
Total Traffic Volume & Performance in Carbon County, Utah
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day4,880 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 9.4% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 35.1 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. | 10.1% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 46.8 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $56,142 |
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Our data shows 4,880 vehicles per day on the average road in Carbon County, Utah, and 566,033 vehicle-miles traveled per day (≈207 million per year) across its 179 miles of monitored roads. Trucks are 9.4% of traffic, close to the 8.9% across Utah.
Longer trips than 79% of counties in Utah
Carbon sees 52% lower average daily traffic volume than the state average (4,880 vehicles per day against 10,198), suggesting less demand on each road - quiet roads that suit freight movement more than drive-by retail. In total volume terms, its road network carries about 0.7% of Utah's statewide total of vehicle-miles. 50% of counties in Utah see less traffic than Carbon's 4,880 vehicles per day.
Journey times run 9% higher than the state level, at 35.1 minutes on average. 79% of counties in Utah have a shorter average travel time than Carbon's 35.1 minutes.
At 53% lower than the state level, the 10.1% congestion ratio signals smoother traffic flow - free-flowing roads make scheduled deliveries highly predictable.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Carbon County, Utah
| Traffic | vehicles per day8,411 |
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| Trucks | 11.9% |
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| Average travel time | 42.9 min |
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| Drivers’ average age | 46.7 yrs |
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| Drivers’ average income | $57,101 |
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Highways carry more than half of all travel in Carbon County, Utah (55% of vehicle-miles). The average highway carries 8,411 vehicles per day, 141% more than the average non-highway road in the same area, which carries 3,491 vehicles per day.
Highways make up 25% of the monitored road miles (44 miles, 490 segments), so they carry more than their share: 313,274 vehicle-miles traveled per day (≈114 million per year).
Fewer highway trucks than 71% of counties in Utah
The concentration of trucks on highways (11.9%) is in line with the state average for similar road classifications. The highway traffic mix is typical for Utah: neither freight- nor commuter-dominated.
58% of counties in Utah see a higher highway truck share than Carbon's 11.9%. By raw truck volume, Carbon carries fewer highway trucks than 71% of counties in Utah.

Non-highway Traffic in Carbon County, Utah
| Traffic | vehicles per day3,491 |
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| Trucks | 6.4% |
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| Average travel time | 32.1 min |
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| Congestion ratio | 10.1% |
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| Drivers’ average age | 46.8 yrs |
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| Drivers’ average income | $55,655 |
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Local roads carry a significant share of travel in Carbon County, Utah: 45% of all vehicle-miles. A typical local road sees 3,491 vehicles per day.
Local roads make up 75% of the monitored road miles (134 miles in 1,245 segments) but carry less than their share of travel: 252,759 vehicle-miles traveled per day (≈92.3 million per year). About 1 in 16 vehicles on non-highway roads is a truck (6.4%).
Drivers from lower-income areas than 96% of counties in Utah
Compared to highways, non-highway routes see 46% fewer trucks by share.
The non-highway congestion ratio of 10.1% is 56% lower than the state level, suggesting more efficient local mobility than the state average.
96% of counties in Utah see higher average driver income among trip origins than Carbon. The driver population here skews older than 73% of counties in Utah.