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ITS as a Traffic Data Resource Workshop C6

ITS as a Traffic Data Resource Workshop C6. Ralph Gillmann FHWA. ITS Traffic Data Collected. Traffic volume Traffic speed Vehicle classification Traffic incidents Lane occupancy Road and weather conditions Current & scheduled work zones. Freeway Management Survey.

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ITS as a Traffic Data Resource Workshop C6

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  1. ITS as a Traffic Data ResourceWorkshop C6 Ralph Gillmann FHWA

  2. ITS Traffic Data Collected • Traffic volume • Traffic speed • Vehicle classification • Traffic incidents • Lane occupancy • Road and weather conditions • Current & scheduled work zones

  3. Freeway Management Survey Data Collected vs. Archived

  4. Arterial Management Survey Data Collected vs. Archived

  5. ITS Detectors for HPMS No ITS detectors ITS detectors used for HPMS 16% 41% ITS detectors not used for HPMS 43%

  6. Archived Data Management Systems (ADMS) • Data sharing and re-use • “Collect one time, use many times” • Integrated data archiving • ITS and non-ITS data sources • For operations, planning, & policy • ITS and non-ITS applications

  7. ADMS Websites • Caltrans PeMS • pems.eecs.berkeley.edu/Public/index.phtml • Houston Transtar • traffic.tamu.edu/hist/historydata.html • Maryland CATT Lab • www.cattlab.umd.edu/cf/ • MnDOT TMC • www.d.umn.edu/~tkwon/TMCdata/TMCarchive.html • Washington TDAD • www.its.washington.edu/tdad/

  8. Other ADMS’s • ADMS Virginia • Cincinnati ARTIMIS • Detroit MITS • iFlorida Data Warehouse • Mobility Technologies®

  9. Caltrans PeMS ADMS

  10. Caltrans PeMSDetector Health

  11. Caltrans PeMSADT Variation

  12. Houston ITS Data

  13. Houston Travel Times

  14. Maryland CATT ADMS

  15. Maryland CATT Plot

  16. MnDOT TMC ADMS

  17. MnDOT TMC Plot

  18. ADUS Website

  19. ITS Data Standards • ASTM Archived Data User Service Subcommittee (E17.54) • Standard Guide for Archiving and Retrieving ITS-Generated Data (E 2259-03) • Metadata and traffic data standards • NTCIP Data Collection Monitoring (DCM) • Object Definitions for DCM (NTCIP 1206)

  20. Traffic Data Quality Measurement • Action Plan recommendation • Define traffic data quality metrics • Accuracy, Completeness, Validity, Timeliness, Coverage, Accessibility • Framework for traffic data quality • Guidance on traffic data quality

  21. ADUS Cross-Cutting Study • Linking Operations & Planning Data • Benefits and costs • Focus on improved: • planning • program assessment • traveler information • operations • Report early 2005

  22. Applications of Archived Data Operational Test • ADMS Virginia • Virginia DOT / Univ. Va. • Hampton Roads • Smart Traffic Center • Field Operational Test • Improved TMC operations • Improved regional planning • Improved traveler information

  23. Mobility MonitoringProgram • Objectives • Monitor mobility and reliability trends • Provide “proof of concept” and technical assistance • Archived data from 23 cities • Very detailed data • Point-based sensors • Computer-intensive processing

  24. Questions?Comments?Examples?

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