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Implementing MAP-21 Performance Measures

Implementing MAP-21 Performance Measures. ITS Virginia Rob Hranac. Summary. Performance Measures in MAP-21 Schedule Measures Implementation Methods Technologies Approaches NPMRDS. Rulemaking Timeline. Shift in schedule. Likely Measures. Basic Measures:

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Implementing MAP-21 Performance Measures

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  1. Implementing MAP-21 Performance Measures ITS Virginia Rob Hranac

  2. Summary • Performance Measures in MAP-21 • Schedule • Measures • Implementation • Methods • Technologies • Approaches • NPMRDS

  3. Rulemaking Timeline Shift in schedule

  4. Likely Measures • Basic Measures: • Delay (annual vehicle hours) + CMAQ reduction in Delay • Reliability Index (80th percentile) • Modes: • Vehicles • Freight • Applies to: • State Departments of Transportation • Metropolitan Planning Organizations

  5. Basic Measures

  6. What is delay? Slowing Speed Return to Free Flow Back of Queue Bottleneck Cause Threshold Postmile Delay

  7. What is Reliability? Standard Reliability 80th percentile

  8. What kind of data do you need? • Many different profiles can generate these measures • Two simplest inputs: • Speeds • Necessary for delay and reliability • Volumes • Necessary for delay

  9. What technologies can you use?

  10. Common Implementation Approach • Speeds • From new probe data sources • Here, Inrix, TomTom • Minimum data: Archived 5-minute probe data on NHS • Volumes • From existing volume data sources • Count stations, ITS detectors, manual • Minimum: Archived hourly volume data

  11. NPMRDS • National Performance Management Research Data Set • Procured by USDOT • From Here/Nokia in 2013 • Free for States and MPO’s • Characteristics • Raw speeds on segments • Archived data, delivered monthly • Contains passenger and freight speeds

  12. Geography Comparisons:Most Congested States – AM Peak

  13. Truck data example

  14. National Performance Management Research Data Set

  15. Raw data

  16. Processed Data

  17. Filled-in data: Smoothed Corridor Speeds One Month One Day

  18. Application Example – Speed By Time of Day

  19. Conclusions • MAP-21 requirements soon! • Likely measures • Delay, Reliability • Common data • Speeds, Volumes on NHS segments at least hourly • Good starting points • NPMRDS • Whatever volume data you already collect

  20. Questions Rob Hranac Vice President, Analytics Iteris Transportation Systems rch@iteris.com 510-290-5496

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