
Total Traffic Volume & Performance in Washington County, Rhode Island
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day4,362 |
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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. | 32.6 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. | 14.4% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 49.3 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $110,109 |
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Our data shows 4,362 vehicles per day on the average road in Washington County, Rhode Island, and 2,984,840 vehicle-miles traveled per day (≈1.1 billion per year) across its 587 miles of monitored roads. Trucks are 9.4% of traffic, more than the 7.0% across Rhode Island.
The quietest roads of any county in Rhode Island
At 4,362 vehicles per day, the average monitored road in Washington carries 45% less traffic than the state average of 7,870, suggesting less demand on each road - less drive-by exposure for retail, but easier access for deliveries. In total volume terms, its road network carries about 16% of Rhode Island's statewide total of vehicle-miles. At 4,362 vehicles per day, Washington posts the lowest average traffic volume in Rhode Island.
At 32.6 minutes, the average travel time is 7% lower than the state level. 50% of counties in Rhode Island have a shorter average travel time than Washington's 32.6 minutes.
At 38% lower than the state level, the 14.4% congestion ratio signals smoother traffic flow - fewer delays make delivery windows more reliable.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Washington County, Rhode Island
| Traffic | vehicles per day13,757 |
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| Trucks | 12.1% |
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| Average travel time | 36.5 min |
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| Congestion ratio | 28.5% |
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| Drivers’ average age | 50.2 yrs |
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| Drivers’ average income | $109,823 |
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Highways carry about half of all travel in Washington County, Rhode Island, 47% of vehicle-miles. The average highway carries 13,757 vehicles per day, 258% more than the average non-highway road in the same area, which carries 3,839 vehicles per day.
With 19% of the road miles (110 miles in 758 segments), highways punch above their length, carrying 1,388,109 vehicle-miles traveled per day (≈507 million per year).
The highest highway truck share of any county in Rhode Island
At 12.1%, highway truck share is 37% higher than the state average. Highways here lean toward freight, so highway access is a real asset for logistics operators.
By share, Washington has the highest highway truck concentration in Rhode Island, at 12.1%. Washington's highway truck count is lower than 67% of counties in Rhode Island, at roughly 1,659 trucks per day.

Non-highway Traffic in Washington County, Rhode Island
| Traffic | vehicles per day3,839 |
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| Trucks | 7.1% |
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| Average travel time | 32.4 min |
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| Congestion ratio | 13.7% |
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| Drivers’ average age | 48.5 yrs |
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| Drivers’ average income | $110,265 |
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Local roads carry about half of all travel in Washington County, Rhode Island, 53% of vehicle-miles. On the average non-highway road, that comes to 3,839 vehicles per day.
Local roads make up 81% of the monitored road miles (477 miles in 13,620 segments) but carry less than their share of travel: 1,596,731 vehicle-miles traveled per day (≈583 million per year). Trucks make up 7.1% of non-highway traffic, about 1 in 14 vehicles.
Local congestion 40% below the Rhode Island average
The concentration of trucks on non-highway roads is 41% lower than on highways.
Non-highway congestion (13.7%) runs 40% lower than the state average, pointing to smoother local traffic flow.
Washington's average driver income is higher than 50% of counties in Rhode Island. Washington's median driver age is higher than 50% of counties in Rhode Island.