Final Report
June 2011
FHWA-SA-11-39
Notice
This document is disseminated under the sponsorship of the U.S. Department of Transportation in the interest of information exchange. The U.S. Government assumes no liability for the use of the information contained in this document.
The U.S. Government does not endorse products or manufacturers. Trademarks or manufacturers' names appear in this report only because they are considered essential to the objective of the document.
Quality Assurance Statement
The Federal Highway Administration (FHWA) provides high-quality information to serve Government, industry, and the public in a manner that promotes public understanding. Standards and policies are used to ensure and maximize the quality, objectivity, utility, and integrity of its information. FHWA periodically reviews quality issues and adjusts its programs and processes to ensure continuous quality improvement.
Acknowledgements
The project team would like to thank the following individuals who served as members on the Federal Highway Administration (FHWA) Office of Safety Technical Working Group for this effort. Their contributions helped shape the guidance that States will be receiving on the fundamental roadway safety data elements to support their Highway Safety Improvement Programs.
Office of Safety Technical Working Group
Robert Pollack, FHWA Office of Safety
Jeff Miller, FHWA Office of Safety
Mike Griffith, FHWA Office of Safety
Erin Kenley, FHWA Office of Safety
Ed Rice, FHWA Office of Safety
Lincoln Cobb, FHWA Office of Safety Research and Development
Ray Krammes, FHWA Office of Safety Research and Development
Joe Hausman, FHWA Office of Highway Policy Information
Greg Schertz, FHWA Federal Lands
Christine Thorkildsen, FHWA New York Division
Greg Piland, FHWA Illinois Division
Jerry Roche, FHWA Iowa Division
David Harkey, University of North Carolina Highway Safety Research Center
Forrest Council, University of North Carolina Highway Safety Research Center
Technical Documentation Page
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1. Report No. FHWA FHWA-SA-11-39 |
2. Government Accession No. |
3. Recipient’s Catalog No. |
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4. Title and Subtitle Background Report: Guidance for Roadway Safety Data to Support the Highway Safety Improvement Program |
5. Report Date June 2011 |
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6. Performing Organization Code |
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7. Authors Nancy Lefler, Rebecca Fiedler, Hugh McGee, Robert Pollack, and Jeff Miller |
8. Performing Organization Report No. |
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9. Performing Organization Name and Address Vanasse Hangen Brustlin, Inc. (VHB) |
10. Work Unit No. |
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11. Contract or Grant No. DTFH61-05-D-00024 (VHB) |
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12. Sponsoring Agency Name and Address Federal Highway Administration Office of Safety |
13. Type of Report and Period Covered Final Report, April 2010 - June 2011 |
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14. Sponsoring Agency Code FHWA |
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15. Supplementary Notes: The contract manager for this project was Robert Pollack. |
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16. Abstract Quality data are the foundation for making important decisions regarding the design, operation, and safety of roadways. The Highway Safety Improvement Program (HSIP) provides information on how safety data should be used. However, there are no details on specific data elements that State agencies should be collecting, maintaining, and using to support their HSIP and Strategic Highway Safety Plans (SHSPs). In 2011, the Federal Highway Administration (FHWA) Office of Safety released a guidance memorandum on the fundamental roadway and traffic data elements that States should be collecting and incorporating into their safety analyses to support their HSIP (known as the FDE/HSIP) and on what roadways they should be collected. The purpose of this report is to provide background information on why and how the guidance was developed, estimates of the costs of data collection, safety analysis tools and methods, and performance measures that should be implemented to achieve quality safety data. |
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17. Key Words Safety data, Highway Safety Improvement Program, HSIP, roadway data, traffic data, intersections, ramps, cost/benefit analysis. |
18. Distribution Statement No restrictions. |
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19. Security Classif. (of this report) Unclassified |
20. Security Classif. (of this page) Unclassified |
21. No. of Pages: 32 |
22. Price |
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Form DOT F 1700.7 (8-72) - Reproduction of completed pages authorized
Acronyms
| Term | Definition |
|---|---|
| AADT | Annual Average Daily Traffic |
| CFR | Code of Federal Regulations |
| DOT | Department of Transportation |
| EMS | Emergency Medical Services |
| FDE/HSIP | Fundamental Data Elements for HSIP |
| FHWA | Federal Highway Administration |
| FMCSA | Federal Motor Carrier Safety Administration |
| GIS | Geographic Information System |
| HCM | Highway Capacity Manual |
| HPMS | Highway Performance Monitoring System |
| HSIP | Highway Safety Improvement Program |
| HSM | Highway Safety Manual |
| IHSDM | Interactive Highway Safety Design Model |
| LIDAR | Light Detection and Ranging |
| LRS | Location Referencing System |
| MIRE | Model Inventory of Roadway Elements |
| MIRE MIS | MIRE Management Information Systems |
| NCHRP | National Cooperative Highway Research Program |
| NHS | National Highway System |
| NHTSA | National Highway Traffic Safety Administration |
| SAFETEA-LU | The Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users |
| SHSP | Strategic Highway Safety Plan |
| TRB SHRP 2 | Transportation Research Board Strategic Highway Research Program 2 |
| TRCC | Traffic Records Coordinating Committee |
| TWG | Technical Working Group |
| U.S. | United States |