
Total Traffic Volume & Performance in Somervell County, Texas
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day3,835 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 8.5% |
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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. | 9.5% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 49.1 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $81,597 |
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A typical monitored road in Somervell County, Texas sees 3,835 vehicles per day, while its 92 miles of monitored roads together handle 265,816 vehicle-miles traveled per day (≈97.0 million per year). Trucks are 8.5% of traffic, close to the 9.8% across Texas.
Shorter trips than 75% of counties in Texas
At 3,835 vehicles per day, the average monitored road in Somervell carries 44% less traffic than the state average of 6,895, suggesting less demand on each road - less drive-by exposure for retail, but easier access for deliveries. Network-wide, Somervell accounts for less than 0.1% of Texas's statewide total of vehicle-miles. By volume, Somervell's 3,835 vehicles per day outpaces 66% of counties in Texas.
Journey times here (32.1 minutes on average) closely track the state level. 75% of counties in Texas have a longer average travel time than Somervell's 32.1 minutes.
At 42% lower than the state level, the 9.5% congestion ratio signals smoother traffic flow - travel times are easy to plan around for scheduled deliveries.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Somervell County, Texas
| Traffic | vehicles per day9,162 |
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| Trucks | 9.6% |
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| Average travel time | 36.2 min |
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| Congestion ratio | 16.6% |
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| Drivers’ average age | 48.3 yrs |
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| Drivers’ average income | $78,605 |
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Highways carry more than half of all travel in Somervell County, Texas (60% of vehicle-miles). The average highway carries 9,162 vehicles per day, 404% more than the average non-highway road in the same area, which carries 1,819 vehicles per day.
Highways make up 24% of the monitored road miles (22 miles, 367 segments), so they carry more than their share: 158,550 vehicle-miles traveled per day (≈57.9 million per year).
Lower highway truck share than 95% of counties in Texas
At 9.6%, highway truck share is 30% lower than the state average. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.
95% of counties in Texas see a higher highway truck share than Somervell's 9.6%. Somervell's highway truck count is lower than 70% of counties in Texas, at roughly 880 trucks per day.

Non-highway Traffic in Somervell County, Texas
| Traffic | vehicles per day1,819 |
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| Trucks | 6.8% |
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| Average travel time | 30.6 min |
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| Congestion ratio | 6.8% |
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| Drivers’ average age | 52.1 yrs |
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| Drivers’ average income | $84,900 |
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A significant share of driving in Somervell County, Texas, 40% of vehicle-miles, happens on local roads. A typical local road sees 1,819 vehicles per day.
Spread over 70 miles and 970 segments, 76% of the road network, local roads carry a lighter load per mile: 107,266 vehicle-miles traveled per day (≈39.2 million per year). About 1 in 15 vehicles on non-highway roads is a truck (6.8%).
Drivers from higher-income areas than 81% of counties in Texas
The concentration of trucks on non-highway roads is 29% lower than on highways.
Non-highway congestion (6.8%) runs 57% lower than the state average, pointing to smoother local traffic flow.
Somervell's average driver income is higher than 81% of counties in Texas. The driver population here skews older than 77% of counties in Texas.