The US Transportation Collection consists of documents from across all transportation modes with specific focus on research reports from US DOT, state DOTs, and other transportation organizations.
Bookmark this collection: https://rosap.ntl.bts.gov/collection_ust or https://doi.org/10.21949/1530857.
United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis
2024-04-01
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This is the updated and revised Fatality Analysis Reporting System (FARS) Analytical User’s Manual for the period 1975 to 2022. This manual presents the evolution of FARS coding from inception through present. It includes the data elements that are contained in FARS and other useful information that will enable the users to become familiar with the
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United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis (2024). Fatality Analysis Reporting System Analytical User’s Manual, 1975-2022 (Report No. DOT HS 813 556). United States. Department of Transportation. National Highway Traffic Safety Administration. https://rosap.ntl.bts.gov/view/dot/78035
United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis. Fatality Analysis Reporting System Analytical User’s Manual, 1975-2022. Report no. DOT HS 813 556. United States. Department of Transportation. National Highway Traffic Safety Administration, 2024. https://rosap.ntl.bts.gov/view/dot/78035.
United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis Fatality Analysis Reporting System Analytical User’s Manual, 1975-2022. United States. Department of Transportation. National Highway Traffic Safety Administration, 2024, Report no. DOT HS 813 556, ROSA P. https://rosap.ntl.bts.gov/view/dot/78035.
Jay’s Majic Mud (JMM) was investigated for possible use as either a rapid-set patching material or as a potential new alternative, novel, thin-bonded overlay system. In its current pre-packaged form, JMM does not meet the requirements for rapid-set material use, nor does it meet the permeability requirements needed for use as a standalone (neat) mi
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McArtor, E., Broxterman, B., Mayer, S. J., & Wadley, D. L. (2024). Product Material Investigation and Evaluation of Jay’s Majic Mud for Use in KDOT Construction and Maintenance Applications (Report No. KS-24-01). Kansas Department of Transportation. Bureau of Research. https://rosap.ntl.bts.gov/view/dot/74127
McArtor, Erinn, Brandon Broxterman, Sally J Mayer, and Dan L Wadley. Product Material Investigation and Evaluation of Jay’s Majic Mud for Use in KDOT Construction and Maintenance Applications. Report no. KS-24-01. Kansas Department of Transportation. Bureau of Research, 2024. https://rosap.ntl.bts.gov/view/dot/74127.
McArtor, Erinn, et al. Product Material Investigation and Evaluation of Jay’s Majic Mud for Use in KDOT Construction and Maintenance Applications. Kansas Department of Transportation. Bureau of Research, 2024, Report no. KS-24-01, ROSA P. https://rosap.ntl.bts.gov/view/dot/74127.
This research evaluates the performance of non-intrusive detection technologies (NITs) for traffic signals in Minnesota. Prior work shows that while no single NIT device performs best in all situations, under specific circumstances, some NIT devices consistently outperform others. Our goal in this research is to find which NIT devices perform bette
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Grossman, M., Jiao, Y., Hu, H., Hourdos, J., & Chiang, Y. Y. (2024). Performance Evaluation of Different Detection Technologies for Signalized Intersections in Minnesota (Report No. MN 2024-10). Minnesota. Department of Transportation. https://rosap.ntl.bts.gov/view/dot/75580
Grossman, Malcolm, Yuankun Jiao, Haoji Hu, John Hourdos, and Yao-Yi Chiang. Performance Evaluation of Different Detection Technologies for Signalized Intersections in Minnesota. Report no. MN 2024-10. Minnesota. Department of Transportation, 2024. https://rosap.ntl.bts.gov/view/dot/75580.
Grossman, Malcolm, et al. Performance Evaluation of Different Detection Technologies for Signalized Intersections in Minnesota. Minnesota. Department of Transportation, 2024, Report no. MN 2024-10, ROSA P. https://rosap.ntl.bts.gov/view/dot/75580.
Posted speed limits (PSLs) are a highly complex issue involving engineering, human factors, and political and societal concerns. On a national level, recent research along with calls to change how speed limit are set, especially for city streets, have generated extensive discussion on future speed limit setting procedures. Within this TxDOT project
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Fitzpatrick, K., Venglar, S. P., Das, S., Pratt, M. P., Park, E. S., Avelar, R., & Le, M. (2024). Speed Limits in Texas (Report No. FHWA/TX-23/0-7049-R1). Texas A&M Transportation Institute. https://rosap.ntl.bts.gov/view/dot/74591
Fitzpatrick, Kay, Steven P. Venglar, Subasish Das, Michael P. Pratt, Eun Sug Park, Raul Avelar, and Minh Le. Speed Limits in Texas. Report no. FHWA/TX-23/0-7049-R1. Texas A&M Transportation Institute, 2024. https://rosap.ntl.bts.gov/view/dot/74591.
Fitzpatrick, Kay, et al. Speed Limits in Texas. Texas A&M Transportation Institute, 2024, Report no. FHWA/TX-23/0-7049-R1, ROSA P. https://rosap.ntl.bts.gov/view/dot/74591.
For the Kentucky Transportation Cabinet’s (KYTC) Department of Highways, project development encompasses all the work activities needed to move a transportation project from concept and project initiation to construction letting. Developing projects efficiently requires the adoption of sound project management practices. Although KYTC has a long tr
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Asher, Jill, Keith Caudill, Travis Thompson, Jeff Jasper, Chris VanDyke, Samantha Wright, Bryan Gibson, Pam Clay-Young, and Candice Wallace. Guidebook for Project Management. Report no. KTC-24-23. Kentucky Transportation Cabinet, 2024. https://doi.org/10.13023/ktc.rr.2024.23.
Asher, Jill, et al. Guidebook for Project Management. Kentucky Transportation Cabinet, 2024, Report no. KTC-24-23, ROSA P. https://doi.org/10.13023/ktc.rr.2024.23.
United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology
2024-04-01
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OST-R Research Roundup
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News from across OST-R and its research community.
United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology (2024). OST-R Research Roundup Newsletter: April 2024. United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology. https://rosap.ntl.bts.gov/view/dot/76651
United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology. OST-R Research Roundup Newsletter: April 2024. United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology, 2024. https://rosap.ntl.bts.gov/view/dot/76651.
United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology OST-R Research Roundup Newsletter: April 2024. United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology, 2024, ROSA P. https://rosap.ntl.bts.gov/view/dot/76651.
This study reviews Kentucky’s vehicle licensing and registration program, evaluates methods of motor vehicle title fraud, examines current anti-fraud mechanisms in Kentucky, reports on vehicle titling and anti-fraud efforts in other states, assesses Ohio’s vehicle inspection program, and develops a proposal for a new Kentucky rebuilt title inspecti
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Brown, M., Martin, A., Koo, J., & Walton, J. (2024). Reducing Vehicle Licensing and Titling Fraud (Report No. KTC-24-24). University of Kentucky Transportation Center. https://doi.org/10.13023/ktc.rr.2024.24
Brown, Mallory, Andrew Martin, Jeeyen Koo, and Jennifer Walton. Reducing Vehicle Licensing and Titling Fraud. Report no. KTC-24-24. University of Kentucky Transportation Center, 2024. https://doi.org/10.13023/ktc.rr.2024.24.
Brown, Mallory, et al. Reducing Vehicle Licensing and Titling Fraud. University of Kentucky Transportation Center, 2024, Report no. KTC-24-24, ROSA P. https://doi.org/10.13023/ktc.rr.2024.24.
The primary objective of this research was to evaluate pavement damage that may occur during the pavement milling process, which is critical to the overlay design and performance of asphalt pavements. To achieve this purpose, the most common milling practices in Indiana were implemented on several trial sections and various damage characterization
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Cho, S., Moncada, O. A., Francioso, V., & Haddock, J. E. (2024). Performance-Related Specifications for Pavement Milling (Report No. FHWA/IN/JTRP-2024/18). Purdue University. Joint Transportation Research Program. https://rosap.ntl.bts.gov/view/dot/77791
Cho, Seonghwan, Oscar Andrés Moncada, Vito Francioso, and John E. Haddock. Performance-Related Specifications for Pavement Milling. Report no. FHWA/IN/JTRP-2024/18. Purdue University. Joint Transportation Research Program, 2024. https://rosap.ntl.bts.gov/view/dot/77791.
Cho, Seonghwan, et al. Performance-Related Specifications for Pavement Milling. Purdue University. Joint Transportation Research Program, 2024, Report no. FHWA/IN/JTRP-2024/18, ROSA P. https://rosap.ntl.bts.gov/view/dot/77791.
With noticeable staff turnover in certain employment classifications, NJDOT engaged Cambridge Systematics (CS) to conduct the Compensation Scan and Retention Study. This scope of work is focused on researching and collecting information on compensation and retention of employees utilized by municipalities and county transportation agencies, private
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Gaines, D. (2024). NJDOT Compensation Scan and Retention Study [Technical Summary] (Report No. NJ-2024-002). New Jersey. Department of Transportation. Bureau of Research. https://rosap.ntl.bts.gov/view/dot/74627
Gaines, Danena. NJDOT Compensation Scan and Retention Study [Technical Summary]. Report no. NJ-2024-002. New Jersey. Department of Transportation. Bureau of Research, 2024. https://rosap.ntl.bts.gov/view/dot/74627.
Gaines, Danena NJDOT Compensation Scan and Retention Study [Technical Summary]. New Jersey. Department of Transportation. Bureau of Research, 2024, Report no. NJ-2024-002, ROSA P. https://rosap.ntl.bts.gov/view/dot/74627.
Underlying most VISSIM™ calibration is the adjustment of the Wiedemann car following parameters used to simulate vehicle behavior within the model. The Wiedemann models directly influence a roadway segment’s capacity, saturation flow, density, etc. Several key features were identified as part of this study. Through the project a calibration approac
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Supporting Files
Hunter, M., Rodgers, M. O., Saracco, M., & Pizano, A. (2024). VISSIM™ Simulation Calibration Procedure (Report No. FHWA-GA-24-2226). Georgia. Department of Transportation. Office of Performance-Based Management & Research. https://rosap.ntl.bts.gov/view/dot/74243
Hunter, Michael, Michael O. Rodgers, Matteo Saracco, and Abraham Pizano. VISSIM™ Simulation Calibration Procedure. Report no. FHWA-GA-24-2226. Georgia. Department of Transportation. Office of Performance-Based Management & Research, 2024. https://rosap.ntl.bts.gov/view/dot/74243.
Hunter, Michael, et al. VISSIM™ Simulation Calibration Procedure. Georgia. Department of Transportation. Office of Performance-Based Management & Research, 2024, Report no. FHWA-GA-24-2226, ROSA P. https://rosap.ntl.bts.gov/view/dot/74243.
Deep foundations are typically considered when subsurface soil conditions are weak and unable to safely support superstructure loads. In these cases, pile foundations are used to carry superstructure loads and transfer them deep into the ground. Therefore, an accurate assessment of pile resistance is crucial for the safe and economical design of pi
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Abu-Farsakh, M. Y., Rupnow, T., & Zhang, Z. �. (2024). Statewide Calibration of CPT Direct Design Methods Using Static Load Test Data: Research Project Capsule [24-3GT] (Report No. 24-3GT). Louisiana Transportation Research Center. https://rosap.ntl.bts.gov/view/dot/74198
Abu-Farsakh, Murad Y., Tyson Rupnow, and Zhongjie “Doc” Zhang. Statewide Calibration of CPT Direct Design Methods Using Static Load Test Data: Research Project Capsule [24-3GT]. Report no. 24-3GT. Louisiana Transportation Research Center, 2024. https://rosap.ntl.bts.gov/view/dot/74198.
Abu-Farsakh, Murad Y., et al. Statewide Calibration of CPT Direct Design Methods Using Static Load Test Data: Research Project Capsule [24-3GT]. Louisiana Transportation Research Center, 2024, Report no. 24-3GT, ROSA P. https://rosap.ntl.bts.gov/view/dot/74198.
Accurately predicting bat use of bridges is an important need for planning of bridge repair and maintenance. However, less than 1% of bridges in Ohio have been surveyed for bats, limiting the inferences that can be drawn from existing data and modelling tools. We developed a method for passive camera surveys of bat use of bridges and reevaluated OD
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Perez-Jimenez, J., Koch, J., Johnson, J. S., & Kropczynski, J. N. (2024). GIS Tools to Identify Bridges with Bats [Fact Sheet]. Ohio. Department of Transportation. https://rosap.ntl.bts.gov/view/dot/86682
Perez-Jimenez, Janette, Jacob Koch, Joseph S Johnson, and Jess N Kropczynski. GIS Tools to Identify Bridges with Bats [Fact Sheet]. Ohio. Department of Transportation, 2024. https://rosap.ntl.bts.gov/view/dot/86682.
Perez-Jimenez, Janette, et al. GIS Tools to Identify Bridges with Bats [Fact Sheet]. Ohio. Department of Transportation, 2024, ROSA P. https://rosap.ntl.bts.gov/view/dot/86682.
This research studied the relationship between removal methods used to remove pavement markings and driver confusion when encountering ghost lines. The study included field based and driver video experiments. Video data was collected at five locations in Oregon to examine the frequency with which drivers did not follow the correct markings when enc
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Hurwitz, D., Jashami, H., Weber, J., Monsere, C., Kothuri, S., & Yates, E. (2024). Removing Residual Lane Markings to Reduce Driver Confusion (Report No. FHWA-OR-RD-24-07). Oregon. Dept. of Transportation. Research Section. https://rosap.ntl.bts.gov/view/dot/74031
Hurwitz, David, Hisham Jashami, Jane Weber, Chris Monsere, Sirisha Kothuri, and Elizabeth Yates. Removing Residual Lane Markings to Reduce Driver Confusion. Report no. FHWA-OR-RD-24-07. Oregon. Dept. of Transportation. Research Section, 2024. https://rosap.ntl.bts.gov/view/dot/74031.
Hurwitz, David, et al. Removing Residual Lane Markings to Reduce Driver Confusion. Oregon. Dept. of Transportation. Research Section, 2024, Report no. FHWA-OR-RD-24-07, ROSA P. https://rosap.ntl.bts.gov/view/dot/74031.
The primary metric for measuring electric vehicle (EV) adoption growth is new car sales. However, to enable mass market penetration, EV adoption in the used car market will play a crucial role. The used vehicle market is relatively understudied or has been studied mostly for specific regions. This project analyzed US national consumer expenditure s
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Chakraborty, D., Konstantinou, T., Lopez, J. B. G., & Gil, T. (2024). Assessing the Total Cost of Ownership of Electric Vehicles Among California Households (Report No. UC-ITS-RIMI-3C). University of California Institute of Transportation Studies. https://doi.org/10.7922/G22B8WC3
Chakraborty, Debapriya, Theodora Konstantinou, Julia Beatriz Gutierrez Lopez, and Tal Gil. Assessing the Total Cost of Ownership of Electric Vehicles Among California Households. Report no. UC-ITS-RIMI-3C. University of California Institute of Transportation Studies, 2024. https://doi.org/10.7922/G22B8WC3.
Chakraborty, Debapriya, et al. Assessing the Total Cost of Ownership of Electric Vehicles Among California Households. University of California Institute of Transportation Studies, 2024, Report no. UC-ITS-RIMI-3C, ROSA P. https://doi.org/10.7922/G22B8WC3.
The three main objectives of this research were to identify bridge segment geometries (width to length ratios) susceptible to this type of distortion, develop best practices to mitigate transverse bowing of match-cast bridge segments during production, and to determine which practical curing mitigation measures are most effective in reducing bowing
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Potter, W., & Riding, K. A. (2024). Temperature Effects in Match-Cast Segmental Bridge Construction [Summary]. Florida Department of Transportation. https://rosap.ntl.bts.gov/view/dot/74638
Potter, William and Kyle A Riding. Temperature Effects in Match-Cast Segmental Bridge Construction [Summary]. Florida Department of Transportation, 2024. https://rosap.ntl.bts.gov/view/dot/74638.
Potter, William, and Kyle A Riding Temperature Effects in Match-Cast Segmental Bridge Construction [Summary]. Florida Department of Transportation, 2024, ROSA P. https://rosap.ntl.bts.gov/view/dot/74638.
Traffic control devices are a primary means of communicating highway information to road users. The design, application, and maintenance of traffic control devices are under constant transformation as new technologies, methodologies, and policies are introduced. This project provides the Texas Department of Transportation with a mechanism to conduc
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Finley, M. D., Pratt, M. P., & Theiss, L. (2024). Traffic Control Device Analysis, Testing, and Evaluation Program: FY2023 Activities (Report No. FHWA/TX-23/0-7096-R3). Texas A & M University. https://rosap.ntl.bts.gov/view/dot/74593
Finley, Melisa D., Michael P. Pratt, and LuAnn Theiss. Traffic Control Device Analysis, Testing, and Evaluation Program: FY2023 Activities. Report no. FHWA/TX-23/0-7096-R3. Texas A & M University, 2024. https://rosap.ntl.bts.gov/view/dot/74593.
Finley, Melisa D., et al. Traffic Control Device Analysis, Testing, and Evaluation Program: FY2023 Activities. Texas A & M University, 2024, Report no. FHWA/TX-23/0-7096-R3, ROSA P. https://rosap.ntl.bts.gov/view/dot/74593.
Tennessee Department of Transportation Research is required to provide compensatory mitigation credits per Section 404 of the Clean Water Act and Tennessee’s Aquatic Resource Alteration Permit program when aquatic resource losses occur from highway construction. The Tennessee Stream Quantification Tool (TN SQT V.1) was created in 2019 to generate d
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Schwartz, J., Brown, J., Bogach, J., Long, G., Song, J., & Diab, G. (2024). Advancing Urban Stream Restoration/Enhancement Practices for Compensatory Mitigation Credits (Report No. RES 2019-04). Tennessee. Department of Transportation. https://rosap.ntl.bts.gov/view/dot/76962
Schwartz, John, Jason Brown, Jackson Bogach, Grace Long, Jain Song, and Ghada Diab. Advancing Urban Stream Restoration/Enhancement Practices for Compensatory Mitigation Credits. Report no. RES 2019-04. Tennessee. Department of Transportation, 2024. https://rosap.ntl.bts.gov/view/dot/76962.
Schwartz, John, et al. Advancing Urban Stream Restoration/Enhancement Practices for Compensatory Mitigation Credits. Tennessee. Department of Transportation, 2024, Report no. RES 2019-04, ROSA P. https://rosap.ntl.bts.gov/view/dot/76962.
United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis
2024-04-01
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This document provides guidance to analytical users of Vehicle Identification Number (VIN) decoding information generated for the National Highway Traffic Safety Administration’s (NHTSA) crash studies using NHTSA’s Product Information Catalog and Vehicle Listing (vPIC). The vPIC VIN decoder is built based on the vehicle manufacturer submissions to
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United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis (2024). Product Information Catalog and Vehicle Listing (vPIC) Analytical User's Manual, 2022 (Report No. DOT HS 813 547). United States. Department of Transportation. National Highway Traffic Safety Administration. https://rosap.ntl.bts.gov/view/dot/78041
United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis. Product Information Catalog and Vehicle Listing (vPIC) Analytical User's Manual, 2022. Report no. DOT HS 813 547. United States. Department of Transportation. National Highway Traffic Safety Administration, 2024. https://rosap.ntl.bts.gov/view/dot/78041.
United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis Product Information Catalog and Vehicle Listing (vPIC) Analytical User's Manual, 2022. United States. Department of Transportation. National Highway Traffic Safety Administration, 2024, Report no. DOT HS 813 547, ROSA P. https://rosap.ntl.bts.gov/view/dot/78041.
United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis
2024-04-01
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The National Highway Traffic Safety Administration works to reduce the occurrence of distracted driving and raise awareness of its dangers. This risky driving behavior poses a danger not only to vehicle occupants but pedestrians and pedalcyclists as well. Driver distraction is a specific type of driver inattention that occurs when drivers divert at
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United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis (2024). Teens and Distracted Driving in 2022 [Teen Distracted Driver Data] (Report No. DOT HS 813 558). United States. Department of Transportation. National Highway Traffic Safety Administration. https://rosap.ntl.bts.gov/view/dot/78026
United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis. Teens and Distracted Driving in 2022 [Teen Distracted Driver Data]. Report no. DOT HS 813 558. United States. Department of Transportation. National Highway Traffic Safety Administration, 2024. https://rosap.ntl.bts.gov/view/dot/78026.
United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis Teens and Distracted Driving in 2022 [Teen Distracted Driver Data]. United States. Department of Transportation. National Highway Traffic Safety Administration, 2024, Report no. DOT HS 813 558, ROSA P. https://rosap.ntl.bts.gov/view/dot/78026.
United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis
2024-04-01
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Quick reference of 2022 traffic safety numbers and statistics.
United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis (2024). Quick Facts 2022 (Report No. DOT HS 813 563). United States. Department of Transportation. National Highway Traffic Safety Administration. https://rosap.ntl.bts.gov/view/dot/78163
United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis. Quick Facts 2022. Report no. DOT HS 813 563. United States. Department of Transportation. National Highway Traffic Safety Administration, 2024. https://rosap.ntl.bts.gov/view/dot/78163.
United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis Quick Facts 2022. United States. Department of Transportation. National Highway Traffic Safety Administration, 2024, Report no. DOT HS 813 563, ROSA P. https://rosap.ntl.bts.gov/view/dot/78163.
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