The Traffic Signals and Signs Division (TS&S) of the Miami-Dade Public Works Department is responsible for operating and maintaining Miami-Dade County’s (MDC’s) traffic-related infrastructure to assure the safe and efficient flow of pedestrian and vehicular traffic on the arterial street network.  TS&S has approximately 130 professional, technical, and support staff working in the following areas:

Traffic Signal Operations and Maintenance – The MDC Traffic Control Center (TCC) contains two of the country's largest centralized traffic signal control systems.  The original system was installed over a ten year period beginning in 1975 and set the standard by which most computerized signal systems were installed throughout the country.  It monitored and controlled 2000 traffic signals on all major arterials in MDC for decades.  It is now being replaced with an Advanced Traffic Management System (ATMS) which will enable further traffic flow improvements at all of MDC’s 2800 traffic signals.  Additional details can be found at http://www.md-atms.com/.  The TCC is also home to the TS&S Division’s traffic signal operations staff.  Using the aforementioned systems, Signal Operations Engineers adjust the operation of the traffic signals to maximize the safety and throughput of vehicles and pedestrians to cater to demands as they change throughout the day and from day to day.  Special patterns are also implemented to maximize the flow of traffic into and out of special events.  Traffic Signal field and bench technicians are on duty 24x7 to attend to any routine or emergency maintenance problems that arise with the systems or the individual signalizations.

School Speed Zone and other Flashing Signs – The TS&S Division also operates and maintains about 675 school speed zone flashing signs and over 100 other flashing signs and reversible lane control gantries.  The school speed zone flashers are turned on and off as required to warn motorists to slow down when they are in a school zone, thereby helping to assure the safety of elementary and middle school children.

Signs – The TS&S Division maintains almost one million reflective and illuminated, ground-mounted and overhead, signs throughout Miami-Dade County including Stop, Yield, Do Not Enter, street name, One-Way, No Parking, etc.  New signs are manufactured in the TS&S Division Sign Shop.  Field Technicians then install them at new locations or in replacement of faded or damaged signs which are then recycled.

Roadway Striping – The TS&S Division has roadway striping personnel who replace faded pavement markings on county owned roads on a limited basis.  (The Public Works Department relies on contractors for major restriping projects.)

Street Light Maintenance – The TS&S Division maintains over 20,000 of the street lights on MDC arterials.

Please report any needed maintenance at devices described above to ts&s@miamidade.gov so a Field Technician can be dispatched.