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John Nisbet , Washington State Department of Transportation

Pilot Testing of SHRP 2 Reliability Data and Analytical Products ( SHRP 2 L38). John Nisbet , Washington State Department of Transportation Yinhai Wang, University of Washington – STAR Lab. TRB’s SHRP 2 Monday Webinar - September 16 , 2013. Shrp 2 l38 products. Data

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John Nisbet , Washington State Department of Transportation

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  1. Pilot Testing of SHRP 2 Reliability Data and Analytical Products (SHRP 2 L38) John Nisbet, Washington State Department of Transportation Yinhai Wang, University of Washington – STAR Lab TRB’s SHRP 2 Monday Webinar - September 16 , 2013

  2. Shrp 2 l38 products • Data • L02: Establishing Monitoring Programs for Travel Time Reliability • Analysis • L07: Evaluation of Costs and Effectiveness of Highway Design Features to Improve Travel Time Reliability • L08: Incorporation of Nonrecurrent Congestion Factors into Highway Capacity Manual Methods      • C11: Development of Improved Economic Analysis Tools • Project Prioritization • L05: Incorporating Reliability Performance Measures into the Transportation Planning and Programming Process • C11: Development of Improved Economic Analysis Tools

  3. General progress Completed Ongoing Not started

  4. WSDOT Project testing – L02

  5. WSDOT Project testing – L02 • Apply Travel time Reliability Estimation Methodology in DRIVE Net

  6. WSDOT project testing – L07 • Data Collection (Completed) • Traffic demand data from I-5 JBLM loop detectors • Weather, incident data • Cooperate with the L07 team to better apply the methodology to WSDOT projects • L07 project study (Completed) • Study the I-5 JBLM corridor design and construction needs, gain suggestions from the L07,team, and optimize the I-5 JBLM reconstruct plan

  7. WSDOT Project testing – L07 • Spreadsheet-based tool test • Tool Study (Completed) • Installation and interface • Input requirement • Outputs • Apply I-5 JBLM data to test the tool (Ongoing) • Compute Travel Time Index (TTI) curve for existing condition • Predict TTI for treated condition • Use customized treatment tab to evaluate proposed treatments • Estimate the potential improvement of a variety of design treatments

  8. WSDOT Project testing – L08 • Data Collection (Completed) • Traffic volume data on I-5 JBLM and SR-522 • Travel speed data (INRIX data) and travel time data (ALPR data) • Weather, incident data • Spreadsheet-based tool test (Ongoing) • Apply FREEVAL to I-5 JBLM and STREETVAL to SR-522 • Test the tools’ usability and effectiveness • Test the methods and guidance for incorporating travel time reliability into capacity estimates and performance measurements

  9. WSDOT Project testing – L08 • Apply L08 methodologies to DRIVE Net • HCM performance measure • Reliability LOS Based on Current LOS Ranges • Freeway Reliability LOS Based on Travel Speed Ranges • Freeway Reliability LOS based on Most Restrictive Condition • Reliability LOS Based on the Value of Travel • Analyze impacts of variability on facility performance over long term

  10. WSDOTProject testing – C11 • Methodology study (completed) • Travel time reliability sub tool only • Test bed selection (I-5 JBLM Project) • Development of alternative scenarios • Data collection • Familiarity with the tool

  11. WSDOT Project testing – C11 • Data collection • Input data for Travel Time Reliability sub-tool on I-5 (completed) • Testing of the tool (ongoing) • Perform analysis of alternatives ( travel time index, travel delay and cost) • Provide alternative delay computation methods for C11 based on UW-STAR Lab study • Preparing reports on (not started) • data need and ease of data entry • user friendliness • Applicability of the tool • Potential future improvements

  12. WSDOT Project testing – L05 • Complete together with SHRP 2 L01/L06 Early Implementation (initiates in October 2013) • Focus will include organizational mainstreaming of operations • Includes planning, programming, and project development processes • Utilization of the L05 productions will be incorporated into the L01/L06 work plan as early actions

  13. WSDOT Task timeline

  14. Locations of products being tested Washington State Department of Transportation – University of Washington (STAR Lab) • I-5 Joint Based Lewis McChord (JBLM) Corridor • Testing of SHRP 2 L02, L07, L08 (FREEVAL) and C11 (Reliability sub-tool) on freeway • 5-min loop data and INRIX data from Jan 1st, 2010 to July 31st, 2013 (Collected) • Analyze reliability products (ongoing) • Visualization on DRIVE Net (to be done) • SR-522 Corridor • Testing of SHRP 2 L02 and L08 (STREETVAL) on highway • 5-min loop data, INRIX data and ALPR data from Jan 1st, 2011 to Jul 31st, 2013 (collected) • Travel time analyze and reliability product evaluation (ongoing) License Plate Readers along SR-522

  15. Thanks!

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