
Total Traffic Volume & Performance in Miami-Dade County, Florida
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day12,935 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 6.0% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 33.6 min |
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Congestion ratio The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network. | 26.8% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 46.3 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $88,735 |
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The average monitored road in Miami-Dade County, Florida carries 12,935 vehicles per day. Across its 2,983 miles of monitored roads, that adds up to 47,779,619 vehicle-miles traveled per day (≈17.4 billion per year). Trucks are a smaller part of the mix than across Florida: 6.0% against 8.6%.
Busier roads than 98% of counties in Florida
At 12,935 vehicles per day, the average monitored road in Miami-Dade carries 30% more traffic than the state average of 9,922, suggesting more demand on each road - more exposure for roadside businesses, and more competition for road space. Network-wide, Miami-Dade accounts for about 9.1% of Florida's statewide total of vehicle-miles. Miami-Dade carries more traffic than 98% of counties in Florida.
At 33.6 minutes, the average travel time matches the state level closely. 52% of counties in Florida have a shorter average travel time than Miami-Dade's 33.6 minutes.
Congestion is somewhat higher than the state level, at a ratio of 26.8% (12% higher) - relevant for traffic control and delivery planning.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Miami-Dade County, Florida
| Traffic | vehicles per day34,754 |
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| Trucks | 6.1% |
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| Average travel time | 35.5 min |
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| Congestion ratio | 54.3% |
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| Drivers’ average age | 46.0 yrs |
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| Drivers’ average income | $89,474 |
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Highways carry about half of all travel in Miami-Dade County, Florida, 45% of vehicle-miles. The average highway carries 34,754 vehicles per day, 200% more than the average non-highway road in the same area, which carries 11,591 vehicles per day.
Highways make up 19% of the monitored road miles (556 miles, 5,233 segments), so they carry more than their share: 21,525,851 vehicle-miles traveled per day (≈7.9 billion per year).
That is the most highway travel volume of any county in Florida.
The lowest highway truck share of any county in Florida
Highway truck concentration here runs 46% lower than the state average, at 6.1%. Highways here carry mainly commuter and local trips, with little through freight.
By share, Miami-Dade has the lowest highway truck concentration in Florida, at 6.1%. Miami-Dade's highway truck count is lower than 63% of counties in Florida, at roughly 2,106 trucks per day.

Non-highway Traffic in Miami-Dade County, Florida
| Traffic | vehicles per day11,591 |
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| Trucks | 6.0% |
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| Average travel time | 33.5 min |
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| Congestion ratio | 25.1% |
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| Drivers’ average age | 46.6 yrs |
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| Drivers’ average income | $88,246 |
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Local roads carry about half of all travel in Miami-Dade County, Florida, 55% of vehicle-miles. On the average non-highway road, that comes to 11,591 vehicles per day.
Local roads make up 81% of the monitored road miles (2,427 miles in 84,939 segments) but carry less than their share of travel: 26,253,768 vehicle-miles traveled per day (≈9.6 billion per year). The truck share on non-highway roads is 6.0%.
Drivers from higher-income areas than 80% of counties in Florida
Local roads and highways carry about the same truck share here (6.0% against 6.1%), so freight is not confined to the highways.
Non-highway congestion (25.1%) runs slightly higher than the state level (11% higher).
80% of counties in Florida see lower average driver income among trip origins than Miami-Dade. Miami-Dade's median driver age is lower than 68% of counties in Florida.