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NHTSA - Vehicle Safety Research

rosaP Repository & Open Science Access Portal

This collection features publications and reports from the National Highway Traffic Safety Administration's (NHTSA) Vehicle Safety Research program. Its mission is to strategize, plan, and execute research initiatives that advance the agency's core goal: reducing motor vehicle crashes, fatalities, and injuries. Resources in this collection reflect research prioritized for its potential to improve highway safety, ensuring direct alignment with Congressional mandates and broader Department of Transportation (DOT) and NHTSA objectives. For more information, visit the NHTSA Vehicle Safety Research.

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Showing 1 - 20 of 261 results
  • NHTSAs DrIIVE Program Phase 2 Summary
    NHTSA's DrIIVE Program: Phase 2 Summary
    Brown, Timothy ;
    Schwarz, Chris
    2026-09-01 | PDF
    First of three parts. Driver impairment from drowsiness, distraction, and alcohol intoxication accounts for a substantial percentage of motor vehicle crashes. NHTSA's Driver Monitoring of Inattention and Impairment Using Vehicle Equipment (DrIIVE) program is aimed at detection and mitigation of driver impairment using data available from inside the ...
  • NHTSAs DrIIVE Program Drowsy Driving Lane Departure Mitigation Countermeasures
    NHTSA's DrIIVE Program: Drowsy Driving Lane Departure Mitigation Countermeasures
    Brown, Timothy ;
    Gaspar, John
    2026-09-01 | PDF
    Second of three parts. Driver impairment from drowsiness, distraction, and alcohol intoxication accounts for a substantial percentage of motor vehicle crashes. NHTSA's Driver Monitoring of Inattention and Impairment Using Vehicle Equipment (DrIIVE) program is aimed at detection and mitigation of driver impairment using data available from inside th ...
  • NHTSAs DrIIVE Program AlcoholImpaired Drowsy and Distracted Driving Detection Algorithms
    NHTSA's DrIIVE Program: Alcohol-Impaired, Drowsy, and Distracted Driving Detection Algorithms
    Brown, Timothy ;
    Schwarz, Chris
    2026-09-01 | PDF
    Third of three parts. Driver impairment from drowsiness, distraction, and alcohol intoxication accounts for a substantial percentage of motor vehicle crashes. NHTSA's Driver Monitoring of Inattention and Impairment Using Vehicle Equipment (DrIIVE) program is aimed at detection and mitigation of driver impairment using data available from inside the ...
  • Variability Study for 50th Percentile Females and Males
    Variability Study for 50th Percentile Females and Males
    Hu, Jingwen ;
    Lin, Yang-Shen
    2026-09-01 | PDF
    The objective of this research is to use parametric human body models (HBMs) to understand how geometric variability among individuals who have the same sex, stature, and body weight may affect the impact responses and injury outcomes, focusing on the midsize male and midsize female populations. We first detailed the methods of quantifying the geom ...
  • Considerations for Vehicles With Automated Driving Systems Seating Preference Study
    Considerations for Vehicles With Automated Driving Systems: Seating Preference Study
    Anderson, G. T. ;
    Klauer, S. G.
    2026-08-01 | PDF
    This VTTI study examined passenger seat belt behavior and seating preference in ADS-DVs with different seating arrangements: conventional, conventional with no manually operated controls, and an unconventional layout with a rear-facing and a forward-facing row of seats. They were recruited under the guise of testing rideshare applications in those ...
  • Comparative Analysis of Impedance and Gas Sensor Diagnostics for LFPGraphite Cell Failures
    Comparative Analysis of Impedance and Gas Sensor Diagnostics for LFP/Graphite Cell Failures
    Torres-Castro, Loraine ;
    Bates, Alex M
    2026-08-01 | PDF
    This research investigated early detection of safety risks of lithium-ion battery packs in electric/hybrid vehicles, including rapid electrochemical impedance spectroscopy, sensing of volatile organic compounds, and hydrogen-gas-sensing technology. These sensors monitored four types of cells and packs for failure markers. It evaluated early detecti ...
  • Exploring Driver Adaptation to L2 Driving Automation Using Existing Naturalistic Driving Data
    Exploring Driver Adaptation to L2 Driving Automation Using Existing Naturalistic Driving Data
    Klauer, S. G. ;
    Turturici, Marissa
    2026-08-01 | PDF
    This research explored the concept of behavioral adaptation - how humans respond to introduction of a new technology that serves a specific need of the driver. Three existing naturalistic driving study databases were analyzed: (a) the L2 Naturalistic Driving Study, (b) the Virginia Connected Corridor Elite Naturalistic Driving Study, and (c) the Ol ...
  • Evaluation of HeavyVehicle Collision Warning Interfaces FollowOn Testing
    Evaluation of Heavy-Vehicle Collision Warning Interfaces - Follow-On Testing
    Tidwell, Scott ;
    Soccolich, Susan A.
    2026-07-01 | PDF
    This follow-on study to a 2015 report evaluated heavy-truck collision warning interfaces focused on the auditory and visual components of a forward collision warning system. This follow-up evaluated nighttime conditions and the implications of delaying the visual component of the alert. Overall, test drivers who received warning alerts responded si ...
  • Conventional Vehicle Driver and Automated Driving SystemEquipped Vehicle Interactions
    Conventional Vehicle Driver and Automated Driving System-Equipped Vehicle Interactions
    Jenness, James W. ;
    Benedick, Amy K.
    2026-06-01 | PDF
    This report describes findings of an on-road experiment that investigated drivers’ behaviors around a vehicle identified as a “self-driving” vehicle. Researchers collected data on public highways using a research vehicle, which on different drives had the outward appearance of either a conventional vehicle or an ADS mockup vehicle. During data coll ...
  • Development of an Alternative Shoulder for the THOR50M
    Development of an Alternative Shoulder for the THOR-50M
    Hagedorn, Alena V. ;
    Carlson, Michael
    2026-04-01 | PDF
    This report describes the design of two alternative shoulders for the THOR-50M crash test dummy because the version of the shoulder currently described in the drawing package has patents associated with it. The two alternative shoulder designs underwent legal review to determine if they would infringe on any patents. After the legal review the shou ...
  • Evaluation of Motorcycle Helmet Test Procedures
    Evaluation of Motorcycle Helmet Test Procedures
    Bendig, Colleen ;
    Wietholter, Kedryn
    2026-04-01 | PDF
    FMVSS No. 218, Motorcycle helmets, specifies minimum performance requirements for helmets used by motorcyclists and other motor vehicle users. FMVSS No. 218 has three performance test types that have remained largely unchanged since it was first published in 1973: an impact attenuation test, a penetration test, and a retention system test. In 2013 ...
  • UNECE Global Technical Regulation No 13 Fire and Closure Tests
    UNECE Global Technical Regulation No. 13 Fire and Closure Tests
    Caseres, Leonardo ;
    Manders, Jacqueline
    2026-02-01 | PDF
    This research evaluated the fire test and primary closure test procedures outlined in the draft United Nations Economic Council for Europe Global Technical Regulation GTR No. 13 and the revised NHTSA test methods, as opposed to examining individual specimens. This report is divided into two parts: Part 1 covers the fire tests where two series of te ...
  • Evaluation and Comparison of Glazing Performance in Impact Tests
    Evaluation and Comparison of Glazing Performance in Impact Tests
    Rains, Corinn ;
    Prasad, Aloke
    2026-02-01 | PDF
    FMVSS No. 205, Glazing materials, uses impact test methods specified in ANSI/SAE Z26.1-1996. NHTSA’s Vehicle Research and Test Center evaluated a subset of ANSI test methods including the 227-g ball, shot bag impact tests, fracture test on tempered glass, and the ball test and dart test on laminated glass. Other research studied potential changes t ...
  • An Evaluation of Light Vehicle Automatic Emergency Brake System Responses to 2Wheeled Road Users
    An Evaluation of Light Vehicle Automatic Emergency Brake System Responses to 2-Wheeled Road Users
    Forkenbrock, Garrick J. ;
    Neer, Arden
    2026-01-01 | PDF
    The research in this report used three test scenarios to evaluate the automatic emergency braking (AEB) performance of four light vehicles when presented with a test surrogate designed to emulate a bicyclist or motorcyclist as the principal target vehicle (POV). Two motorcycle and two bicycle test surrogates, and two lateral overlaps per POV type, ...
  • Early Detection of Thermal Runaway with Advanced Diagnostics
    Early Detection of Thermal Runaway with Advanced Diagnostics
    Torres-Castro, Loraine ;
    Bates, Alex M
    2026-01-01 | PDF
    This research investigated early detection of safety risks of Li-ion battery packs in electric/hybrid vehicles. Early detection technologies included rapid electrochemical impedance spectroscopy, sensing of volatile organic compounds, and H2 gas sensing technology. These sensors were used to monitor cells and packs for failure markers. This researc ...
  • SexBased Differences in Odds of Motor Vehicle Crash Injury Outcomes
    Sex-Based Differences in Odds of Motor Vehicle Crash Injury Outcomes
    Craig, Matthew J ;
    Atwood, Jonathan Richard Edward
    2026-01-01 | PDF
    Several studies have documented the relative risk or odds of injury and fatality for females versus males in motor vehicle crashes, but none have combined the National Automotive Sampling System–Crashworthiness Data System (NASS-CDS) and the Crash Investigation Sampling System (CISS). The study aimed to document the odds of various injury outcomes ...
  • Safety Implications of Potential Advanced Driver Assistance Systems Sensor Degradation
    Safety Implications of Potential Advanced Driver Assistance Systems Sensor Degradation
    Stowe, Loren ;
    Alcazar, Javier
    2025-12-01 | PDF
    The project examined the impact of degradations on advanced driver assistance system (ADAS) perception sensor performance. Sensor degradation refers to the gradual decline in a sensor’s performance over time, resulting in deviations from its nominal or expected output. The scope included permanent and semi-permanent cumulative degradations affectin ...
  • Vehicle Headlamp Aim Angle Test Procedure and Tolerance Research
    Vehicle Headlamp Aim Angle Test Procedure and Tolerance Research
    Voyzey, Nick ;
    Mazzae, Elizabeth N.
    2025-12-01 | PDF
    This report summarizes research conducted to support NHTSA’s response to requirements of the Infrastructure Investment and Jobs Act (IIJA) of 2021 to amend Federal Motor Vehicle Safety Standard No. 108 “to include performance-based standards for vehicle headlamp systems (A) to ensure that headlights are correctly aimed on the road; and (B) requirin ...
  • FMVSS Considerations for Vehicles with Automated Driving Systems Volume 4
    FMVSS Considerations for Vehicles with Automated Driving Systems: Volume 4
    Stowe, Loren ;
    Kizyma, David
    2025-12-01 | PDF
    This report, the fourth in the series, documents continuing work identifying unnecessary/unintended regulatory barriers to self-certification and compliance verification of innovative vehicle designs with automated driving systems that lack manually operated driving controls (steering wheel, brake pedal, etc.). It gives technical translation option ...
    Supporting Files
  • Pedestrian Test Mannequin Radar Crosssection Repeatability Evaluation
    Pedestrian Test Mannequin Radar Cross-section Repeatability Evaluation
    Rossman, Alexander ;
    Kearns, Liam
    2025-12-01 | PDF
    This report documents the repeatability of measuring the radar cross-section of two pedestrian mannequin test surrogates designed to emulate an adult and a child pedestrian. The test methodology discusses using two measurement procedures from the International Organization for Standardization surrogate devices that aided in the calibration offset c ...
1 - 20 / 261
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