Miami to collaborate with county to sync traffic signals
Miami is moving to modernize and sync all its traffic lights, a step that could put the city among the few major metropolitan areas in the US to achieve complete signal synchronization.
The Miami City Commission discussed the plan March 12, examining how synchronizing signals could ease congestion, reduce accidents and prioritize the most dangerous intersections. Commissioners asked departments to collaborate with Miami-Dade County, assess the viability of synchronizing all city traffic lights and report back in April, after which the commission will decide on next steps.
Commissioner Ralph Rosado noted that Los Angeles in 2013 became the world’s first major city to synchronize all its traffic lights, spanning more than 4,500 signals. The city’s Automated Traffic Surveillance and Control system uses cameras and sensors to adjust light timing, reducing travel times on key corridors by roughly 12% and overall congestion by up to 16%.
“I think we are comparable in terms of traffic and land uses to LA, and I’d like to see us do some research on how we can work with the county to expedite that in terms of the city of Miami,” Mr. Rosado said. He highlighted resident complaints about misaligned signals and requested that the city manager and public works director coordinate with the county to prioritize Miami’s traffic lights.
Mr. Rosado also addressed safety concerns, referencing a countywide analysis of the 100 most dangerous intersections, many of which are within the City of Miami.
“I’d like to see us get regular updates on what we’re doing to address the most dangerous intersections from that list… I’d like to see an update at one of the April meetings as to where we stand,” he said, adding that the commission would determine next steps after reviewing that information.
Miami-Dade operates and maintains nearly 3,000 traffic signals, managed from a centralized Traffic Management Center using an Advanced Traffic Management System. The county has already updated roughly 2,900 intersections with “smarter” technology as part of a multi-year modernization project.
Mayor Eileen Higgins noted that the county has invested millions to upgrade every traffic signal and recommended inviting county officials to provide a progress update. “It’s certainly a multi-year implementation, because every signal has to be upgraded to become a smart signal,” she said, emphasizing the scale of the effort.
City staff confirmed that they have already requested a briefing from county officials and will continue outreach and collaboration to ensure Miami stays informed on the project’s progress.
Commissioner Damian Pardo highlighted the urgency, saying, “This is probably the most important project for our county. I know that for the folks in downtown, Edgewater, Brickell … traffic is just unbearable.” He added that the city is fully committed to working with the county to help address the problem and support the project wherever possible.





Peter
March 18, 2026 at 6:12 pm
Can we start by just adjusting the obvious issues and responding to complaints. This does not take a coordinated effort and high tech.
For example, 3 weeks ago the cross walk / traffic light on the Northbound lane on Brickell, right after the Miami river bridge, as it becomes Biscayne Blvd. was adjusted in duration for no apparent reason. Seemed like a glitch at first and now it only stays green long enough for about 4 calls to go through backing up traffic to 8th street. Have called 311 5 times to report it and received a report that it was adjusted back but that is not true nothing has happened.
Simple things like that and adjusting lights for closed streets and construction, and drawbridge are low hanging fruit…plus no turn on red signs that are not needed in many places downtown.