An official website of the United States government.
Travel Volume Trends
The U.S. Department of Transportation’s Federal Highway Administration releases a monthly report containing traffic data comparing each State. They host traffic data from as far back as 1970. You can find out more Here
Tag: USDOT
Safety Evaluation of Wet Reflective Pavement Markers
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 […]
Mapping to MMUCC: A Process for Comparing Police Crash Reports and State Crash Databases to the Model Minimum Uniform Crash Criteria
Report No.: DOT HS 812 184 The Model Minimum Uniform Crash Criteria (MMUCC) Guideline, Fourth Edition (2012), is a voluntary guideline designed to help States determine what crash data to collect on their police accident reports (PARs) and what data to code and carry in their crash databases. The MMUCC Guideline does not provide States […]
National Telephone Survey of Reported and Unreported Motor Vehicle Crashes
Report No.DOT HS 812 183 NHTSA publishes crash statistics based on police accident reports, but many crashes are never reported by the police. In 1981 NHTSA sponsored a telephone survey to estimate the incidence of unreported crashes. That survey estimated 47 percent of crashes go unreported. In 2008 NHTSA paid for an updated survey, reported […]
Evaluation of Pavement Safety Performance
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 […]
Modeling and Predicting Crash Frequency at Rural Intersections
Report No: SWUTC/15/600451-00077-1 Safety at intersections is of significant interest to transportation professionals due to the large number of possible conflicts that occur at those locations. In particular, rural intersections have been recognized as one of the most hazardous locations on roads. However, most models of crash frequency at rural intersections, and road segments in […]
NHTSA’s Review of the National Automotive Sampling System: Report to Congress
DOT HS 812 128 The National Highway Traffic Safety Administration’s traffic crash data provides the underpinning for informed highway safety decision-making at the Federal, State, and local levels. Accurate, accessible, timely, and standardized data allows decision-makers to: determine the primary factors related to the sources of crashes and their outcomes develop and evaluate effective safety […]
FHWA Oversees Bridge Safety
Report Number: ST-2015-027 FHWA established a data-driven, risk-based approach to oversee States’ compliance with the NBIS, which its Division Offices have effectively implemented. However, we identified gaps in three areas of FHWA guidance that could limit the program’s long-term success. First, FHWA established the Assessment Reporting Tool (ART) to serve as a central repository of […]
FHWA Oversees Bridge Safety
Report Number: ST-2015-027 FHWA established a data-driven, risk-based approach to oversee States’ compliance with the NBIS, which its Division Offices have effectively implemented. However, we identified gaps in three areas of FHWA guidance that could limit the program’s long-term success. First, FHWA established the Assessment Reporting Tool (ART) to serve as a central repository of […]
Most Common Types of Crashes by Work Zone Area
Trucking Safely Through Work Zones