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TRB’s National Cooperative Highway Research Program (NCHRP ) Web-Only Document 220: Estimating the Life-Cycle Cost of Intersection Designs describes the Life-Cycle Cost Estimation Tool (LCCET). The LCCET spreadsheet allows users to compare alternative intersection designs based on initial construction costs, ongoing maintenance and operations costs, operational efficiencies for a variety of modes, safety effects, and […]
The purpose of this study was to estimate the reduction in serious injuries and deaths that could potentially be achieved through investment in highway infrastructure safety measures and to estimate the level of investment required to achieve those benefits. The United States faces a major challenge in improving the traffic safety performance of our road […]
This is a publication of the Federal Highway Administration (FHWA) that reports on safety developments from across the country. In This Issue: HSIP 2015 National Summary Report DDSA: Performing A Health Check-Up On Your Roadways Data Visualization: Telling the DataStory Express Yourself! Post a Road Diet Selfie Today Honolulu Uses Road Diets to Advance Complete […]
This report seeks to document ways to reduce crashes and fatalities from wrong-way crashes, horizontal curves, intersections, and J-turns. Report No.: MoDOT cmr 16-013 The Missouri Department of Transportation (MoDOT) sponsored this research project to investigate treatments that can reduce crashes and fatalities to further the goal of the Toward Zero Deaths (TZD) initiative. One […]
“I think the profile has gotten higher and higher and the feelings of the public are much higher than it used to be,” said Mike Lee, chairman of the Mobile Area Chamber of Commerce’s “Build the Bridge” Coalition about the need for an $850 million bridge over the Mobile River and accompanying expansion of the […]
The new flashing yellow arrow means turns are permitted, BUT you must first yield to oncoming traffic and pedestrians, then turn with caution. A flashing yellow arrow signal offers a safer, more efficient way to handle traffic turning left at busy intersections. IT’S SAFER: Research shows drivers make fewer mistakes with the new signals than […]
State and local highway agencies are implementing data-driven practices to successfully address roadway safety planning, implementation, and evaluation challenges. These practices have the capacity to reduce staff time, save money and other resources – with the goal of reducing roadway fatalities and serious injuries. The FHWA Office of Safety is collecting and making these practices […]
On July 6, 2012, the President signed into law the Moving Ahead for Progress in the 21st Century Act (MAP-21) (P.L. 112- 141), which created a Special Rule for Older Drivers and Pedestrians. The Fixing America’s Surface Transportation (FAST) Act (P.L. 114-94) continued that Special Rule. The purpose of this guidance is to clarify: The […]
TRB’s second Strategic Highway Research Program (SHRP 2) Report S2-L07-RR-3: Further Development of the Safety and Congestion Relationship for Urban Freeways explores the relationship between safety and congestion and tests the relationship among various nonrecurrent congestion scenarios.
TRB’s National Cooperative Highway Research Program (NCHRP) Report 790: Factors Contributing to Median Encroachments and Cross-Median Crashes investigates the factors that contribute to median-related crashes and identifies design treatments and countermeasures that can be applied to improve median safety on divided highways.
