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Adaptive Signal Control Case Studies


City of Temecula
Adaptive Traffic Control System Design & Implementation Project

Temecula implements citywide adaptive traffic signal control to optimize traffic flow and improve quality of life for residents.

Significant improvements in mobility were achieved through three main initiatives, ensuring perpetual optimization of arterials, allowing signals to optimize signal timing on the-fly to meet demand. Citywide results included 29% fewer stops during peak periods, 17% improvement in speed, and 14% reduction in travel time.

Project Scope
  • 7 primary arterials
  • 18 miles of roadway
  • 83 signalized intersections
  • 7 Caltrans signals at freeway interchange
Top Benefits / Results
  • Established communication with Caltrans' signals
  • Minimized queuing at freeway ramps
  • 30:1 lifetime benefit-to-cost ratio
  • 81.3% of intersections showed reduction in delays

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City of San Marcos
"Smart Corridor" Project

The City of San Marcos transformed San Marcos Boulevard, it’s most congested arterial, into a “smart corridor” through the successful implementation of QuicTrac adaptive signal control. They received maximum benefits for the motoring public at a minimal cost to the City which resulted in 46.0% less delay, 39.1% fewer stops, and 7.8% less fuel consumption $645,000 in first year benefits.

Project Scope
  • Second busiest surface arterial in San Diego County
  • 22,000 - 46,000 average daily traffic
  • Major and minor intersections
  • 4 peak travel periods
Top Benefits / Results
  • Delay reductions as high as 46%
  • 7.8% less fuel consumption
  • Minimal displacement to vehicles traveling opposite the optimized direction
  • 8:1 lifetime benefit-to-cost ratio

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QuicTrac Adaptive Control Brochure

Product Overview & Benefits