
Total Traffic Volume & Performance in Summit County, Colorado
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day5,112 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 11.8% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 27.7 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. | 18.1% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 44.8 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $112,675 |
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Our data shows 5,112 vehicles per day on the average road in Summit County, Colorado, and 1,708,847 vehicle-miles traveled per day (≈624 million per year) across its 224 miles of monitored roads. At 11.8%, the truck share runs above the 8.4% across Colorado: about 1 in 8 vehicles.
Shorter trips than 87% of counties in Colorado
Summit sees 24% lower average daily traffic volume than the state average (5,112 vehicles per day against 6,752), suggesting less demand on each road - a critical factor for logistics and site planning. In total volume terms, its road network carries about 1.3% of Colorado's statewide total of vehicle-miles. 73% of counties in Colorado see less traffic than Summit's 5,112 vehicles per day.
The average trip takes 27.7 minutes, 17% lower than the state level. 87% of counties in Colorado have a longer average travel time than Summit's 27.7 minutes.
Congestion is somewhat higher than the state level, at a ratio of 18.1% (15% higher) - crucial for traffic control improvement and logistics planning.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Summit County, Colorado
| Traffic | vehicles per day8,266 |
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| Trucks | 15.6% |
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| Average travel time | 44.7 min |
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| Congestion ratio | 20.0% |
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| Drivers’ average age | 44.5 yrs |
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| Drivers’ average income | $105,598 |
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A little more than half of the driving in Summit County, Colorado happens on highways: 62% of all vehicle-miles. The average highway carries 8,266 vehicles per day, 81% more than the average non-highway road in the same area, which carries 4,574 vehicles per day.
Highways make up 44% of the monitored road miles (99 miles, 334 segments), so they carry more than their share: 1,061,238 vehicle-miles traveled per day (≈387 million per year).
74% of counties in Colorado move less traffic on their highways.
More highway trucks than 77% of counties in Colorado
At 15.6%, highway truck share is 39% higher than the state average. Highways here lean toward freight, so highway access is a real asset for logistics operators.
75% of counties in Colorado see a lower highway truck share than Summit's 15.6%. 77% of counties in Colorado see fewer highway trucks per day than Summit's roughly 1,293.

Non-highway Traffic in Summit County, Colorado
| Traffic | vehicles per day4,574 |
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| Trucks | 5.6% |
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| Average travel time | 24.8 min |
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| Congestion ratio | 17.8% |
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| Drivers’ average age | 44.9 yrs |
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| Drivers’ average income | $116,515 |
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Local roads carry a significant share of travel in Summit County, Colorado: 38% of all vehicle-miles. A typical local road sees 4,574 vehicles per day.
Local roads make up 56% of the monitored road miles (126 miles in 1,959 segments) but carry less than their share of travel: 647,609 vehicle-miles traveled per day (≈236 million per year). About 1 in 18 vehicles on non-highway roads is a truck (5.6%).
Drivers from higher-income areas than 90% of counties in Colorado
The concentration of trucks on non-highway roads is 64% lower than on highways.
The non-highway congestion ratio of 17.8% is 18% higher than the state level, suggesting slower local mobility than the state average.
90% of counties in Colorado see lower average driver income among trip origins than Summit. 75% of counties in Colorado have an older driver population than Summit.