
Total Traffic Volume & Performance in Arlington County, Virginia
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day7,743 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 6.3% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 34.9 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. | 16.4% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 41.6 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $154,129 |
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A typical monitored road in Arlington County, Virginia sees 7,743 vehicles per day, while its 244 miles of monitored roads together handle 2,258,171 vehicle-miles traveled per day (≈824 million per year). About 1 in 16 vehicles is a truck, fewer than the 1 in 10 across Virginia.
Longer trips than 79% of counties in Virginia
Arlington sees 45% higher average daily traffic volume than the state average (7,743 vehicles per day against 5,349), suggesting more demand on each road - more exposure for roadside businesses, and more competition for road space. Network-wide, Arlington accounts for about 1.0% of Virginia's statewide total of vehicle-miles. By volume, Arlington's 7,743 vehicles per day outpaces 77% of counties in Virginia.
At 34.9 minutes, the average travel time is 10% higher than the state level. Its average travel time of 34.9 minutes is longer than 79% of counties in Virginia.
The congestion ratio of 16.4% is in line with the state level.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Arlington County, Virginia
| Traffic | vehicles per day16,294 |
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| Trucks | 6.8% |
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| Average travel time | 36.4 min |
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| Congestion ratio | 27.6% |
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| Drivers’ average age | 42.1 yrs |
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| Drivers’ average income | $148,275 |
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Highways carry about half of all travel in Arlington County, Virginia, 50% of vehicle-miles. The average highway carries 16,294 vehicles per day, 130% more than the average non-highway road in the same area, which carries 7,099 vehicles per day.
With 27% of the road miles (65 miles in 565 segments), highways punch above their length, carrying 1,121,987 vehicle-miles traveled per day (≈410 million per year).
70% of counties in Virginia move less traffic on their highways.
Lower highway truck share than 97% of counties in Virginia
At 6.8%, highway truck share is 48% lower than the state average. Highways here carry mainly commuter and local trips, with little through freight.
By truck concentration, highways here trail 97% of counties in Virginia. Arlington's highway truck count is lower than 54% of counties in Virginia, at roughly 1,115 trucks per day.

Non-highway Traffic in Arlington County, Virginia
| Traffic | vehicles per day7,099 |
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| Trucks | 5.7% |
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| Average travel time | 34.8 min |
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| Congestion ratio | 15.5% |
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| Drivers’ average age | 41.2 yrs |
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| Drivers’ average income | $156,950 |
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Local roads carry about half of all travel in Arlington County, Virginia, 50% of vehicle-miles. On the average non-highway road, that comes to 7,099 vehicles per day.
Local roads make up 73% of the monitored road miles (179 miles in 7,493 segments) but carry less than their share of travel: 1,136,184 vehicle-miles traveled per day (≈415 million per year). The truck share on non-highway roads is 5.7%.
Drivers from higher-income areas than 98% of counties in Virginia
Compared to highways, non-highway routes see 17% fewer trucks by share.
At 15.5%, the non-highway congestion ratio matches the state level closely.
Arlington's average driver income is higher than 98% of counties in Virginia. Arlington's median driver age is lower than 98% of counties in Virginia.