Advanced Traffic Management System Upgrade

Miami-Dade County — one of the nation's top 5 most congested urban areas — has over 2,900 signalized intersections and mid-block crossings. The existing traffic control system, originally installed in 1975, has significant limitations, restricting the county from effectively managing traffic operations. Having access to traffic signal control patterns near real-time is essential.

A state-of-the-art system was implemented to better serve motorists, transit users, pedestrians, and bicyclists throughout Miami-Dade County. Our team helped set the foundation for broader and smarter mobility initiatives — near and long term — for one of the largest ATMS system upgrades undertaken as a single project in the United States. This trailblazing project upgraded the County’s advanced traffic management system (ATMS) central software, replacing 3,000 controllers and installing additional detection systems at signalized intersections. The ATMS system created an integrated traffic control network aimed at responding to imminent critical situations, traffic overloads, and congestion.

Project summary


This location is one of the top 5 most congested urban areas in the U.S.


2,900 detection systems were installed at signalized intersections.


3,000 controllers were replaced as part of this massive ATMS upgrade.

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Lidia Regalado Sanchez, EI, PMP*

Lidia Regalado Sanchez, EI, PMP*
Project Team Leader, Assistant Project Engineer

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Lidia has more than a decade of experience in Intelligent Transportation Systems (ITS) and Advanced Traffic Management Systems (ATMS). She has excellent track record of achieving strategic goals, implementing tasks, and delivering projects on time and within budget. Her responsibilities include preparing budgets and schedules and identifying risks and impacts to minimize unexpected costs at later project stages.