safety

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

Variable speed limits effective along Virginia’s foggy highways

By Chris McCahill Fog can create deadly driving conditions, particularly in mountainous areas like those along I-77 near Virginia’s southern border. Fog along the 12-mile stretch of highway has led to hundreds of crashed vehicles and several deaths over the last couple of decades. In 2016, VDOT

New NACTO and USDOT Volpe Center reports call for improved vehicle design to increase safety

By Brian Lutenegger A pair of new reports examines how the design of large vehicles—such as fire trucks, garbage and recycling vehicles, and freight trucks—impacts traffic fatalities in cities. These types of vehicles have a disproportionate impact on urban roadway safety for all users.

Connected cars and data sharing to improve road safety?

By Saumya Jain Wide scale advancements in technology and data sharing has brought about a change in the decision-making process of many sectors. The healthcare, finance, and entertainment industries all depend on a steady feed of information in order to make business decisions. But data sharing

85th percentile speed limits: “Fast, Furious & Fatal”

By Eric Sundquist In 2017, when the City of Los Angeles reviewed operating speeds across its system, it ended up raising speed limits on 89 miles of roadway. Why would a city with a Vision Zero goal raise speed limits in corridors with a history of crashes? Because of a California statute that

Lowering speed limits can reduce crashes

By Chris McCahill Speed limits are often based on observed 85th percentile free flow speeds. Setting them lower, even to address safety concerns, can be difficult once engineering recommendations have been made. A new study, however, bolsters the case for doing so by showing that setting limits