Street engineering and maintenance in Miami is divided between the Florida Department of Transportation District 6 (FDOT District 6) and Miami-Dade County's Department of Transportation and Public Works (DTPW). Miami-Dade County maintains the majority of local roads, while FDOT has jurisdiction over some of the larger multi-lane arterials.
While Miami-Dade County oversees final roadway designs and, in some cases, maintenance for municipalities, each municipality has a staff of engineers and planners on hand. All municipal redesigns require approval through Miami-Dade DTPW.
If your neighborhood necessitates safer streets, one or more of these public works departments - and your area commissioner(s) - are where you should address your concerns. Always maintain a productive, respectful narrative if you want to see more efforts put towards safer streets. Certain engineering standards may currently limit what can be done, so be open to options made available to your community. Engineering guides like the Manual on Uniform Traffic Control Devices (MUTCD) or Florida Greenbook establish what can or cannot be built.
Use the list here to find your Public Works department. Keep in mind that requests through your local commissioner (or commissioners) tend to receive increased priority.
