Using Real-Time Data to Automate Variable Speeds and Traveler - PowerPoint PPT Presentation

Dec 09, 2023 •112 likes •272 views

Using Real-Time Data to Automate Variable Speeds and Traveler Information Winner of 2015 ITS America Best New Innovative Product, Service, or Application Presented by Jim Peters, P .E., PTOE 2015 ITS California Meeting TRANSPORTATION

Using Real-Time Data to Automate Variable Speeds and Traveler Information Winner of 2015 ITS America Best New Innovative Product, Service, or Application Presented by Jim Peters, P .E., PTOE 2015 ITS California Meeting TRANSPORTATION SOLUTIONS 1 September 22, 2015
Variable Speed Systems in Oregon TRANSPORTATION SOLUTIONS 2
Highway 217 in Portland, Oregon TRANSPORTATION SOLUTIONS 3
Crash Problem on Highway 217 Over 200 crashes 70% of crashes are a year rear-end collisions 50% of crashes occur during peak periods Icons made by Freepik from www.flaticon.com TRANSPORTATION SOLUTIONS 4
Active Traffic Management Systems Deployed TRANSPORTATION SOLUTIONS 5
The variable advisory speed, queue warning, & travel time systems automatically respond to real-time traffic and weather conditions TRANSPORTATION SOLUTIONS 6
Automated Variable Speed Subsystems Statewide Variable Speed System Congestion Operator Responsive Control Subsystem Subsystem Weather Responsive Subsystem TRANSPORTATION SOLUTIONS 7
Congestion Responsive System • Each subzone’s speed determined by the lower of: • Local 85 th percentile speed • Downstream speed + step (5-10 mph) • Speeds measured by dual loops and radar • Speeds < 30 mph display “SLOW” TRANSPORTATION SOLUTIONS 8
Weather Responsive System TRANSPORTATION SOLUTIONS 9
Regulatory vs. Advisory Speeds TRANSPORTATION SOLUTIONS 10
Automated Freeway Queue Warning TRANSPORTATION SOLUTIONS 11
Automated Freeway Travel Times TRANSPORTATION SOLUTIONS 12
Branding Variable Speed Systems in Oregon “ODOT RealTime” http://www.tripcheck.com/realtime/ TRANSPORTATION SOLUTIONS 13
Highway 217 Results 8 to 18% 25% Reduction in travel times Reduction in crash- related incidents 50% Reduction in travel time variability Icons made by Freepik from www.flaticon.com TRANSPORTATION SOLUTIONS 14
Thank you Jim Peters Dennis Mitchell DKS Associates Oregon Department of Transportation jim.peters@dksassociates.com dennis.j.mitchell@odot.state.or.us Carl Olson Galen McGill DKS Associates Oregon Department of Transportation carl.olson@dksassociates.com galen.e.mcgill@odot.state.or.us Josh Crain DKS Associates jvc@dksassociates.com TRANSPORTATION SOLUTIONS 15

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