Miami-Dade County wins NACo Award for smart signals technology
Miami-Dade County recently received a National Association of Counties (NACo) Achievement Award in Information Technology for its adaptive ‘smart’ signal control technology along the NW 36 Street corridor.
In 2016, the Department of Transportation and Public Works (DTPW), and the Information Technology Department, began working on enhancing the County’s traffic mobility management program by implementing a small-scale project to deploy Caltran 2070LX Traffic Signal controllers and test adaptive signal control capabilities along the NW 36 Street Corridor, covering 10 intersections, between 71 and 84 avenues.
The County contracted Econolite to deploy their Caltran 2070LX Safetran traffic controllers and Traffic Management System software. The upgraded equipment included adaptive functionality and the installation of video vehicle detection at intersections to evaluate traffic demand per lane.
In addition, the controllers allow for real-time traffic movement decisions based on the actual traffic demand, patterns and leverage other traffic detectors already installed at those intersections. In other words, the smart signals can detect when traffic demand is increasing and continuously adjust their own timing to improve traffic flow and operate more efficiently.
Studies along the NW 36 Street corridor demonstrated a 10 percent reduction in travel time along the corridor. The installation of the new signals is part of a larger five-year plan to improve mobility in Miami-Dade County. The upgraded ‘smart’ signals are being installed along some of the County’s 10 busiest corridors. To date, 293 of the traffic signals along the corridors have been upgraded with smart signals.
“Within the next three to four years, we’ll have an entire network of roads that will have smart signals. Based on improvements we’ve already seen along NW 36 Street, we expect to see improvements of 10 to 15 percent in mobility among some of the County’s most congested roads,” said Miami-Dade County Mayor Carlos A. Gimenez.
The new signal equipment also is giving priority to Express Metrobuses traveling along the South Dade TransitWay, improving travel time for commuters traveling along this corridor.
Miami-Dade County is implementing new traffic signal technologies to deliver smart signals that can provide adaptive signal timing, connected vehicles, emergency pre-emption, and transit signal priority to enhance mobility in the County.