Best Practices for Data Fusion of Probe and Point Detector Data

Data fusion is the process of integrating multiple data sources to produce more consistent, accurate, and comprehensive information than that provided by any individual data source. In a transportation context, transportation agencies are seeking to define the types and characteristics of data for entry into data fusion engines. Research is needed to identify the challenges, issues, and proven or potential practices for performing data fusion to measure or forecast travel time, speed, reliability, and other aspects of operational performance on roadway networks. Traffic datasets of interest include point sensors; Bluetooth; data from GPS devices embedded in smartphones, personal navigation devices, taxis, and fleets; third-party travel time data; and emerging connected vehicle (CV) data sets. Research that enables better knowledge of the network state could help improve traffic management and planning decisions to address impacts of recurrent and non-recurrent (e.g., incident-related) congestion. Improved network state estimates could also enhance safety outcomes by identifying locations with high crash rates and anomalous traffic flow conditions. The objectives of this research are to: (1) Develop a process to (a) identify specific objectives for data fusion; (b) identify data sources available for fusion; (c) select the most suitable data for fusion; and (d) facilitate the fusion itself. (2) Develop guidelines for transportation agencies to facilitate data fusion, improve data reporting, and ultimately improve traffic management.


  • English


  • Status: Active
  • Funding: $200000
  • Contract Numbers:

    Project 08-157

  • 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:

    Jared, David

  • Performing Organizations:

    Michael L Pack, LLC

    10779 Judy Lane
    Columbia, MD  United States  21044
  • Principal Investigators:

    Pack, Michael

  • Start Date: 20220907
  • Expected Completion Date: 20240607
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01772924
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 08-157
  • Files: TRB, RIP
  • Created Date: May 25 2021 4:33PM