
Total Traffic Volume & Performance in Miami County, Ohio
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day3,736 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 11.6% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 34.8 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. | 12.7% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 49.4 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $80,892 |
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A typical monitored road in Miami County, Ohio sees 3,736 vehicles per day, while its 529 miles of monitored roads together handle 2,543,512 vehicle-miles traveled per day (≈928 million per year). Trucks are 11.6% of traffic, more than the 9.9% across Ohio.
Longer trips than 72% of counties in Ohio
Miami's average daily traffic volume is 35% lower than the state average - 3,736 vehicles per day against 5,773 - suggesting less traffic load per road - less drive-by exposure for retail, but easier access for deliveries. Network-wide, Miami accounts for about 1.0% of Ohio's statewide total of vehicle-miles. By volume, Miami's 3,736 vehicles per day outpaces 63% of counties in Ohio.
Journey times run 6% higher than the state level, at 34.8 minutes on average. Its average travel time of 34.8 minutes is longer than 72% of counties in Ohio.
At 23% lower than the state level, the 12.7% congestion ratio signals smoother traffic flow - relevant for traffic control and delivery planning.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Miami County, Ohio
| Traffic | vehicles per day21,989 |
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| Trucks | 18.4% |
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| Average travel time | 50.8 min |
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| Congestion ratio | 34.8% |
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| Drivers’ average age | 48.8 yrs |
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| Drivers’ average income | $83,064 |
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Travel in Miami County, Ohio splits roughly evenly, with about half of it (49% of vehicle-miles) on highways. The average highway carries 21,989 vehicles per day, 515% more than the average non-highway road in the same area, which carries 3,577 vehicles per day.
Yet highways are only 9% of the road network, 46 miles in 96 segments, so each mile of them is 5.6 times as busy as the average road mile.
65% of counties in Ohio move less traffic on their highways.
More highway trucks than 96% of counties in Ohio
At 18.4%, highway truck share is 24% higher than the state average. Highways here lean toward freight, so highway access is a real asset for logistics operators.
Miami's highway truck share (18.4%) is higher than 55% of counties in Ohio. By raw truck volume, Miami carries more highway trucks than 96% of counties in Ohio.

Non-highway Traffic in Miami County, Ohio
| Traffic | vehicles per day3,577 |
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| Trucks | 5.1% |
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| Average travel time | 34.6 min |
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| Congestion ratio | 12.5% |
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| Drivers’ average age | 49.6 yrs |
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| Drivers’ average income | $79,864 |
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Travel in Miami County, Ohio splits roughly evenly, with about half of it (51% of vehicle-miles) on local roads. The average non-highway road carries 3,577 vehicles per day.
Spread over 483 miles and 10,981 segments, 91% of the road network, local roads carry a lighter load per mile: 1,302,806 vehicle-miles traveled per day (≈476 million per year). Trucks make up 5.1% of non-highway traffic, about 1 in 20 vehicles.
Drivers from higher-income areas than 77% of counties in Ohio
Compared to highways, non-highway routes see 72% fewer trucks by share.
At 21% lower than the state level, the non-highway congestion ratio of 12.5% signals easier movement on local roads.
77% of counties in Ohio see lower average driver income among trip origins than Miami. The driver population here skews older than 61% of counties in Ohio.