
Total Traffic Volume & Performance in Somerset County, Maryland
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day2,041 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 9.3% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 32.1 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. | 7.7% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 45.5 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $65,972 |
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A typical monitored road in Somerset County, Maryland sees 2,041 vehicles per day, while its 206 miles of monitored roads together handle 693,745 vehicle-miles traveled per day (≈253 million per year). At 9.3%, the truck share runs above the 7.5% across Maryland: about 1 in 11 vehicles.
The quietest roads of any county in Maryland
Somerset sees 73% lower average daily traffic volume than the state average (2,041 vehicles per day against 7,693), 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 0.5% of Maryland's statewide total of vehicle-miles. In fact, Somerset has the lowest average traffic volume of any county in Maryland, at 2,041 vehicles per day.
The average trip takes 32.1 minutes, 6% lower than the state level. On travel time, Somerset runs shorter than 61% of counties in Maryland.
At 62% lower than the state level, the 7.7% congestion ratio signals smoother traffic flow - delays are rare enough to plan travel times almost to the minute.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Somerset County, Maryland
| Traffic | vehicles per day10,934 |
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| Trucks | 10.3% |
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| Average travel time | 40.6 min |
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| Congestion ratio | 32.4% |
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| Drivers’ average age | 46.1 yrs |
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| Drivers’ average income | $68,418 |
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Highways carry more than half of all travel in Somerset County, Maryland (66% of vehicle-miles). The average highway carries 10,934 vehicles per day, 590% more than the average non-highway road in the same area, which carries 1,585 vehicles per day.
Yet highways are only 20% of the road network, 41 miles in 144 segments, so each mile of them is 3.3 times as busy as the average road mile.
Fewer highway trucks than 74% of counties in Maryland
At 10.3%, highway truck share is 5% higher than the state average. The highway traffic mix is typical for Maryland: neither freight- nor commuter-dominated.
By truck concentration, highways here outrank 52% of counties in Maryland. Somerset's highway truck count is lower than 74% of counties in Maryland, at roughly 1,123 trucks per day.

Non-highway Traffic in Somerset County, Maryland
| Traffic | vehicles per day1,585 |
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| Trucks | 7.5% |
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| Average travel time | 31.6 min |
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| Congestion ratio | 6.5% |
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| Drivers’ average age | 43.1 yrs |
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| Drivers’ average income | $62,447 |
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Local roads carry a significant share of travel in Somerset County, Maryland: 34% of all vehicle-miles. The average non-highway road carries 1,585 vehicles per day.
Spread over 165 miles and 2,808 segments, 80% of the road network, local roads carry a lighter load per mile: 235,527 vehicle-miles traveled per day (≈86.0 million per year). Trucks make up 7.5% of non-highway traffic, about 1 in 13 vehicles.
Drivers from lower-income areas than 96% of counties in Maryland
The concentration of trucks on non-highway roads is 27% lower than on highways.
The non-highway congestion ratio of 6.5% is 66% lower than the state level, suggesting more efficient local mobility than the state average.
96% of counties in Maryland see higher average driver income among trip origins than Somerset. 78% of counties in Maryland have an older driver population than Somerset.