safety

TDOT puts Complete Streets policy into practice

By Rayla Bellis The Tennessee Department of Transportation adopted a “multimodal access” policy in 2015, but recognized that the policy alone would have limited impact without a more comprehensive approach to improving safety for everyone. Since then, TDOT has taken steps to update

Maryland designs for calmer traffic on urban highway

By Michael Brenneis Arterials bounded by urban or suburban development cease to function exclusively as throughways, and are good candidates for reconfiguration to support the land uses that surround them. As more bicyclists and pedestrians use a corridor, conflict with motor vehicles and

Real-time crash prediction models: State-of-the-art, design pathways and ubiquitous requirements (Accident Analysis and Prevention, 2019)

With the advancements in artificial intelligence, and multiple studies being focused towards developing real-time crash prediction models, the concept of a proactive safety management system has become very close to reality. The linked study conducts an extensive review of the existing real-time

Yes, communities can be sued for their unsafe streets

By Robbie Webber Cities can be sued if they don’t provide a safe environment for pedestrians or bicyclists. Two cases in recent years—including one before the New York Court of Appeals (New York’s highest court)—prove that. But winning a lawsuit against a city is quite uncommon, and the

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

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

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