Pedestrians vs. Left Turn Signals



Despite the new signs, pedestrians cross illegally between Broadway medians at 96th Street.

Last week I traveled to my homeland on the Upper West Side. As a recent transplant to Brooklyn, I had forgotten the nightmare that is the intersection of 96th Street and Broadway.

In 2010, a new median station entrance opened for the 1/2/3 IRT Line 96th Street station. The entrances had previously been located on the sidewalks. While the new station is beautiful and makes sense for circulation of subway users, it has created a hazard on the street by forcing pedestrians to the median.

Existing Conditions

Diagram 1: Existing Pedestrian Movements at 96th Street and Broadway

To rationalize traffic movements, NYCDOT installed left turn lanes on Broadway, creating new signal phasing. This change has created a lot of confusion and caused dangerous situations and conflicts between cars and pedestrians.

To mitigate these challenges, NYCDOT has placed signs such as “Wait for Walk Signal” and “No Ped. Crossing Use Crosswalk” (pictured above) to encourage better pedestrian behavior. However, in New York, pedestrians walk wherever and whenever they please. So, if they don’t see cars moving, they go, often putting their lives at risk. This not only occurs at 96th and Broadway, but many other busy intersections throughout the city with left turn signal phases.

At this intersection, after the east-west traffic stops and before the left-turn signal phase begins, people begin to cross north-south on the western and eastern crosswalks in the intersection, despite the red light and eventual on-coming traffic.  In addition to the potential crashes this creates, pedestrians act outraged, as do the drivers. This prevents cars from moving through the signal with sufficient time, and creates congestion for the following phase as well. Congestion and danger is furthered by people illegally crossing between medians (see Diagram 1).

Diagram 2: Potential Solution: The Pedestrian Scramble ("Barnes Dance")

It is true that better enforcement and ticketing by the NYPD might change pedestrian behavior, but I believe the DOT should explore more creative solutions for this intersection. One possible solution (Diagram 2) could be a variation on the “Pedestrian Scramble” or “Barnes Dance,” which would stop all traffic and allow pedestrians to cross in one movement. This would decrease the amount of separate pedestrian movements and perhaps cause less confusion, while allowing pedestrians to take direct routes. This approach could reduce conflicts between pedestrians and cars, improving safety, health, and convenience for all intersection users.

Don’t-Miss Events in April


We have a fantastic set of events slated for April at the NYU Rudin Center:

April 9th (morning): Local Innovations in Bus Rapid Transit: A Panel Discussion – This panel will focus on innovative bus planning in the New York Metro area, and the unique challenges it presents to both policy makers and citizens.

April 9th (evening): Short Talks, Big Ideas: Transportation Innovations - Join the NYU Rudin Center for this high-energy series of short talks about how we’re using, improving and thinking about the future of transportation.

POSTPONED UNTIL FALL April 10th: Climate-Proofing Connectivity: The Future of New York’s Links to the Northeast Corridor – This symposium will convene experts on climate change, next-generation aviation, and high-speed rail planning to explore how New York’s external transportation connections can adapt to climate change in the coming decades to provide secure, resilient and sustainable economic lifelines in the face of an uncertain future.

April 20th: Rethinking Regulation Design ChallengeThis challenge is about bringing stakeholders to the table to develop innovative, realistic, and implementable solutions to help address the problems government regulators face when monitoring illegal apartment conversions in NYC, and non-compliant “Chinatown” motorcoach companies. (with NYU Wagner and OpenPlans)

All events are free and open to the public. Click on the event titles to register. See you in April!

USDOT Under Secretary Polly Trottenberg Visits the Rudin Center


by Nolan Levenson, photos by Marilyn Lopez

Polly Trottenberg, Under Secretary of the US Department of Transportation, visited with the NYU Rudin Center and Wagner students, faculty, transportation professionals, and representatives of the media last week to discuss timely issues in federal transportation policy. Her talk focused on financing transportation, the successes of the TIGER grant program, and the increasing role of technology and data in government.

She also addressed how the Sequester will impact USDOT. Since the Federal Aviation Administration (FAA) composes about 75% of the USDOT’s budget, they will bear the burden of the spending cuts. Airports with less traffic may lose their funding. There will also likely be impacts to the Federal Transit Administration’s (FTA) budget, but about half of USDOT will be unaffected.

Ms. Trottenberg also highlighted the increasing difficulty of financing transportation as the gas tax no longer covers the nation’s transportation infrastructure needs. She pointed to tools such as gas sales taxes and Vehicles Miles Traveled (VMT) taxes, and emphasized tolling of highways as a potential significant revenue source. She acknowledged that while federal transportation law prevents the tolling of existing road capacity, state law and legislators have also failed to initiate policies that would change this limitation, which creates a political block on a potential new revenue source for transportation. In general, she said, she believes that state transportation policy must be pushed in a more progressive direction.

Many in the room were happy to hear Ms. Trottenberg’s support for more open data and advanced technology use at the federal government. She said that USDOT should tap into the resources of the private sector to better understand and analyze transportation issues throughout the country. She pointed to a moment when her staff was on the phone with Google employees in Stuttgart, Germany, when the USDOT staff asked about the reliability of real-time traffic data. After a pause of a few seconds, the Google employees responded, “well it’s not like it’s more than 60 seconds off,” a response met with laughter by USDOT staff considering that to be, of course, extremely reliable. The story was also received with laughter during our discussion, and the audience appreciated the example for government’s need to tap into existing technological resources.

Workshop on New Data for Bicycling Research: Crowdsourcing, DIY Sensing & Apps


On March 12, Anthony Townsend of the NYU Rudin Center and Aaron Naparstek of MIT’s Department of Urban Studies and Planning convened a workshop on New Data for Bicycling Research: Crowdsourcing, DIY Sensing & Apps to assess the demand and availability for a wide range of data about bicycle ownership and use in New York City. There was active participation from a broad range of stakeholders including the city’s transportation and IT agencies, leading bicycling advocates, and civic tech and hacker groups. In the coming months, the Rudin Center will be developing a research plan devoted to improving the supply and quality of data for bicycle research in New York City.

A Prezi of the workshop proceedings can be found at
http://prezi.com/w6sxxqt7bsgt/new-data-for-bicycling-research/
Workshop Participants

Neil Bezdek, New York City Department of Transportation
Justin Brandon, Harvard Graduate School of Design
Wendy E. Brawer, Green Map System
Alison Cohen, Independent consultant
Neil Freeman, New York City Department of Transportation
Melinda Brooke Hanson, NYU Rudin Center
Frank Hebbert, OpenPlans
Noel Hidalgo, Code for America
Mike Infranco, Transportation Alternatives
Charles Komanoff, IGC
Dan LaTorre, Project for Public Spaces
Stephanie Levinsky, New York City Department of Transportation
Aaron Naparstek, MIT Department of Urban Studies and Planning
Andrew Nicklin, New York City Department of Information Technology and Telecomunications
Brian Riordan, Strava
Caroline Samponaro, Transportation Alternatives
Dani Simons, Independent consultant
Claudio Silva, NYU Center for Uurban Science and Progress
Anthony Townsend, NYU Rudin Center
Chris Whong, NYU Rudin Center
Matthew Willsee, Cyclee
Susi Wunsch, Velojoy

Super-Commuting vs. Mega-Commuting


Carson Qing & Sarah Kaufman

Earlier this week, The U.S. Census released a report announcing the proliferation of “mega-commuters,” 600,000 Americans who travel at least 90 minutes and 50 miles each way. It’s slightly different from the “super-commuters” we at the NYU Rudin Center defined last year, who are individuals who work in one county (usually of a major metropolitan area), but live in another, usually commuting more than 90 miles each way.

The most pressing difference between the terms “mega-commuter” and “super-commuter” is that the former focuses on the individuals traveling long distances regularly to their workplaces, while the latter also includes people who make these journeys once or twice or week, at most. These long-distance, low-frequency super-commuters may travel to the office only once or twice per week at most, or maintain similarly unconventional schedules. Our definition of a super-commuter, estimated to be 3% to 10% of the workforce depending on the city, includes both “mega-commuters” and low-frequency, long-distance commuters who were not captured in the mega-commuter definition. The graphic below illustrates the differences between these two types of super-commuters in their travel behavior.

 

The U.S. Census Bureau provides two data sources to define origins and destinations of commuter flows. To define the mega-commuter, the Census Bureau used American Community Survey (ACS), which measures data from only 7.5% of the working population, then extrapolates the data for a larger population based from that sample. But the Census Bureau’s OnTheMap tool (OTM), used in our super-commuter report last year, extracts employment data directly from state employment insurance records and represents coverage of nearly all employees and their work locations, with the exception of self-employed individuals. Because of this difference between ACS and OTM, the “mega-commuter” figure is most likely an undercount of long-distance commuters.

Using OTM, we found nearly 650,000 long-distance commuters in the top five U.S. super-commuting metropolitan areas who commute to the core county from a county outside the metropolitan area. OTM is more successful at capturing low-frequency commuting trips than the ACS, because the ACS’s line of questioning focuses on frequent trip-making, asking respondents where did they work for the majority of the past week and how did they travel to work, and assumes that the sample data applies to a larger population[1]. Low-frequency commuters are coded as “working from home” in the ACS, even though in reality their link to the workplace is not severed: the trips are made less frequently, due to the impediments of travel time, distance, and cost.

The rise of “tele-commuters,” who now represent 10% of the total workforce (or in the case of Aetna, 47% of its workforce, up from 9% in 2005[2]), and low-frequency, long-distance commuting has created a fundamental shift in the way people travel between home and work. The traditional “Journey to Work” survey methodology used in the ACS does not fully capture new patterns of commuting or the growing distances between home and work locations in metropolitan regions. It neglects the large and growing number of Americans who do not travel exclusively between home and work on a regular basis. Thus, transportation planners and researchers should not overly rely on the “Journey to Work” methodology to analyze and understand transportation flows: a more nuanced data source that captures a greater variety of trip purposes is increasingly necessary to analyze travel behavior in this new era of commuting.


[1] Spear, Bruce. “Improving Employment Data for Transportation Planning.” Cambridge Systematics. September 2011. http://onlinepubs.trb.org/onlinepubs/nchrp/docs/NCHRP08-36(98)_FR.pdf

[2] Miller, C. & Rampbell, C. “Yahoo Orders Home Workers Back to the Office.” The New York Times. 25 February 2013.

Tomorrow night: Kickoff meeting of Open Transportation Data Meetup


Tomorrow night, join the NYU Rudin Center, Code for America and the Straphangers Campaign to discover and discuss open transportation data in the New York City region. We’ll have presentations from MTA and NYC DOT, plus an open mike session.

The event is free and open to all. Sign up here: http://www.meetup.com/NYOpenTransport/events/102323472/

A Modest Proposal: Transportation Enterprise Zones


It’s a quiet week here at NYU and the Rudin Center, with the students still out on break and many of my colleagues in Washington, DC for the annual Transportation Research Board conference. I skipped the conference, but did make it to George Mason University’s School of Public Policy on Saturday morning for Transportation Camp DC, an un-conference organized by Frank Hebbert of NYC-based Open Plans.

Like all unconferences, Transportation Camp’s sessions were hit-or-miss. But I managed to end up in three that were quite interesting.

The first was on crowdsourcing strategies for mapping bike travel, organized by Kari Watkins and Alex Poznanski of Georgia Tech. They have been updating the CycleTracks app first launched by the city of San Francisco (which has received tens of thousands of trip logs from bikers) to map bike trips in Atlanta. This is a topic that’s dear to my heart, and I’m thinking actively about how Rudin can advance similar strategies here in New York to lay a baseline understanding of how bikes are used before the CitiBike launch this spring.

The second was about tactical urbanism and its meaning for transportation (I missed the organizer’s name unfortunately). Most of the discussion was about how tactical or informal and formal urban interests can interact. One participant suggested the need for a national organization like Project for Public Spaces to step up and develop a toolkit for helping community activists cross the bridge from tactical intervention to pilot, and how to connect with organizations like arts councils, business improvement districts, etc. that can inter-mediate their relations with authorities to get needed permissions and funds to evolve beyond one-offs.

The final conversation was about what session leader Andrew Jawitz of Car Free Maine called “civic hardware” – using cheap DIY technologies like Arduino and Raspberry Pi to build automated vehicle trackers for under $200. (Perhaps the best example was the Transit Appliance  that turned the beloved Chumby into an ambient next bus display for your desk or night stand)

• • •

The real epiphany of the day for me popped into my head during the tactical urbanism session, and really gelled during the civic hardware chat. Just like the old American maxim that “states are the laboratories of democracy”, by corollary “blocks are the laboratories of a city”, someone said.

Well then, why don’t we change the rules for transportation in the places that are really problematic?

What if we designated “transportation enterprise zones” and encourage experimentation and innovation by loosening some of the regulations that stifle mobility innovation? Immediately, a bunch of recent examples where this approach might have helped came to mind. In the aftermath of Hurricane Sandy, huge swaths of New Jersey’s Hudson County were cut off from Manhattan due to the months-long knockout of PATH commuter rail (service to Hoboken, where I live, has still not been fully restored nearly three months after the storm). While buses, ferries and licensed taxis filled many of the gaps, and informal vans (so-called “dollar vans”) already carry many passengers across the river to New York each day (because as interstate commerce they cannot be regulated by the Port Authority or either state), I wondered if there might have been other rules that could be relaxed – parking, pickup and dropoff locations, even labor and safety regulations – that might have spurred additional providers to pick up the considerable slack left by the PATH’s destruction.

More prosaically, I wondered if a transportation enterprise zone might have been a way to steer a course through this fall’s squabble between San Francisco-based electronic taxi hailing app Uber and the New York City Taxi and Limousine Commission. The conflict arose over the app’s end-run around the city’s decades-old separation of taxi fleets, designed to ensure a steady supply for street hails by prohibiting yellow cabs from making pre-arranged pickups. A citywide rule change, spurred by a left coast startup’s complaint, seemed premature. But why not pilot it for rides originating in a limited zone, perhaps one that by luck of the geographical draw (say Lower Manhattan south of City Hall) has suffered from a chronic shortage of empty trolling cabs?

Other potential test beds come to mind – Detroit’s buses are an endangered species. Could more lax rules entice some budding entrepreneurs to fill the gaps? New York’s airport taxi dispatching schemes are an over-regulated mess, with numerous shady operators operating at the margins – why not de-criminalize them and work on improving the flow of vehicles through the terminals instead of punishing drivers and passengers alike with archaic queues?

Where else might this work? The enterprise zone idea originated in the 1970s, when British geographer and urbanist Peter Hall proposed that the model of Hong Kong, Singapore and Taiwan might be re-imported to the United Kingdom to spur investment. He argued that “fairly shameless free enterprise” might be used as an “extremely last-ditch solution… only on a very small scale.” (1) People like Paul Romer (here at NYU’s Urbanization Project) have more recently argued, in the developing world at least, for the opposite – that they are a high priority strategy to be implemented expeditiously and on a massive scale. The result is the so-called “charter city”.

I object to charter cities. In the name of anti-corruption they throw the baby out with the bath water. As Rudin Center visiting scholar Greg Lindsay has argued, they work great on paper but are destined to failure when they get entangled in the messy land struggles of developing nations. But targeted deregulation is something worth trying when nothing else works. And enterprize zones are a viable pragmatic response to stagnation and partisan paralysis. As one analysis conducted for the Minnesota state legislature noted “…enterprise zones have received support from both ends of the political spectrum. Professor Hall was a Fabian Socialist. The Thatcher government, on the other end of the political spectrum, enacted legislation adopting the zone program in Britain. Both the Reagan and Clinton administrations proposed zones with the latter succeeding in enacting them. Congressmen Jack Kemp (a conservative Republican) and Robert Garcia (a liberal Democrat) were coauthors of the initial federal proposals.”(2)

Why not give it a shot? What would you propose for a transportation enterprise zone?

References:

  1. Stuart M. Butler, “Enterprise Zones: Pioneering in the Inner City,” Economic Development Tools (1981): 25-41.
  2. “Enterprise Zones: A Review of the Economic Theory and Empirical Evidence”, Don Hirasuna and Joel Michael (Minneapolis, Minnesota: Minnesota House of Representatives Research Department), January 2005, http://www.house.leg.state.mn.us/hrd/pubs/entzones.pdf.