
Total Traffic Volume & Performance in DeKalb County, Alabama
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day3,746 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 12.8% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 32.5 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. | 11.3% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 48.1 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $55,176 |
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The average monitored road in DeKalb County, Alabama carries 3,746 vehicles per day. Across its 482 miles of monitored roads, that adds up to 1,850,848 vehicle-miles traveled per day (≈676 million per year). At 12.8%, the truck share runs above the 10.6% across Alabama: about 1 in 8 vehicles.
Traffic 37% below the Alabama average
DeKalb's average daily traffic volume is 37% lower than the state average - 3,746 vehicles per day against 5,932 - suggesting less traffic load per road - lighter roads for freight, but less passing trade for roadside retail. Network-wide, DeKalb accounts for about 1.3% of Alabama's statewide total of vehicle-miles. By volume, DeKalb's 3,746 vehicles per day outpaces 61% of counties in Alabama.
The average trip takes 32.5 minutes, on par with the state level. On travel time, DeKalb runs shorter than 55% of counties in Alabama.
Congestion runs 27% lower than the state level, at a ratio of 11.3%, which means smoother traffic flow - travel times are easy to plan around for scheduled deliveries.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in DeKalb County, Alabama
| Traffic | vehicles per day5,807 |
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| Trucks | 22.2% |
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| Average travel time | 56.8 min |
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| Drivers’ average age | 48.6 yrs |
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| Drivers’ average income | $55,269 |
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A significant share of driving in DeKalb County, Alabama, 36% of vehicle-miles, happens on highways. The average highway carries 5,807 vehicles per day, 56% more than the average non-highway road in the same area, which carries 3,723 vehicles per day.
With 18% of the road miles (85 miles in 48 segments), highways punch above their length, carrying 669,550 vehicle-miles traveled per day (≈244 million per year).
Higher highway truck share than 92% of counties in Alabama
The concentration of trucks on highways (22.2%) is 50% higher than the state average for similar road classifications. Highways here lean toward freight, so highway access is a real asset for logistics operators.
By truck concentration, highways here outrank 92% of counties in Alabama. By raw truck volume, DeKalb carries more highway trucks than 59% of counties in Alabama.

Non-highway Traffic in DeKalb County, Alabama
| Traffic | vehicles per day3,723 |
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| Trucks | 7.5% |
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| Average travel time | 32.2 min |
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| Congestion ratio | 11.3% |
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| Drivers’ average age | 48.1 yrs |
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| Drivers’ average income | $55,151 |
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Local roads carry more than half of all travel in DeKalb County, Alabama (64% of vehicle-miles). The average non-highway road carries 3,723 vehicles per day.
Spread over 397 miles and 4,319 segments, 82% of the road network, local roads carry a lighter load per mile: 1,181,298 vehicle-miles traveled per day (≈431 million per year). Trucks make up 7.5% of non-highway traffic, about 1 in 13 vehicles.
Drivers from lower-income areas than 68% of counties in Alabama
Non-highway roads carry a truck concentration that's 66% lower than the highway network.
Non-highway congestion (11.3%) runs 24% lower than the state average, pointing to smoother local traffic flow.
68% of counties in Alabama see higher average driver income among trip origins than DeKalb. The driver population here skews older than 50% of counties in Alabama.