Latest News

Smartphone app promises crowdsourced road roughness index and fuel efficient routing

By Michael Brenneis The ability of smartphones to collect reams of data is significantly expanding crowdsourcing opportunities. An accelerometer is used by smartphones to change screen orientation or count footfalls, among other uses. But it is also capable of recording the force of

To meet clean energy goals, everyone will need better transportation options

By Chris McCahill The proposed Green New Deal, like many local green energy and climate action plans across the country, aspires to eliminate greenhouse gas emissions. As SSTI’s Beth Osborne and other writers have pointed out, transportation presents some of the biggest challenges. Meeting

ITE takes on parking minimums and manuals

By Saumya Jain Once considered a pure public good, parking is now known as a public problem as well. Among other drawbacks, it occupies valuable land and curb space, and it encourages auto trips and emissions, in part by spreading out destinations so that non-auto travel is difficult. The

Study: Carlessness drives incomes down

By Chet Edelman New York City has its share of income disparity problems. However, in terms of transportation, at least parts of New York stand out as places that live up to the idea of providing equity through multimodal choice. A new paper by David King of Arizona State University and two

NTSB priority: Roadway speed management

By Eric Sundquist When it comes to speed, delay and congestion usually get more attention than the flip-side problem of excessive speed. Under statute, for example, the federal government requires agencies to track speed reliability and delay. There is no similar requirement for tracking

Washington, DC, improves parking and traffic with “asset-lite” pricing program

By Chris McCahill Washington, DC, just released the results from its four-year pilot program, parkDC, which applied dynamic pricing for on-street parking in Penn Quarter and Chinatown. Based on its success, the city is now working to expand the program beyond the pilot area. The program, which

New study finds that road closures can alleviate congestion in dense urban areas

By Chet Edelman Historically, transportation policy addressing vehicle congestion has entailed increasing road capacity—whether it be through widening existing roads or building new roads altogether. However, research consistently reveals that these policies have the opposite effect. Rather

Can road pricing be used to make LA’s transportation system more equitable?

By Rayla Bellis California nonprofit TransForm and the Natural Resources Defense Council (NRDC) recently released a new report and toolkit with guidance for bringing equity into the implementation of congestion pricing. While conversations about congestion pricing and equity often focus on

Evidence from Toronto: Well-designed bike lanes encourage cycling, improve safety for all

By Michael Brenneis People need no encouragement to use transportation networks that connect them to the places they need to be, if the networks are comfortable, convenient, and safe to use. This has certainly been the case for the use of motor vehicles on North American roads, with the possible

Speeding contributes to one-quarter of fatalities, but remains culturally acceptable

By Michael Brenneis As a vehicle’s speed increases, it’s kinetic energy increases exponentially. Should a vehicle crash, its kinetic energy is transferred, often catastrophically, into the structure of the vehicle, its occupants, other vehicles, the surrounding built environment, or nearby

As crashes rise, distracted driving has (mostly) stayed the same

By Chris McCahill Are cell phones to blame for rising traffic deaths? We have looked for evidence before and came up empty-handed. A new study from the Insurance Institute for Highway Safety suggests that drivers are just as distracted now as they were a few years ago, but some are swapping old

Dangerous by Design 2019: Roads aren’t getting safer for pedestrians

By Rayla Bellis Last week, Smart Growth America released the latest edition of Dangerous by Design, a biennial report examining trends in pedestrian fatalities. The report looks at changes in the occurrence of pedestrian deaths nationwide overall and ranks states and metropolitan regions

Study: Transit supporters in LA unlikely to use transit themselves

By Chet Edelman It may sound like an Onion headline, but a new study out of UCLA finds that while a majority of Los Angeles County voters may support transit expansion, they express little desire to ride transit themselves in the future. The study found that voters appear to want transit for

Was 2018 the year of peak ICE?

By Eric Sundquist With slowing growth in light-duty automotive markets overall, and an increasing share of electric vehicles within that market, last year may have been the high point for internal combustion engines. Such is the conclusion drawn by Financial Times, based on interviews with and

The hype cycle of autonomous vehicles

By Rayla Bellis Several recent articles have addressed a significant shift in public perception toward autonomous vehicles over the course of 2018. In late 2017, industry leaders like Waymo, Uber, and Tesla were testing fully driverless cars and preparing for commercial launches of driverless