An official website of the United States government.
Here's how you know
The .gov means it's official.
Federal government websites always use a .gov or .mil domain. Before sharing sensitive information online, make sure you’re on a .gov or .mil site by inspecting your browser's address (or "location") bar.
This site is also protected by an SSL (Secure Sockets Layer) certificate that's been signed by the U.S. government. The https:// means all transmitted data is encrypted — in other words, any information or browsing history that you provide is transmitted securely.
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.
France is ahead of the curve. The country is among the world’s leaders in circular intersections or roundabouts. Every 45th intersection in France is a roundabout, whereas the United States lags far behind with one per 1,118 intersections. That’s a real problem because researchers say roundabouts can save lives. According to data by the American […]
Peter Albrecht, WKRG 5 News While some drivers don’t think much of the gas tax hike, there are plenty in the local business community who fully support the idea. As Mobile’s Container Terminal continues to thrive, more trucks are going on the area roads – 2,000 a day now and likely growing. “The number of […]
The Federal Highway Administration (FHWA) established the Development of Crash Modification Factors (DCMF) program in 2012 to address highway safety research needs for evaluating new and innovative safety strategies (improvements) by developing reliable quantitative estimates of their effectiveness in reducing crashes. The ultimate goal of the DCMF program is to save lives by identifying new […]
Learn about a Naturalistic Driving Study organized by Jennifer Macellaro.
Report No. FHWA-OR-RD-16-05 There is a need to better understand the different risks associated with factors and features along low-volume roads. In understanding where risks are present in the system, a proactive approach may be employed to make improvements that can translate into reduced (or prevented) crashes in the future. Overall, six main tasks were […]
SPR 756, Report No. FHWA-OR-RD-16-03, Oregon Department of Transportation This Final Report documents a research effort to develop improved safety performance functions (SPFs) for signalized intersections in the State of Oregon. In particular, this research effort focused on the relationship between the physical characteristics of the signalized intersection, the crash history at each location, and […]
Peter Albrecht, WKRG 5 Passing a long-range Federal Transportation Bill is crucial to plans to build a new Interstate-10 bridge across the Mobile River.
FHWA Publication No.: FHWA-HRT-14-065 The intent of this study was to isolate the effects of various low-cost pavement treatments on roadway safety. This was a retrospective study of pavement safety performance, looking back at crash data before and after treatments were installed. Both flexible and rigid pavement treatments were analyzed, with the majority typically used […]