States are increasingly moving past the outdated “85th percentile rule” for setting speed limits, weighing factors other than the observed traffic flow in those calculations. The AP recently highlighted Ohio among a wave of efforts to consider roadway context and the presence of walkers and bikers in allowing lower speeds to ensure safer roads. For states looking to follow suit, a newly released report from the Center for Pedestrian and Bicyclist Safety offers states a data-driven, objective framework to set speed limits based on roadway context, not just vehicle movement.
Safety
Emotional perceptions can be a tool for predicting street safety
How a street feels can matter just as much as how it’s physically built. A new study shows that emotional perceptions about whether a street seems inviting, secure, or rundown can help explain safety for people walking or biking—a reminder that planners should think beyond conventional design standards. Road designers should also consider the character and aesthetics of the spaces they create.
Washington State’s new shared streets law could set an example for pedestrian-friendly design nationwide
Washington recently became the first state in the country to authorize “shared streets,” a shift that could reshape how people move in cities across the state and serve as a model nationwide. The measure gives walkers and bikers priority, slows vehicle traffic to 10 miles per hour, and removes jaywalking restrictions. Washington’s law, signed in April, is a major step toward safer, people-centered streets.
Low-stress roads and bike lanes improve safety, not just comfort
Low stress roads make biking more comfortable, especially for people who are more risk-averse. But do they make biking safer? A new study suggests they do, countering concerns from some transportation officials that these facilities might encourage unsafe riding.
Complex urban streets encourage safer driving
Reducing excessive speeding is one of the most effective ways to improve road safety—especially where people are walking or biking. While lowering speed limits and adding traffic calming measures help, growing research highlights the value of self-explaining streets that give drivers constant cues to slow down.
Pedestrian deaths aren’t accidents, they’re policy failures
Pedestrian deaths are rising faster in the U.S. than in any other high-income country. A decade-long surge, up 50%, has made the U.S. the most dangerous place to walk among 27 peer nations. Many experts view these deaths not as random accidents but as preventable tragedies that reflect deeper policy failures in transportation, infrastructure, and public safety.
Involving walkers and bikers in design can make streets safer
Including road users in a participatory “co-design” process can result in better safety interventions than those made by professional engineers alone, according to a new study. Participatory design incorporates the needs and views of end-users of what’s being designed—in this case, pedestrian crossings used by workers and students.
Want to respond to crashes quicker? AI could help
State transportation agencies are cautiously dipping their toes into the waters of “artificial intelligence” and “machine learning” to find applications in the transportation field. There are many potential uses, according to a new report, including opportunities to track assets like crosswalks, and to clear traffic incidents faster, which could lessen the need for major capacity investments. Agencies have also identified some lessons and pitfalls of the technology as they pilot new tools.
The scramble for larger vehicles is putting more Americans’ lives in danger
As vehicles grow ever larger in the United States, their “safety” benefits for drivers diminish while the danger for pedestrians and other drivers rises. From SUVs to oversized pickup trucks, the shift toward heftier cars has become normal for many drivers seeking a sense of security. But beyond a certain weight, these vehicles offer no extra safety to drivers and make the roads more hazardous for others. Removing just the heaviest vehicle fleet could save many lives on the road.
DOTs can strengthen local relationships through quick-build street safety programs
Many local community groups have ideas for simple infrastructure upgrades that would improve street safety in their neighborhoods — but without official sign-off from departments of transportation, those ideas may never get a chance to be tested. Some DOTs have created official permitting processes for short-term “quick-build” demonstration projects, where these local groups can test their ideas for safer streets with temporary materials while adhering to official design standards.