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                        Background Report: Guidance for Roadway Safety Data to Support the Highway Safety Improvement Program


            
            In This Section
        Safety Data Analysis & Tools
                Crash Modification Factor Clearinghouse
                Roadway Safety Data Program (RSDP)
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                Summary
Quality data are the foundation for making important decisions regarding the design, operation, and safety of roadways.  By incorporating roadway and traffic data into safety analysis procedures, States can better identify safety problems and prescribe solutions to support their HSIPs and implement their SHSPs.

The FHWA understands that States and local DOTs are facing increasing demands and decreasing resources.  This report provides background information on specific safety data elements that are fundamental to support HSIP, resources on how to collect those elements, and how much it will cost to collect these data.  A new generation of safety analysis tools and methods is being developed to help identify safety issues and provide recommendations for improvements.  These safety analysis tools all require quality roadway, traffic, and crash data to achieve the most accurate results.  Using roadway and traffic data together with crash data can help agencies to make decisions that are fiscally responsible and to improve the safety of the roadways for all users.

This report aims to provide States a framework for moving forward in collecting safety data, incorporating them into their HSIPs, and, ultimately, achieving the goal of reducing fatalities and serious injuries on the Nation’s roadways.  FHWA will continue to work with its partners in States, other Federal agencies, and the research community to update the current understanding and state of practice as more information is available and better methods are developed.
      
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                Book:Background Report: Guidance for Roadway Safety Data to Support the Highway Safety Improvement Program
              Executive Summary
                Introduction
                Use of Safety Data in the HSIP
                Model Inventory of Roadway Elements
                Relational Statewide Location Referencing System
                Data Collection Costs
                Fundamental Data Elements for HSIP
                Resources on Data Collection Methodologies
                Potential Funding Sources
                Safety Tools and Methods
                Performance Measures
                Summary
                References
                Appendix A: FDE/HSIP Element Data Dictionary U.S. DEPARTMENT OF TRANSPORTATION

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