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.
This document reports the results of a study to determine on average over a large number of cases, which driver is more apt to be at fault in two-vehicle crashes that involve two types of drivers (e.g., large truck and car; car and pedestrian, car and bicycle, car and motorcycle, etc.). This information is essential […]
This document presents the results of a comparison of ID crashes compared to non-ID crashes over a recent three year period (FY2015-2017). An over-represented value of an attribute is a situation found where that attribute has a greater share of ID crashes than would be expected if it were the same as that same attribute […]
The high level analysis of vehicles in general for vehicle defects showed a high correlation of the defect type and the vehicle type, which is expected since certain defects apply only to trucks. The Causal Unit analysis given immediately below establishes that: (1) the most over-represented vehicles are heavy trucks (as we might expect), but […]
This section will attempt to stay away from the typical traditional safety recommendations in order to concentrate on those discovered from the research that is summarized in the next section. This does not mean that the safety practices typically taught as standard large truck training are not important. They are important and should be given […]
The goal of this problem identification is to assure that the restraint enforcement program considered by the state throughout 2019 is completely evidence-based, the evidence being derived from past data obtained from crash records. Changes from what appeared in the previous year HSP will only be noted in cases where they are considered to be […]
Most Counter-Intuitive Findings Weather Conditions and Speed Lowest % speed related fatalities occur in rain Speed increases wet pavement crash % by a factor of 3.5 Impaired Driving and Speed DUI alcohol use increases 69% for speed crashes Reported drug use increases 44% for speed crashes Age and Speed Highest frequency ages, in order: 18, […]
Summary of Recommendations Major PI&E Effort Consequences of the current situation The mounting death and injury toll Everyone think they are the exception Focus of effort: no exceptions – no use of cell phones by driver Like smoking, it must become socially unacceptable Drivers need understanding of cognitive effects of any and all cell use […]
This report has the objective of presenting a problem identification that was done on motorcycle (MC) crashes with the goal of establishing and improving countermeasures for reducing these crash frequencies and severities in the future. The IMPACT displays are based on a comparison of two subsets, both restricted to multiple-vehicle crashes, and both of which […]
The comparisons in this document are between those crashes that were caused by senior drivers (age 65 or older) compared to all other crashes. This enabled the characteristics for these crashes to surface so that traffic safety professionals can determine their magnitude and optimize senior driver safety programs to place emphasis on the most important […]
Google’s self-driving car spinoff is finally ready to try to profit from its nearly decade-old technology. Waymo is introducing a small-scale ride-hailing service in the Phoenix area that will include a human behind the wheel in case the robotic vehicles malfunction. The service debuting Wednesday marks a significant milestone for Waymo, a company that began […]