safety

Dense areas are safer but road design is critical

By Chris McCahill Dense development patterns offer important safety benefits, according to new research from the University of Pennsylvania, but high-speed roads in dense suburban centers are deadly for pedestrians. This new study confirms what others have already shown—that attention to

A troubled marriage between safety research and practice

By Chris McCahill Road design often is not as science-based as we like to think, according to a new study in Accident Analysis & Prevention. Years of biased or misreported research findings inform many of the design practices that are common today. And while there is plenty to be learned from

Safety and speed management: Speeding into a crash?

By Saumya Jain According to a recent study conducted by the Insurance Institute for Highway Safety (IIHS), in the past 25 years 37,000 additional people have died due to increased speed limits in the United States. However, Canada is taking a very different approach to speed, as detailed in the

Some drivers are more distracted by phones than others

By Michael  Brenneis With vehicle-related fatalities exceeding 40,000 annually, the search is on to isolate causes. On the distraction front, the driver behavior analytics company Zendrive has released its 2018 Distracted Driving Snapshot. The study looks at 4.5 million Zendrive users, driving

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