
Total Traffic Volume & Performance in Adams County, Colorado
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day9,165 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 8.0% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 32.3 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. | 18.5% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 41.0 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $109,843 |
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A typical monitored road in Adams County, Colorado sees 9,165 vehicles per day, while its 1,031 miles of monitored roads together handle 10,849,636 vehicle-miles traveled per day (≈4.0 billion per year). Trucks are 8.0% of traffic, close to the 8.4% across Colorado.
Busier roads than 98% of counties in Colorado
At 9,165 vehicles per day, the average monitored road in Adams carries 36% more traffic than the state average of 6,752, suggesting more demand on each road - more exposure for roadside businesses, and more competition for road space. In total volume terms, its road network carries about 8.5% of Colorado's statewide total of vehicle-miles. By volume, Adams's 9,165 vehicles per day outpaces 98% of counties in Colorado.
At 32.3 minutes, the average travel time matches the state level closely. On travel time, Adams runs shorter than 63% of counties in Colorado.
The congestion ratio of 18.5% is 18% higher, pointing to more pronounced congestion than the state level - relevant for traffic control and delivery planning.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Adams County, Colorado
| Traffic | vehicles per day28,085 |
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| Trucks | 11.0% |
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| Average travel time | 38.1 min |
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| Congestion ratio | 50.0% |
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| Drivers’ average age | 40.9 yrs |
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| Drivers’ average income | $110,211 |
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Highways carry about half of all travel in Adams County, Colorado, 48% of vehicle-miles. The average highway carries 28,085 vehicles per day, 234% more than the average non-highway road in the same area, which carries 8,411 vehicles per day.
With 21% of the road miles (216 miles in 924 segments), highways punch above their length, carrying 5,238,118 vehicle-miles traveled per day (≈1.9 billion per year).
No more than 2 other counties in Colorado move more traffic on their highways.
More highway trucks than 96% of counties in Colorado
Highway truck concentration here (11.0%) closely tracks the state average for similar road classifications. The highway traffic mix is typical for Colorado: neither freight- nor commuter-dominated.
Adams's highway truck share (11.0%) is lower than 53% of counties in Colorado. By raw truck volume, Adams carries more highway trucks than 96% of counties in Colorado.

Non-highway Traffic in Adams County, Colorado
| Traffic | vehicles per day8,411 |
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| Trucks | 5.1% |
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| Average travel time | 32.0 min |
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| Congestion ratio | 17.2% |
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| Drivers’ average age | 41.1 yrs |
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| Drivers’ average income | $109,634 |
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Local roads carry about half of all travel in Adams County, Colorado, 52% of vehicle-miles. The average non-highway road carries 8,411 vehicles per day.
Local roads make up 79% of the monitored road miles (815 miles in 23,186 segments) but carry less than their share of travel: 5,611,518 vehicle-miles traveled per day (≈2.0 billion per year). About 1 in 20 vehicles on non-highway roads is a truck (5.1%).
Younger drivers than 97% of counties in Colorado
Compared to highways, non-highway routes see 54% fewer trucks by share.
Non-highway congestion (17.2%) runs slightly higher than the state level (15% higher).
Adams's average driver income is higher than 87% of counties in Colorado. Adams's median driver age is lower than 97% of counties in Colorado.