A Method to Link Crash, Emergency Medical Service, and Trauma Registry Data

NCHRP Web-Only Document 302: Development of a Comprehensive Approach for Serious Traffic Crash Injury Measurement and Reporting Systems, provides a roadmap for developing comprehensive crash-related data linkage systems. Newer versions of related systems have since been released, additional research has been conducted, and technological developments have advanced capabilities in this area. It is now possible to use a Universally Unique Identifier (UUID) to perform deterministic linkages between two records in emergency medical service (EMS) and trauma registry databases. UUID was added to the National EMS Information System (NEMSIS) Version 3.5 and is starting to roll out to states. NEMSIS worked with the American College of Surgeons (ACS) to get UUID included as a data element on trauma records in order to allow for a direct link between EMS and trauma records. Applying this method to link crash records with EMS, trauma registries, and other types of data will increase the availability of these linkages, allowing for advancements in traffic safety data analysis, which, in turn, will support the development of more effective and comprehensive traffic safety programs.  The objective of this project is to develop, validate, and promote a scalable approach to use UUID to link person-level traffic crash data records with EMS and trauma data records for each crash event.  


  • English


  • Status: Active
  • Funding: $450000
  • Contract Numbers:

    Project 17-120

  • 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:

    Retting, Richard

  • Performing Organizations:

    University of Michigan Transportation Research Institute

    2901 Baxter Road
    Ann Arbor, Michigan  United States  48109
  • Principal Investigators:

    Flannagan, Carol

  • Start Date: 20240415
  • Expected Completion Date: 20261014
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01846133
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 17-120
  • Files: TRB, RIP
  • Created Date: May 23 2022 4:45PM