News

A method for quantifying risks imposed on cyclists while sharing road with motor vehicles

By Saumya Jain Keeping vehicle occupants and pedestrians safe via engineering standards and street warrants is common practice around the world. But in spite of the growing level of support for bicycling for both commuting and recreation, bike facility design standards are rarely backed by

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