasionally, and the other candidates go even further. Here are some of the factors that I’ve identified.
  1. Non-drivers identify with drivers. Driving is often the only reasonable way to increase the comfort of your commute, and it’s associated around the world with higher social status. Most Americans want to increase their social status, and as a result most non-drivers spend a significant amount of time imagining themselves as drivers. Part-time drivers imagine themselves as full-time drivers. The result is that congestion pricing, which would have made things more difficult for a small minority of drivers, attracted widespread condemnation from people who imagined themselves driving to work in Manhattan any day now.

  2. Key segments of the population drive at higher rates. Because the government controls the curb, parking has been used as a perk for politicians and bureaucrats to reward their allies. The result is that teachers, clergy, doctors and journalists get free parking, as do leaders of influential businesses and nonprofits, and the politicians themselves. These “thought leaders” paint the world in their own image, so that when we go to church or turn on the television, or when our kids are in the classroom, the picture is one of driving. People who drive get lots of respect and understanding from civil servants, police officers, firefighters and even transit operators, and people who don’t get lots of disrespect.

  3. NIMBY arguments favor drivers. Ian Rasmussen has observed that "development" used to be seen as a good thing, but in the past sixty years or so has become a negative. A large part of that is that most people think of development as bringing lots of new cars. One fear is that these cars will clog the streets, but Paul Barter has also talked about the parking spillover bogeyman, where people fear that new residents, commuters and shoppers will take up all the parking and leave older residents, commuters and shoppers to fight for the existing spaces.

  4. Corruption favors road capacity. When transit projects are corrupt, we get big ornamental stations that offer limited improvements in capacity or travel time and fail to attract more riders. When road projects are corrupt, we get roads that are too wide, inviting more people to drive. When transit run out of funding they get cut back or even abandoned. When road projects run out of funding the politicians scramble to take money from other projects, including transit projects.

  5. The "two New Yorks" narrative favors drivers. Lots of people are getting screwed in New York: poor people, nonwhite people, disabled people, people who don’t speak English well, people who aren’t US citizens, people who don’t live in fancy neighborhoods, and people who don’t drive. Frank Macchiarola’s odious "two New Yorks" concept, which has recently been reanimated by Bill de Blasio, simplifies all that multidimensional, intersectional oppression into a single dimension: Manhattan versus the Outer Boroughs. The politicians of the Outer Boroughs, painted as the virtuous fighters for justice, tend to be wealthy white able-bodied English-speaking US citizens who live in fancy neighborhoods like Forest Hills, Riverdale and Midwood, or at least five out of those six criteria, and they almost all drive.

  6. Drivers have more political power. In New York the situation is not quite as extreme as in the rest of the United States, but drivers still tend to be wealthier and better-connected, with more free time and a stronger belief in their own power. That means they tend to vote more and pay more campaign contributions, so a candidate may well win an election on pro-car votes in a district where drivers are a minority. This means that even if politicians, journalists and bureaucrats aren’t drivers, they have an incentive to pay attention to drivers. That attention often goes beyond simple respect to outright pandering.

  7. Rural bias favors driving. Low population density doesn't cause driving, but they're correlated, and if a politician can pander to drivers in a district where 77% of households are car-free, a politician who represents a district with less than 10% car-free households can feel free to completely ignore non-drivers. That's exactly what happens with the New York State Senate majority, and of course the majority of the US senate. There are thousands of transit users living north of Bear Mountain, but whenever people talk about "fairness for Upstate" somehow it always winds up meaning more money for roads.

    The "Senate problem" of disproportionate power given to rural voters is not confined to elected bodies. It's also present in nonprofit associations of bureaucrats, like AASHTO and GHSA, that have a one-state-one-vote policy, and organizations like the New York State Association of Counties, whose mission is to disenfranchise New York City Democrats (and combat complete streets). (Added September 12.)


So we’ve got at least six factors that skew the political system towards car dependence: identification, leadership, NIMBYism, corruption, the “Two New Yorks” lie, and the power of drivers. If we take out one of them, the others will keep money flowing to wasteful roads like the Kosciuszko Bridge. Any good campaign to reduce driving has to tackle at least two of them, and the more the better.

Or we can look for people fighting each of those factors and try to make sure that more than one of them succeeds at the same time. I know some good people. What about you?

Tuesday, February 5, 2013

Christine Quinn's disappointing record on transportation

City Council Speaker Christine Quinn is running for mayor of New York. In theory I like the idea of the city's first lesbian mayor, and she seems like a nice person. She did get the council to pass congestion pricing in 2008. But overall her record on transportation has been negative, and there is no indication that she has any interest in taking a more progressive stand on the issue.


In addition to the contempt she has shown in writing, here are several actions Quinn has taken that show how low issues like pedestrian safety, fair access to jobs, clean air and water, resource conservation and protection, and prevention of global warming rank among her priorities. Thanks to Streetsblog for keeping an eye on her.

  • Jimmy Vacca's Kvetch Committee. When Transportation Committee chair John Liu was elected comptroller in 2009, Quinn appointed Jimmy Vacca to chair the committee. Vacca represents a conservative part of the southeast Bronx where 62% of households have at least one car, and the neighborhood elite simply ignore the other 38%.

    Over the past three years Vacca has continued Liu's pattern of pandering to the city's wealthy car-drivers, flattering their fantasies that they're a disadvantaged, oppressed class and attacking anyone who gets in their way. When he has shown interest in pedestrian deaths, it has been temporary and fleeting, but he always seems to have time to dream up new giveaways to drivers. All this time, Quinn has stood with Vacca and even reiterated some of his kvetches.

    In part, this is clearly a political calculation. Quinn has seen transportation as an issue where there is no strong case for progressive action. With that gone, it is simply a political bargaining chip, to be traded to outer-borough power-brokers in exchange for their support.
  • Four more years of Ray Kelly. Back in January the Post reported that Quinn is planning to reappoint Ray Kelly as Police Commissioner. Under Kelly's leadership, the NYPD has actively obstructed enforcement of laws protecting pedestrian safety, while harassing cyclists in Central Park.
  • No taxi reform. Mayor Bloomberg made a heroic, if flawed, effort to increase the supply of taxis, especially in the "inner boroughs." He tried to get a bill passed in Albany because people seem to agree that the taxi lobby has bought the City Council, and thus it will never pass a bill that the medallion owners don't want.
  • Limiting pedicabs. In 2007, Quinn shepherded a law through the City Council, over Bloomberg's veto, to drastically reduce the number of pedicabs in the city and their ability to cross bridges. It was widely speculated at the time that she did this as a favor for her friend and neighbor Emily Giske, who introduced Quinn to her future wife Kim Catullo. Giske is a registered lobbyist who was working for motor taxi companies at the time.
  • No increase in transit funding. When the MTA was first established, the city and state governments both contributed to the subway and bus budget. Rudy Giuliani cut the city's contribution in the 1990s, as George Pataki was cutting the state's share. Bloomberg hasn't cut the city contribution as much as Giuliani did, but it has gone down. Yes, that's something to critique him for, but the City Council has never challenged him on it.
Remember these things when people ask you to support Quinn. I think we can do better.

Sunday, December 9, 2012

Tweaking congestion by time of day

Last week I observed that we have a degree of control over the speed of cars and the level of congestion on streets. We can design streets to encourage or discourage speeding. In between, we can adjust the capacity of the street by making it one-way or two-way, and adding or removing parking. There are a host of other traffic speeding/calming strategies like signal timing, lane width changes and sidewalk extensions. But I closed by observing that congestion varies with time of day, and even with time of year (Gridlock Alert Day?).

A street that has stop-and-go traffic during the rush hour may have smooth-flowing cars in the middle of the day, and wide open spaces at 1:00 AM. This daily variation can cause huge problems. Many years ago I had the frustrating experience of renting a moving van on Tenth Avenue at 3:00 PM, and getting to Third Avenue around 3:30. Much worse, of course, is the carnage caused by cars speeding through deserted streets late at night and on weekends.


Traffic engineers know all about the daily variation, of course. Their solution is simply to design a road big enough to keep cars flowing during the peak demand, and if people can go even faster on the off-peak they consider that a bonus. Of course, those of us who have to cross the street with those fast cars don't consider it a bonus.

Traffic calming advocates might say that the observed traffic speed should never rise above 20 MPH between 6AM and midnight. On high-demand streets this will lead to gridlock during rush hours, and probably slow traffic during middays and "shoulder" times. If I had to choose, I would choose slower traffic over death, but some of the most vocal, powerful people in the city would rather go fast. Fortunately, there are other ways.

The way that's currently employed by the New York City Department of Transportation is rush-hour parking restrictions on avenues and boulevards across the city. This is a relatively blunt instrument and the city wields it clumsily, with long periods of No Standing on places like Queens Boulevard and Flatbush Avenue. These are much longer than the actual rush hours, leading to speeding and dangerous conditions.

This is where congestion pricing comes in. By congestion pricing I don't just mean a cordon toll to keep traffic low. I mean a charge that varies by time of day: higher when there's more demand, lower when demand drops. The idea is to keep cars moving at roughly the same speed all day. Because the charge can be set by computer, there is much more flexibility than with rush-hour parking restrictions.

What I found on my visit to London was that the congestion charge worked well to keep cars moving all day. The problem was that they were moving too fast. That's a problem that congestion pricing advocates in other cities would do well to keep in mind.

Some day I hope we have congestion pricing here in New York City to flatten out that daily variation in driving. But I hope that we take advantage of that flattening to restore two-way traffic flow (yes, even on Manhattan avenues) and on-street parking, to keep speeds down below 20 MPH. Eventually we can widen sidewalks and add more bike lanes as necessary to accommodate cyclists and pedestrians, and tweak the parking, lane configuration and congestion charge to keep cars moving, but at relatively safe speeds.

Friday, November 16, 2012

Can transit save the environment? Not without riders

The latest Eric Morris Freakonomics post, which I hate, got picked by Stephen Dubner for Marketplace Radio's weekly Freakonomics segment. Kai Ryssdal's interview, and whoever wrote the Marketplace headline, trashed Morris's carefully constructed pox-on-both-houses framing and turned it into a standard Tom Rubin muddle-headed transit advocates attack.

As I said last week, the funniest thing is that Morris's general thrust is actually the main point that I've been hammering at for years. That said, given his earlier writing, I'm not sure that Morris didn't want all along to write a muddle-headed transit advocates attack, but then ditched it for the pox-on-both-houses frame. If his point was really that we should have congestion pricing, he sure buried it. So here's the article Eric Morris should have written - or at least what I would have written.

A major reason for supporting transit expansion is that increased transit use will draw people out of their cars and thus reduce pollution and help save the environment. That part is true, but we have to be very careful how we do this, because transit expansion will not automatically lead to increased transit use and decreased car use.

Increasing transit service without increasing its use can even be counterproductive: today in the United States, the average bus trip requires more energy than the average car trip, because the average bus only has about ten passengers. If the energy powering transit comes from a dirty source, like coal or diesel, it can compound the problem. Environmental advocates not only need to get more transit, but they need to make sure people ride it.

The key to this is realizing that if transit is going to get people out of their cars, they have to choose it over driving. When people choose to make a habit out of taking the bus or the train, it's because it provides a greater value than driving. When people choose to live in a place with convenient transit access instead of choosing to buy a car, it's because they want that transit-oriented lifestyle. Instead of just building transit, environmental advocates need to make it a greater value and a more attractive lifestyle. Here are five ways we can do that:

1. Stop building roads that compete with transit systems. Last year a faithful reader wrote a post about disappointingly low ridership on seven new commuter rail lines. For each of these lines I was able to find a parallel road expansion that had been built at roughly the same time, increasing the value of driving and keeping people in their cars.

2. Give transit its own right-of-way. Transit systems that operate in mixed traffic - buses and streetcars, typically - have very little advantage over driving. When transit can get through a bottleneck quicker than private cars, it offers greater value. The highest-ridership bus systems in the country all make use of a single high-capacity queue-jumper, the Lincoln Tunnel Exclusive Bus Lane.

3. Charge market prices for driving-related expenses. Those Lincoln Tunnel buses are all competing (and winning) against high tunnel tolls. There is no easy way to drive from New Jersey into Manhattan without paying the tolls. Similarly with heavily subsidized purchases of gas and parking. You'd be surprised at how much better the bus looks if you have to pay five dollars for an hour of parking.

4. Sunset your park-and-ride lots. Having people drive to the bus or train may bring down the "cost per new rider" numbers, but the longer people drive to transit, the more pollution they emit. They will also probably drive for most evening and weekend trips. It may be strategically appropriate to build a park-and-ride to get people riding the new line right away, but the plan should be to get rid of the park-and-rides as soon as possible.

5. Legalize true transit-oriented development. The best way to keep people from driving to the station is to make it so that they can live near the station and walk to all their daily shopping needs. Sadly, in most of the country it is illegal to build an apartment building with a supermarket on the ground floor a block from a train station. We need to change that.

Of these five principles, Morris focused on number 3, charging market prices. That makes sense, since Freakonomics is mostly about prices, but at least three of the other factors are also Freakonomics-worthy. Number 1, keeping the road supply down, and number 4, keeping the parking supply down, are central to economic theory. Market prices tend to be lower when supply is higher. Number 5, legalize transit-oriented development, fits with Steven Levitt's libertarian leanings. Number 2, giving transit its own right-of-way, is the only one that requires substantial state intervention.

The main reason you didn't see these factors on Freakonomics, I'm guessing, is because they're not condescending or snarky enough for them. Sorry, guys.

Thursday, November 15, 2012

A grand bargain for walkable streets

As I wrote before, after the failure of Mayor Bloomberg's congestion pricing campaign in 2008, advocates realized that the plan had failed to capture the interest of drivers. "Gridlock Sam" Schwartz then came up with a plan that offered "something for the drivers" to overcome their resistance. The problem is that it offers them too much. The proposed toll reductions and highway widenings would encourage a huge amount of driving, offsetting a large percentage of the reduction in driving encouraged by the added tolls and bus service.

The key failing, which I've also observed in other politicians who claim to be pro transit, is the practice of dividing the world into drivers, transit riders, cyclists and pedestrians, with the assumption that there is never any overlap or change among these categories, and that all people care about is their own transportation. This may be a good simplifying assumption to start with, but when it leads you to disasters like widening the Van Wyck, it's time to step back and revisit your assumptions.

So let's go back to what we actually know: that a significant segment of the opposition to congestion pricing came from people who currently drive. These people will probably not be driving much longer, however. I've been to the congestion pricing hearings. Most of the active opponents are over fifty. In thirty years, most of them will be dead, and many of those who are still alive will be too infirm to drive.

There are of course plenty of people under fifty who love driving, hate paying for transit, and fear that losing their status as drivers will infantilize them and drive all the chicks away. But they're a much smaller proportion of younger generations than they are among the Baby Boomers, and even the diehard motorists will think twice about driving when gas gets up over ten dollars a gallon. We shouldn't be building big highways for them.

The question becomes, then, how do we structure it so that "we" don't wind up taking "their" money? What can we do for the people who are currently drivers, and don't see any benefit to decreased Midtown congestion or increased transit funding? Something along the lines of Donald Shoup's parking benefit districts?


I have one idea. Let's take the sidewalks off their hands.

Although the City Department of Transportation oversees sidewalk maintenance, they report that 99% of the 12,750 miles of the city's sidewalks are the responsibility of whoever owns the adjacent property. The only thing the DOT has to do is send out inspectors and then fine the property owners whose sidewalks aren't up to standards. In practice, they have a program where they repair the sidewalk themselves and send the owner the bill.

From a pedestrian's point of view, that sucks. It means that the sidewalks quality is inconsistent from one property to the next. The city is constantly tempted to cut the sidewalk inspection budget, which provides a huge incentive for the property owners to skimp on sidewalk maintenance and hope that the inspector won't notice. When the inspectors do their job the property owners complain, hence the endless stream of kvetching to elected officials, community boards and the media in the Bronx, Brooklyn, Queens and Staten Island.

It actually doesn't make sense for the property owners to be responsible for maintaining sidewalks. Most of the sidewalks are on city-owned right-of-way, not private property. The city sets strict standards that leave property owners hardly any room for self-expression. While the city DOT can take advantage of economies of scale to save money, small property owners have to pay regular market rate. On the few streets that are missing sidewalks, it is politically difficult for the DOT to force property owners to pay to build them.

Of course, it costs money to maintain all those sidewalks. According to this article, it cost the City of Los Angeles $172,727 to replace a mile of sidewalk. Sidewalk only needs to be replaced at most every ten years, for $17,273 per mile per year, or $220 million. This is a small portion of the $1.4 billion that Gridlock Sam's plan would raise in bridge tolls, leaving almost $1.2 billion for other projects. If enough of "the drivers" are satisfied with this arrangement, then we don't have to widen the Belt Parkway, and we can put all that money into transit projects.

Would "the drivers" like this? The Census website isn't cooperating with me, but I'm pretty sure that most drivers in Brooklyn and Queens own their homes, and a lot of those, especially the vocal ones who show up at meetings and call their city council members, live in single-family or two-family houses. For them, sidewalk maintenance is a big headache that they don't need.

The best part, of course, is that this benefit will accrue to "the drivers" even if they never drive again. Even if they sell their homes, they will still have well-maintained sidewalks to walk on. And so will the rest of us.

Saturday, October 6, 2012

How to stop them taking our money

Okay, so what do you think all these things have in common?

  1. Bridge tolls
  2. Parking meters
  3. Traffic tickets
  4. Gas taxes
  5. Wealth taxes

That's right, they're taxes, fines and fees that people resent paying to the government. And sometimes politicians and bureaucrats have noticed that they can get a substantial revenue stream from these taxes, fines and fees. They've gone beyond simply collecting these taxes, fines and fees and resorted to chasing them, by overzealous enforcement, imposing unnecessary fees and keeping taxes too high. Worse still, many people accuse government officials of chasing revenue in this way, whether or not they're actually doing it.

Now, what do these things have in common?

  1. Bridge tolls
  2. Parking meters
  3. Gas taxes
  4. Cigarette taxes
  5. Alcohol taxes

You got it, they're Pigovian taxes, named after the English economist Arthur Pigou, who argued that when an activity creates a "negative externality" - a cost to society beyond its cost to the individual - a tax can discourage people from engaging in that activity. Tax cigarettes, and the number of people who smoke goes down.

The thing about Pigovian taxes is that people are already prone to resent them. They want to smoke, or drink, or drive over bridges, and here the government is slapping a tax on it. Now suppose that you have a Pigovian tax that the government also happens to get lots of revenue from. Well, first of all it's an incentive for the bureaucrats and politicians to discourage people from stopping the activity. Why would you want to stop people from driving over your bridge, if you'd lose that revenue and maybe default on your bridge bonds?

Secondly, relying on Pigovian taxes for revenue is a bad idea because it creates the suspicion that the government is chasing revenue. That provides the people who already resent the tax with an ready-made scrap of populism to cloak their selfish resentment in.

Now what do all the following have in common?

  1. Buses
  2. Sidewalks
  3. Public schools
  4. Bike lanes
  5. Trains

Yup, they're things that the government usually funds with the taxes, fines and fees listed above. Critically, of the people who pay the taxes, fines and fees above, many don't see these things as being for them.

So imagine I'm a car owner. I park my car at the curb, or in a municipal lot. I see my parking fee (me!) get collected by the government (them!) to spend on buses (them!). The source of the money is separated from control over the money and benefit from it. Who wouldn't resent that?

Of course I'm not the first to observe this. Matt Yglesias has been talking about it for years, as I wrote in 2010. Yesterday he had a particularly apt critique of a plan by Bill deBlasio to tax the wealthy to fund school improvements. Donald Shoup has long argued that his Pigovian parking fees should be returned to the parkers in the form of "parking benefit districts." On Wednesday, Stephen Smith argued on Twitter that allocating toll funds to transit leads to overspending. "Toll money is unearned, economically or politically, and thus is ill spent. Easy come, easy go."

So what's the solution? Something along the lines of Shoup's parking benefit districts. Yglesias writes, "We'd start out with things like congestion fees and carbon taxes that serve non-revenue policy goals but do raise money. Then we'd add on some land taxes and VATs and such to fun public services. Once that's squared away, you can do redistribution with a progressive payroll tax, a small wealth tax, whatever."

The point is to get it from "They're taking my money and giving it to those people" to "We're getting our money back in a form we can use." The trick with Pigovian taxes is to give it back to people in a form that doesn't further encourage that negative externality. You don't want to use parking fees to build more garages. You want to think, "What did the people park here for?" and use it to fund the things they like - ideally an alternative to parking there that they will find acceptable.

This brings me back to the congestion pricing disaster. People resented congestion pricing because it felt like "them taking our money and giving it to those people." Gridlock Sam is thinking along these lines with his something for the drivers, but by building more highways he gets it drastically wrong. Bridge toll money needs to go into something that the drivers will appreciate, but not driving.

Incidentally, the MTA payroll tax was a disaster despite being a broad-based tax just because it was so badly handled that it pissed everybody off, having to file a bunch of forms just to pay thirty dollars a year. I'm sure it was designed that way from the beginning.

Friday, September 28, 2012

Queue myopia

Benjamen Walker has a new radio documentary out for the BBC (MP3), all about waiting on line. It's definitely worth a listen. I especially appreciated the distinction between "serpentine" first-come first-served queues of the kind you get at banks and airports, and separate queues of the kind you get at most supermarkets. It always drove me nuts when Duane Reade drugstores had the separate queues, because I kept getting stuck with a tube of toothpaste behind someone with a cart full of stuff, watching people fly through the next register. I'm really glad they've gone serpentine.

I have to say that while I share Walker's concerns about inequality, I have a problem with the overall thrust of his thesis. I'm aware that people generally don't like being called "myopic," but I can't think of a better word. Let me know if you have suggestions.


My problem with Walker's approach to "priority queueing" is the same as my frustration with Richard Brodsky's arguments against congestion pricing, or the Free Public Transit campaigns, or the typical liberal opposition to raising the price of just about anything. It's based on a limited view of its subject, in this case queuing, and focuses in on a local pattern of inequality while ignoring the wider inequalities that exist.

In all of Walker's examples, he presents an existing system without inequalities, and describes a "priority queuing" that allows people to get what they want faster by paying more. But in all those cases, if you zoom out you find that there was always inequality; it has just been realigned on a finer scale, or perhaps in a more blatant way.

Before I get into the exact examples, there's a clear inaccuracy in Walker's story, one that shouldn't have gotten past the fact-checkers. In a segment on the I-85 Express lanes in Atlanta, one of his sources claims that "they kicked the carpools out of the hot lanes, slowing down all the other lanes." Walker himself repeated this in an interview with Mike Pesca on the Brian Lehrer Show. It's not true, and it should be corrected.

It seemed funny that they would be called "hot lanes," since "HO/T" stands for "high occupancy/toll," meaning that you can use them if you either have high occupancy or pay a toll. And in fact the PeachPass FAQ says, "Three person carpools, vanpools, motorcycles, Alternative Fuel Vehicles, and transit will be able to use the HOT lanes without paying but are still required to register for a Peach Pass account prior to using the roadway." The Atlanta Journal-Constitution confirms, "Three person carpools, vanpools, motorcycles, Alternative Fuel Vehicles, and transit will be able to use the HOT lanes without paying but are still required to register for a Peach Pass account prior to using the roadway."

These "hot lanes" in Atlanta have been inserted into a system where the very rich have had helicopters for decades and chauffeurs for centuries, and the very poor have no cars. Airplanes have boarded first class passengers before coach for as long as I can remember. Was it ever any different? Maybe back when the middle class couldn't afford air travel at all. Atlanta, remember, is the place that gave Raquel Nelson a higher penalty than the driver of the car that hit her son.

Amusement parks? There are multiple amusement parks in a given area, and they probably already practice some kind of price discrimination. I'm sure that wealthy people who don't want to wait on line at Six Flags can pay for other options, like jet skis. And community colleges - people with more money can get an education at a private college without waiting. Before you could buy Gold Tech Support, the support was always better for IBM customers than for Emachines customers, and people who assembled their computers from parts got no support at all.

That's only scratching the surface. People with money have long been able to jump the queue in nightclubs and restaurants, and shop in stores with shorter lines. Just compare the lines in Brooks Brothers or Ann Taylor to those at Marshall's, Conway or Ross's. If you're prepared to bribe someone you can get all kinds of special treatment; in 2003, Esquire ran two great articles by Tom Chiarella on what you can get for a twenty dollar bill. Usually you don't even have to do anything as crass as bribery, you just have to look like you're going to spend some money.

In the end, I am just as disturbed as Walker at the idea that something can be so much easier for people who have more money. But I recognize that it's always been that way. These new high-tech "priority queues" are just a rearrangement of that inequality, not creating something new. There may be problems with that rearrangement, but you'd have to dig deeper to find them.

Thursday, August 16, 2012

A superficial charm

The guest author for tonight's post is Robert Moses, Chairman of the Triborough Bridge and Tunnel Authority. I have access to the New York Times archives, and tonight I was poking around and came up with this gem: a letter from Moses to Mayor Vincent Impellitteri, delivered March 9, 1952. I looked for another copy online, but didn't find one. Since it's a letter from one public official to another, conducting official business, I believe that it is freely reproducible. I have removed the headlines, which definitely seem like the Times house style, and are the only things that could constitute the intellectual property of that newspaper.

The main reason I'm sharing this with you is contained in the very first paragraph: the proposal that Impellitteri made to Moses. In his reaction, Moses was wrong in several respects, including his ideas that the construction of off-street parking would constitute a "solution of the parking problem" and that tolling the four "free" East River bridges would "serve no immediate purpose, at least so far as the current rapid transit deficit is concerned." He also shows his characteristic double standard where it is expected that the government will subsidize roads and parking, but transit is expected to pay its own way.

On the other hand, I think he's right that the demands for transit expansion, fare stability and high wages in the context of heavy public investment in the competing road network were as hard to reconcile then as they are now. Turning everything over to an autocrat is not a way to build long-term consensus.

You'll find the letter below. Bonus: I also found an interesting television interview with Moses, "the nation's foremost city planner," from 1953.


Moses and Impellitteri inaugurate the Central Park Carousel in 1951.
Photo: New York City Parks Department.

Dear Mr. Mayor:

You have asked us to comment promptly on a suggestion that a substantial part of the city's financial problem might be solved by expanding the functions of this authority to include all rapid transit, all private and publicly owned bus lines, all automobile parking (including parking meters and parking garages as well as overnight parking), the Staten Island ferries and all existing East River and Harlem River bridges on the assumption that these will become toll structures. The present rapid transit debt would continue to be serviced by the city, along with future improvements and extensions.

We pointed out in a report to Mayor O'Dwyer, dated Oct. 7, 1949, in answer to a request from him for a frank analysis of the proposal of former Corporation Counsel Paul Windels to establish a Transit Authority, that we did not believe such an authority, which it was proposed would finance improvements and extensions of the rapid transit system as distinguished from the existing debt and operate on a completely self-supporting basis, could sell bonds and remain solvent unless it had a free hand to raise fares at will, without public debate and popular approval. Our final conclusion was that the authority device was not the answer to the city transit problem at that time.

The present suggestion differs from the Windels proposal in other respects beside the fact that it does not involve the assumption of any responsibility by the authority for any construction work or for the deficit for the coming year. The suggestion also differs materially from Mr. Windels' proposal in that back of it is the idea, in our judgment without validity, that a huge new solvent and successful quasi-public structure can be established by placing the credit of the Triborough Bridge and Tunnel Authority back of rapid transit and related operations, adding tolls from presently free bridges, throwing in revenues from parking, and finally establishing substantially higher rapid transit and bus fares.

Let us analyze this plan in somewhat greater detail, and give the facts for our objections to it. To begin with, the Triborough Bridge and Tunnel Authority represents a consolidation of toll crossings and their approaches and related facilities, only recently refinanced on exceptionally favorable terms, which, among other things, will enable us to complete essential approaches, connections and extensions, the cost of which otherwise would fall on the city, state and Federal governments as part of the metropolitan arterial program.

The proposed Columbus Coliseum is the only project we are undertaking which is not directly connected with the main arterial toll system. This authority has established a first-rate reputation because its program is definite, limited and financially sound. We propose to keep it that way.

Under our recent financing, all our future revenues are pledged to our bondholders up to and including the year 1969. We cannot divert any of these revenues. We are trustees. No purpose would be served by discussing in this memorandum the possible use of revenues of this authority after 1969. Certainly this credit cannot be used now for other purposes. Moreover, it should be pointed out that long before our present debt is paid off, there will be other crossings and approaches required, which it will not be possible to finance in any other way than through the issuance of additional bonds.

It is only necessary to refer to the fact that the state has a highway program of over $3,000,000,000, more than a billion of which is urgently required, which it has been unable to finance, and that the toll principle for arterial construction has now been established by the state in connection with its Thruway system. Similarly, Federal highway funds have shrunk as costs of construction have risen. In any event we must assume that no margin of credit derived from our present toll structure can be used to rescue less successful enterprises in other fields.

Similarly, we do not support the idea that the rapid transit deficit can be reduced by parking revenues. Parking revenues from meters, parking fields and public garages, overnight parking, etc., are required for the construction of off-street facilities, and there would be no conceivable surplus available to sweeten the rapid transit situation. If the parking revenues are used otherwise than for off-street facilities, there will be no solution of the parking problem, which is if anything more serious at the moment than the rapid transit deficit.

The addition of the Staten Island ferries as a function of this authority would simply add another headache. Even if the fares were doubled there would still be a substantial deficit in the operation of these ferries.

The transfer of existing East River and Harlem River bridges to this authority as toll structures has a superficial charm which upon closer study is very quickly dissipated. Even if we assume that the public would go along with such a proposal, which we greatly doubt, and if it were in the merest of free movement of traffic to do so, which is also highly debatable, the cost, delays and inconveniences of this conversion would be enormous. We have estimated this cost at between $80,000,000 and $100,000,000. It would take at least three years to bring about. A recent careful estimate of the costs of converting to tolls the most heavily traveled of these bridges, namely the Queensboro Bridge, was $10,000,000. It would be necessary to provide additional ramps and levels, toll booths, and other facilities, and extensive land is required for these purposes. Twenty-year bonds would be needed for this purpose. Certainly this dubious and unpopular device would serve no immediate purpose, at least so far as the current rapid transit deficit is concerned. During the period of conversion and reconstruction of the free bridges, there would be many other additional expenses including the entire replacement of one bridge, namely that carrying Broadway over the Harlem Ship Canal.

It must be apparent that the real purpose back of any such expansion of the functions of the Triborough Bridge and Tunnel Authority is to raise rapid transit fares. This is the only device which will produce really substantial additional income. The statements which have been made regarding savings in operation through superior management by this Authority are no doubt flattering to its members, but cannot stand impartial analysis. We must bear in mind that it is both a state and city policy to establish a general forty-hour week, to grant increases in pay to meet the increased cost of living, and also to provide new and better facilities especially at rush hours.

The expenditures required for the new Second Avenue railroad and the other extensions of the agreed city program in the several boroughs, which will cost at least $550,000,000 not including rolling stock, will not produce substantially higher net revenues, no matter what is the basic fare. In other words, there will not be proportionately more riders as the result of these improvements, although riders will travel much more comfortably and not under present inhumanly overcrowded conditions. To put it another way, this expansion will represent a redistribution of present riders rather than large additions to the total.

No doubt economies can be made in the operation of the rapid transit system through better, tougher and more businesslike administration, but these economies will be relatively small and will not materially change a picture involving a $70,000,000 deficit for the year 1952-53. We must add to this figure also an additional $10,000,000 loss if the private bus lines are put under public operation. There must also be under prudent management a depreciation fund to keep equipment up to date and make normal replacement in the system, totaling some $40,000,000. Finally we must add in the $3,000,000 from ferry operation, which brings the grand total of present deficiency up to $123,000,000. We figure that to make up this deficit would require a subway fare of 17½ cents and bus fare of 17½ cents with no combination rides. At the same time this authority would be faced with the same clamor for extension of rapid transit and bus lines (whether or not they were economically sound) as is the present Board of Transportation.

It must be quite obvious, aside from the many political implications, that the determination of any such large increase in fare is one of policy to be decided directly by the people of the City of New York, and not one which can be brought about by the device of expanding the functions and responsibilities of the Triborough Bridge and Tunnel Authority, even assuming that its present members could be induced to be parties to any such arrangement.

As to more economical operation, there are no figures available, nor has there been an study made, which shows just what could be accomplished. The authority would have to deal with the same Civil Service rules and regulations and Civil Service employes as does the Board of Transportation. The authority would be faced with the same demands from the same unions as is the Board of Transportation, some of which we pointed out in our last report must, as a matter of simple justice, be granted.

It is therefore our conclusion that the suggested expansion of the functions of this authority is unsound and that other more practical, more direct and more immediate means must be found to solve the city's present financial problem.

Very truly yours,

Robert Moses, chairman,
George V. McLaughlin,
William J. Tracy.

Friday, June 22, 2012

Balaji Prabhakar and the invisible carrots

A few days ago I wrote about two pilot projects carried out in Bangalore and Palo Alto by Stanford computer scientist Balaji Prabhakar. In each case, Prabhakar's team implemented a lottery where the more an employee traveled to work at off-peak times, the greater their chances were of earning a small cash reward. Last year a new pilot was implemented on Singapore's trains.

As I wrote before, Prabhakar's work is promising because it tests the psychology of incentives and does not assume that people are always rational actors. But I have a big problem with the way it's been framed in recent news articles, specifically a June 11 Times article by John Markoff and a Transportation Nation post by Andrea Bernstein and a Planetizen post by Jonathan Nettler, both from the following day.

There seem to be four elements involved in Prabhakar's plan: it is perceived as providing positive incentives rather than punishments; it tries to make doing the right thing fun and interesting by making it more like a video game or collecting box tops; it only targets the "margin," those people who are most likely to shift; and it relies on network effects to build a sense of enthusiasm for the change.

Markoff's article focused almost exclusively on the first, and brought in the frame of carrot versus stick: "A few years ago, trapped in an unending traffic jam in Bangalore, India, he reflected that there was more than one way to get drivers to change their behavior. Congestion charges are sticks; why not try a carrot?" Bernstein loved it, excerpting those last two sentences and putting "Carrot or Stick" in her title. Nettler went further, calling it a "kinder, gentler way to alter driver behavior.

Did Prabhakar even think about it in those terms back in Bangalore? The word "carrot" is only mentioned by him once, in the title of a talk he gave this past March. The metaphor is invoked by several journalists and PR people, but not him.

The problem with this thinking is that it ignores all the other carrots that are out there. From road subsidies to cheap gas to minimum parking requirements to the use of cars as heuristics for maturity, power and sexual attractiveness, the world is full of incentives for people to drive.


Image: lizard31 / Cheezburger


If you want to actually solve a problem, you need to get to the root of it. Prabhakar's "solution" to congestion alleviates the symptoms, but it does not solve the problem. Now I like a good short-term solution, or "kludge," as they call it in Kannada. I love that when I have a headache I can take a couple of pills and relax, and maybe in the morning my headache will be gone, but if the headache isn't gone the next day I'll go see a doctor. In the end, whatever is causing my headache needs to be fixed, or else I'll wind up with a heart attack or an inoperable brain tumor. The underlying problem needs to be dealt with.

In the case of Stanford and large parts of the New York area, the problem is that driving and sprawl living are incentivized. In the case of Bangalore, the problem is that the tech companies are prohibited from building at locations that are well-served by the existing transportation network. These create "carrots" for people to congest the roads and buses.

Prabhakar is right that it's silly to subsidize bad choices and then tax them, but he doesn't deal with the subsidies. A procedure that brought the latest institutional psychology to bear on the problem of people getting entrenched in inefficient, unfair, destructive systems? Now that would be impressive.

Sunday, June 17, 2012

Balaji Prabhakar and the mystery rewards

Last week, the Times ran a gee-whiz article about Stanford computer scientist Balaji Prabhakar and his pilot program to reduce the number of people driving to campus. With a three million dollar (!) grant from the US DOT, it implements a lottery where people who choose not to drive during peak hours get credits which can be used to "win random cash rewards from $2 to $50 over and over again."

Whenever I enter a random drawing - that I actually care about, as opposed to paying a dollar for a charity raffle - I always want to find out what the odds are that I'll win. Interestingly, the Stanford pilot gives no indication of the odds that a driver will actually win one of these payouts. It makes me wonder how many economists, investors and statisticians signed up for the thing.

This is a more recent version of a pilot that Prabhakar and his colleagues ran in Bangalore, where commuters from downtown to the suburban call centers received similar random cash rewards for shifting to a less congested time. Interestingly, in that earlier version they were all bus passengers, and got rewarded for taking the bus.



The Stanford team did publish a paper (PDF) describing the Bangalore pilot, in which they go into detail about the reward system on Page 4:
Reward pyramid: The scheme has a pyramidal reward structure with four levels, as shown in Figure 9. The reward amounts are Rs. 500, Rs. 2,000, Rs. 6,000 and Rs. 12,000 in levels 1, 2, 3 and 4, respectively. The total sum of money in the pyramid is Rs. 96,000, distributed equally among the four levels. (Note that this amount is roughly equal to the total cost of extra fuel per week which was estimated at Rs. 15,000 per day.) Thus, there are 48 prizes worth Rs. 500 each, 12 worth Rs. 2,000, 4 worth Rs. 6,000 and 2 worth Rs. 12,000. Each level has a minimum number of credits needed for qualifying at that level. This number is 3, 7, 12 and 20 for levels 1, 2, 3 and 4, respectively. A commuter who qualifies at one level automatically qualifies at all lower levels.
In other words, the only way to know your chance of winning any given prize is to know which level you've achieved and how many other people are in each level. You could, of course, write a computer program to tell the commuter what the odds are for each level on a given day, but why bother if nobody cares?

In figure 3, it is revealed that there were 8000 commuters registered in January 2005. With 66 rewards, the chance of winning any reward is one in 121, which is pretty good as far as lotteries go. With one lottery a week, it is likely that any given commuter will win the ₨500 reward within three years. If we assume that each commuter works with ten other commuters, any given commuter will know someone who has won within three months.

My guess is that these odds were high enough to get people to change their behavior on the basis of feeling alone. That's pretty impressive. I have serious problems with the framing of the issue and concerns about the application of this idea, which I'll raise in future posts.

Friday, May 18, 2012

Something for the drivers

One of the biggest objections I have to "Gridlock Sam" Schwartz's proposal to reinstate tolls the East River bridges is the extent to which it goes to provide "something for the drivers." It is based on a serious misreading of the objections to Bloomberg's congestion pricing proposal and Ravitch's bridge toll plan, and if it succeeds it will be an empty victory.

Schwartz correctly observed that the vast majority of the objections to the congestion pricing plan and the Ravitch plan came from drivers. Unfortunately, he failed to grasp why they objected. Sure, they came up with all kinds of reasons, like "it's wrong to charge people to access a part of the city," and "it's a regressive tax." But none of these reasons made any sense, and if they weren't so dead set against the idea of tolling the bridges they would have known that.


The fight against congestion pricing was almost entirely symbolic, like the numerous actions that Jimmy Vacca has taken: deactivating parking meters on Sundays, getting rid of the parking violation stickers, and enshrining a five-minute "grace period" in law. These drivers view their status as car owners as either a birthright or a hard-fought victory. It is a symbol of their worth and their station in life, and when the city slapped a sticker on their cars it turned that symbol into a badge of shame.

For the past hundred years the "free" bridges and streets have been a potent symbol in their own right, demonstrating that the city may not be able to do much, but they're doing all they can to promote driving, and drivers are their top priority. The NYPD's ticket-fixing, the DCP's minimum parking requirements and the widespread tolerance of double parking have had similar symbolic value.

Already, the actions of Janette Sadik-Khan have made drivers less welcome in parts of Manhattan and Brooklyn, and they have encountered vehement opposition. The idea that a person who has put in years of sacrifice to become a car owner (or has inherited that status from their parents) would count no more, or even less than, some kid from Ohio who just sits around all day playing bad music or making artisanal pickles drives these people nuts with rage. But to charge a fee to cross the river would be the ultimate insult. If there are more important things for the city to do than to help responsible citizens navigate the streets with a free bridge or two, then the city has truly failed them.

Yes, of course they spend more time driving around the other boroughs than driving into Manhattan. Schwartz looked at that and thought that if he made it easier and cheaper for them to do that, they would allow tolls on the bridges. But this is not about money or convenience, and that's why nuts like Richard Brodsky are completely unimpressed. It's about symbolism, and Schwartz's plan would in fact reinforce that symbolic segregation by expanding the roads in the outer boroughs. There is nothing you can do "for the drivers" that would erase the symbolic humiliation of the government making them pay to drive into Manhattan.

You and I know that the road network is completely unsustainable, and that some day New York's drivers or their children or grandchildren will have no choice but to give up their cars. Some of them see the writing on the wall, and they may be willing to give in on tolls into Manhattan if Schwartz throws in enough goodies "for the drivers." But they may ask too much. They may ask for things that will make the bridge tolls worthless. Is Schwartz willing to give them those?

Tuesday, May 15, 2012

Gridlock Sam's plan

Last month Crain's ran a glowing profile of "Gridlock Sam" Schwartz, and I was certainly impressed with the stories about him injecting even a tiny bit of concern for cyclists, pedestrians and transit riders into the New York City "Department of Traffic," surrounded by engineers who were trying to cram as many cars as possible into Midtown Manhattan. Sam is clearly trying to help as many New Yorkers as possible get around efficiently, and he deserves credit and support for this. Plus, anyone who follows me on Twitter can't be too bad.

Schwartz has been making the rounds lately with the latest plan for tolling the East River bridges. I've long argued that something along these lines is necessary, for reasons that I laid out in detail in an recent blog post. In addition, his plan would deal with the very specific problem of the tolls on the Verrazano and Manhattan Bridges, which offer truck driver going from Brooklyn to New Jersey the perverse choice between paying $70 to travel on the Gowanus and Staten Island Expressways or pounding the streets and tourists of Lower Manhattan for free.

Schwartz's plan, similar to the one put out a few years ago by Charlie Komanoff on a commission from Ted Kheel, would also reinstitute tolls on the Brooklyn, Manhattan, Williamsburg and Queensboro bridges, and implement a "screenline" toll to drive across 60th Street in Manhattan. The toll would be five dollars. Instead of the massive increases in bus and subway service promised by Bloomberg and Ravitch, it would provide relatively little:

  • Reduce bus fares by $1 in neighborhoods with no subways
  • No service reductions on local buses for three years without Community Board approval
  • Consider restoring some local bus service discontinued in 2010

Why the huge reduction? Schwartz tries to build support by offering "something for the drivers too." Komanoff and Kheel proposed to raise tolls on the Whitestone, Throgs Neck, Marine Parkway, Cross Bay Veterans and Henry Hudson bridges. Schwartz goes the opposite direction and proposes that instead of using the toll money for transit, as is done with the current tolls on the MTA bridges and tunnels, and as Bloomberg and Ravitch proposed, he would use some of the money to widen the Belt Parkway to Interstate standards and allowing truck traffic on it. He also proposes to widen the Staten Island Expressway, and the Van Wyck Expressway near Kennedy Airport, where it gets most congested.

Charlie Komanoff likes the plan: he gushed in Streetsblog about how it "feels inclusive" and "feels egalitarian."

I'm a lot more skeptical. Sam Schwartz has contributed to the discussion with this plan, but I hope it doesn't end with this plan being adopted. To me it doesn't actually feel inclusive or egalitarian anywhere below the surface. It doesn't fit well with my own goals, particularly with expanding the constituency for transit beyond the core of the city. There are a number of other things that bother me. I'll go into them in detail soon. In the meantime, feel free to share your own concerns in the comments.