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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

ITS as a Traffic Data ResourceWorkshop C6

Ralph Gillmann

FHWA


Its traffic data collected
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
Freeway Management Survey

Data Collected vs. Archived


Arterial management survey
Arterial Management Survey

Data Collected vs. Archived


Its detectors for hpms
ITS Detectors for HPMS

No ITS detectors

ITS detectors used for HPMS

16%

41%

ITS detectors not used for HPMS

43%


Archived data management systems adms
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


Adms websites
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/


Other adms s
Other ADMS’s

  • ADMS Virginia

  • Cincinnati ARTIMIS

  • Detroit MITS

  • iFlorida Data Warehouse

  • Mobility Technologies®



Caltrans pems detector health
Caltrans PeMSDetector Health


Caltrans pems adt variation
Caltrans PeMSADT Variation









Its data standards
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)


Traffic data quality measurement
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


Adus cross cutting study
ADUS Cross-Cutting Study

  • Linking Operations & Planning Data

    • Benefits and costs

  • Focus on improved:

    • planning

    • program assessment

    • traveler information

    • operations

  • Report early 2005


Applications of archived data operational test
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


Mobility monitoring program
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


Questions comments examples
Questions?Comments?Examples?