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Southwest Washington ITS Traffic Data Collection & Analysis: A Tale of 3 Projects Jill MacKay ITE Traffic Simulation Roundtable October 4, 2012
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Three Projects 1.C-TRAN/City of Vancouver TSP Before/After Evaluation –Purpose: Evaluate transit and traffic operations performance impacts of pilot TSP implementation. 2.RTC TSMO Demonstration Project –Purpose: Measure impacts of improvements on two key arterials 3.Southwest Region Advanced Traveler Information System Data Evaluation –Purpose: Determine usability and relative accuracy of INRIX™ traffic data for WSDOT traveler information applications. ITE Traffic Simulation Roundtable October 4, 2012 2
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TSP Pilot Project Overview Mill Plain Blvd between Fort Vancouver Way and 160th Avenue 22 intersections equipped, 8 included in analysis ITE Traffic Simulation Roundtable October 4, 2012 3
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TSP Pilot Evaluation Approach Impacts assessed for both signal ops and transit 3 Evaluation Phases Data collected for AM, mid-day and PM peaks –CAD/AVL –APC –Intersection observation –Controller logs ITE Traffic Simulation Roundtable October 4, 2012 4 Signal OperationsTransit (Route 37) Queue lengthsRunning and Travel time Cycle failuresReliability/Variability Vehicle throughputAverage Intersection Delay Ridership
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Transportation Systems Management and Operations (TSMO) Demonstration Project Overview Vancouver RTC TSMO Plan adopted 2011 Andresen Road and Mill Plain Boulevard –New fiber –Signal upgrades –Intersection improvements –New CCTV and vehicle detection Desired outcomes –Enhanced signal system performance –Improved response to real-time traffic conditions. –Expanded arterial traveler information –Automated data collection for planning and reporting ITE Traffic Simulation Roundtable October 4, 2012 5
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TSMO Corridor Evaluation Approach Before/After evaluation of TSMO improvements –Corridor performance: segment travel times and vehicle speed –Signal timing: percent vehicle arrival during traffic signal green –Ongoing performance verification: vehicle volume, speed, and classification ITE Traffic Simulation Roundtable October 4, 2012 6 Travel times O-D Volume Speed Classification Percent vehicle arrival while green
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WSDOT ATIS Data Evaluation Overview Exploring viability of third-party data for powering WSDOT traveler information systems WSDOT INRIX Data Purchases Statewide –One year of historical data –Access to INRIX Analytics –Accessible by all public agencies in WA Southwest Region + Routes into Portland –One year of real-time data ITE Traffic Simulation Roundtable October 4, 2012 7
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WSDOT ATIS Evaluation Approach Data Collection –INRIX Speed and Travel Time –WSDOT Loop Data (PORTAL) –Probe vehicles Data Processing –Mapping corridor to TMC segments Data Analysis –Calculate average travel time and speed for corridor (1 min intervals) –Calculate MOEs by corridor and speed bin –0-30 bin is key ITE Traffic Simulation Roundtable October 4, 2012 8
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Next Steps Project Status TSP Pilot: “Before” data collected, RFP for installation of signal equipt. to be awarded Nov. 13 TSMO Corridor Demonstration: Bluetooth vendor & installation contractor in procurement WSDOT ATIS: Preparing for probe vehicle data collection Continue to Explore Potential Cross-Project Coordination Use of TSMO data to perform evaluation of INRIX arterial data Installation of Bluetooth for additional freeway evaluations ITE Traffic Simulation Roundtable October 4, 2012 9
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Thank you! Jill MacKay 206.521.9091 jmackay@ibigroup.com ITE Traffic Simulation Roundtable October 4, 2012 10
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