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The Systemic Safety User Guide is an update to the Federal Highway Administration’s Systemic Safety Project Selection Tool. The Guide presents a process for incorporating systemic planning into the safety management process. The chapters describe how agencies can identify focus crash types, facility types, and risk factors; screen and prioritize candidate locations using risk; identify […]
This report reviews and assesses driver monitoring systems (DMS) and related technologies for alcoholimpairment detection and SAE International Level 2 partial driving automation systems. For the review oftechnologies to identify driver alcohol impairment, 331 technologies were reviewed. The systems were classifiedas physiology-based, tissue spectroscopy-based, camera-based, vehicle kinematics-based, hybrid, and patent-stage systems. A key focus was […]
Use of DOT-compliant motorcycle helmets was 73.8 percent1 in 2023, not statistically different at the 0.05 level from 66.5 percent in 2022. The 2023 estimate is the highest ever recorded. This result is from the National Occupant Protection Use Survey (NOPUS), the only survey that provides nationwide, probability-based, observed data on motorcycle helmet use in […]
In 2022 there were an estimated 5,930,496 police-reported traffic crashes in which 42,514 people were killed and an estimated 2,382,771 people were injured. Read the full report here.
The Alabama Department of Transportation (ALDOT) is urging drivers to stay alert and slow down for first responders working on Alabama’s roads during Crash Responder Safety Week, Nov. 18-22. Each year, ALDOT and emergency responders statewide join a national effort to improve roadway safety for first responders, from police to EMS and tow truck drivers. […]
This report documents the effort by the Federal Highway Administration (FHWA) Office of Safety and Operations Research & Development and the FHWA Office of Operations to assess current data sources, to compile existing data, to review gaps, and to propose a data collection strategy that will start to quantify the occurrence of responder struck-by crashes. […]
Distracted driving is one of the most dangerous – but common – activities on the road. To help change the culture and create a new social norm, the Governors Highway Safety Association (GHSA) and State Farm® have partnered to develop a new website to help parents and guardians raise a generation of distraction-free, safe road […]
Traffic fatalities in the United States decreased by 1.7 percent from 2021 to 2022 (43,230 to 42,514). The fatality rate per 100 million vehicle miles traveled (VMT) was 1.33 in 2022, ranging from a high of 1.85 to a low of 0.69 among States. Read all findings here.
Summary A statistical projection of traffic fatalities for the first half of 2024 shows an estimated 18,720 people died in motor vehicle traffic crashes, a decrease of about 3.2 percent compared to 19,330 fatalities projected for the first half of 2023 (Early Estimate of Motor Vehicle Traffic Fatalities in 2023, Report No. DOT HS 813 […]
There are two types of PT tendons—bonded or unbonded—depending on the timing of installing the duct, tensioning the strands, and filling the ductwith grout. Injected filler materials afford additional corrosion protection by providing physical barriers to water and air, i.e., oxygen and carbon dioxide.Cementitious grout can also be beneficial, providing a high-pH environment to form […]