adaptive signal control technology along sw 8th street pilot project
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SR 90 / US 41/SW 8 STREET ADAPTIVE SIGNAL CONTROL TECHNOLOGY (ASCT)
PILOT PROJECT CTAC MEETING: JULY 22, 2015
Evelin Legcevic Florida Department of Transportation (FDOT) District 6
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FDOT’S VISION FOR ARTERIAL AND FREEWAY OPERATIONS
• To operate our transportation system at the highest-level of cost-effective performance resulting in – Reduced excess delay on
arterials AND freeways – Real-time management
and traveler information for all modes
– Seamless coordination with ALL operating agencies
• Part of the FDOT’s 5-Year Work Program Plan for FY 2015 – FY 2019
• Part of the FDOT’s TSM&O Strategic Plan
• Collaborative effort between FDOT and MDC
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SW 8 STREET ASCT PILOT PROJECT
Goal Improve the efficiency of SW 8 Street, between SW 142 Avenue and SW 67 Avenue, using sustainable signal technology to minimize congestion and increase throughput where possible, without compromising safety for all users.
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SW 8 STREET ASCT PILOT PROJECT
SW 8 STREET ASCT PILOT PROJECT
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Objectives • Ensure a smooth flow on SW 8 Street by improving system performance for the
through movements
• Improving or maintaining performance for both major and minor movements
• Increase system throughput, where feasible, by better assignment of the green time
• Improve travel time reliability
• Improve safety
• Better accommodation of special users and conditions
• Reduce environmental and energy impacts
• Maintain effective agency operations
SW 8 STREET ASCT PILOT PROJECT
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PROJECT LIMITS SW 142 Ave
PROJECT LIMITS SW 67 Ave
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Project Limits
SW 8 STREET ASCT PILOT PROJECT
• Major east-west route with interchanges at Turnpike and SR 826 (Palmetto Expressway)
• Highly congested with limited opportunities for adding new lanes
• Signal spacing
• Includes major traffic generator such as FIU
• Includes major cross street intersections
SW 137 Avenue, SW 127 Avenue, SW 107 Avenue, SW 87 Avenue
• There will be two major work zones during the evaluation period (planned construction projects at Turnpike Interchange and SW 107 Avenue)
• Two railroad crossings (CSX and FEC railroad crossings at SW 70 Avenue)
• Varying lane configurations
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Why SW 8 Street?
SW 8 STREET ASCT PILOT PROJECT
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SW 142 Ave SW 67 Ave
SW 8th Street
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• Corridor length: 7.5 miles • Speed limit: 30 to 45 mph • Roadway Geometry: 4 to 8 lanes divided • Bi-Directional Volume: 47,000-81,000 vpd • Number of signalized intersections (along SW 8 Street and adjacent signals): 29
Corridor Characteristics Prevailing Travel Time Profile
Morning Average (TT/MPH) 24min/17mph Mid-Day Average (TT/MPH) 18min/23mph Evening Average (TT/MPH) 21min/19mph
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Morning Average (TT/MPH) 18min/23mph Mid-Day Average (TT/MPH) 13min/31mph Evening Average (TT/MPH) 19min/21mph
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Existing Conditions
SW 8 STREET ASCT PILOT PROJECT • Upgrade existing
cabinets and controllers
• New wireless communications system and IT network
• New pedestrian features, push buttons, control signals, cabling etc.
• Underground infrastructure
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Project Scope (Contd.)
SW 8 STREET ASCT PILOT PROJECT
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Design-Build Implementation
• DB Firm procurement underway • Budget: $3.5 M • Duration: approx. 18 months (starting Dec 2015)
Operations & Maintenance
• Additional ASCT related O&M resources for initial 2 year period
• Collocation at MDC facility to operate the ASCT system
Evaluation
• 2 Year Evaluation Period • FIU and UF evaluations • Plan other deployments
Other Project Details
SW 8 STREET ASCT PILOT PROJECT
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InSync Deployments
Source: http://rhythmtraffic.com/insyncs-performance/deployments/
InSync System Deployments
Nation 2000 intersections 31 states
Florida 270 intersections (deployed) 97 (scheduled)
SW 8 STREET ASCT PILOT PROJECT
• Pinellas County (SR 580) – Reduced travel time (5% to 31%) and stops (22% to 74%) – Cross street delay results were mixed – Overall Benefit Cost ratio 20:1
• Other on-going evaluations (Deland, Bay County and Palm Beach County) – Significant improvements in travel time and delay reductions in
off-peak conditions – Awaiting results during saturated conditions and impacts to side
streets – No customer complaints – Significant improvements in transition after railroad preemption
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InSync Florida Deployment Benefits
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