Synthesis of Information Related to Highway Practices. Topic 48-09. Integration of Roadway Safety Data from State and Local Sources

The Moving Ahead for Progress in the 21st Century (MAP-21) transportation legislation strongly supports the view that quality data provides the foundation for making important decisions regarding the design, operation, and safety of roadways. MAP-21 emphasizes the importance of safety data for all public roads and requires that states must have safety data systems with the ability to perform safety problem identification and countermeasure analysis. In this context, safety data is defined as roadway, traffic, and crash data. MAP-21 includes requirements for the collection of roadway data based on the Model Inventory of Roadway Elements (MIRE) and use of a linear referencing system. Specifically, MAP-21 requires the collection of a subset of MIRE called MIRE Fundamental Data Elements (MIRE FDEs) that focus on roadway segment, roadway intersection, and roadway ramp data elements. In 2015, President Obama and Congress passed transportation legislation called the Fixing America’s Surface Transportation (FAST) Act that continues the emphasis on high quality safety data to support sound transportation decision making. To satisfy the requirement to collect data on all public roadways, state transportation agencies are reaching out to local agencies in an effort to obtain data that is available at the local level and avoid duplication of data collection activities. Facilitating access to and integration of data from a multitude of information systems from sources outside of an agency is a challenge for transportation agencies around the nation. Several recent NCHRP synthesis projects have provided understanding of data integration issues that should provide a foundation for the research into data integration for roadway inventory data. For example, National Cooperative Highway Research Program (NCHRP) Synthesis 460, Sharing Operations Data among Agencies, published in 2014, provides insight on data sharing issues and best practices for traffic operations data that may apply to some degree to roadway data. Similarly, the 2013 NCHRP Synthesis 446, Use of Advanced Geospatial Data, Tools, Technologies, and Information in Department of Transportation (DOT) Projects, is not directly related to the issue of roadway data integration but collected information about use of geospatial technologies and personnel that could be useful for further research into roadway data integration based on linear referencing systems. Additionally, NCHRP Synthesis 458, Roadway Safety Data Interoperability Between Local and State Agencies, summarized the exploratory issues on this topic. NCHRP Synthesis 47-05, Data Maintenance Practices, started in 2015 could provide additional input into the issue of roadway data integration. The objective of this study is to document the ways in which transportation agencies are collaborating with local agencies to integrate and maintain data. While crash data is a consideration, the focus of this effort is centered on the collection and integration of MIRE FDE from state agencies and other sources.


  • English


  • Status: Active
  • Funding: $45000
  • Contract Numbers:

    Project 20-05, Topic 48-09

  • Sponsor Organizations:

    National Cooperative Highway Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC  United States  20001

    American Association of State Highway and Transportation Officials (AASHTO)

    444 North Capitol Street, NW
    Washington, DC  United States  20001

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Project Managers:

    Zwhalen, Tanya

  • Performing Organizations:

    Myers McCarthy Consulting Engineers

  • Principal Investigators:

    Park, Seri

  • Start Date: 20160901
  • Expected Completion Date: 0
  • Actual Completion Date: 0
  • Source Data: RiP Project 41215

Subject/Index Terms

Filing Info

  • Accession Number: 01616175
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 20-05, Topic 48-09
  • Files: TRB, RiP
  • Created Date: Nov 10 2016 1:01AM