
Total Traffic Volume & Performance in Windham County, Connecticut
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day3,907 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 8.6% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 32.4 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. | 11.4% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 47.9 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $86,322 |
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The average monitored road in Windham County, Connecticut carries 3,907 vehicles per day. Across its 535 miles of monitored roads, that adds up to 2,111,303 vehicle-miles traveled per day (≈771 million per year). About 1 in 12 vehicles is a truck, in line with Connecticut (8.4%).
The quietest roads of any county in Connecticut
Windham's average daily traffic volume is 42% lower than the state average - 3,907 vehicles per day against 6,794 - suggesting less traffic load per road - less drive-by exposure for retail, but easier access for deliveries. In total volume terms, its road network carries about 3.3% of Connecticut's statewide total of vehicle-miles. At 3,907 vehicles per day, Windham posts the lowest average traffic volume in Connecticut.
The average trip takes 32.4 minutes, on par with the state level. On travel time, Windham runs shorter than 57% of counties in Connecticut.
At 34% lower than the state level, the 11.4% 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 Windham County, Connecticut
| Traffic | vehicles per day9,877 |
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| Trucks | 12.1% |
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| Average travel time | 36.0 min |
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| Congestion ratio | 25.0% |
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| Drivers’ average age | 46.6 yrs |
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| Drivers’ average income | $83,851 |
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Highways carry a significant share of travel in Windham County, Connecticut: 42% of all vehicle-miles. The average highway carries 9,877 vehicles per day, 194% more than the average non-highway road in the same area, which carries 3,363 vehicles per day.
With 20% of the road miles (108 miles in 1,049 segments), highways punch above their length, carrying 888,977 vehicle-miles traveled per day (≈324 million per year).
Fewer highway trucks than 86% of counties in Connecticut
At 12.1%, the highway truck share matches the state average for similar road classifications. The highway traffic mix is typical for Connecticut: neither freight- nor commuter-dominated.
Windham's highway truck share (12.1%) is higher than 57% of counties in Connecticut. By raw truck volume, Windham carries fewer highway trucks than 86% of counties in Connecticut.

Non-highway Traffic in Windham County, Connecticut
| Traffic | vehicles per day3,363 |
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| Trucks | 6.0% |
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| Average travel time | 32.1 min |
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| Congestion ratio | 10.2% |
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| Drivers’ average age | 48.7 yrs |
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| Drivers’ average income | $87,837 |
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A little more than half of the driving in Windham County, Connecticut happens on local roads: 58% of all vehicle-miles. A typical local road sees 3,363 vehicles per day.
Spread over 427 miles and 11,498 segments, 80% of the road network, local roads carry a lighter load per mile: 1,222,326 vehicle-miles traveled per day (≈446 million per year). Trucks make up 6.0% of non-highway traffic, about 1 in 17 vehicles.
The lowest driver income of any county in Connecticut
The concentration of trucks on non-highway roads is 50% lower than on highways.
The non-highway congestion ratio of 10.2% is 35% lower than the state level, suggesting more efficient local mobility than the state average.
At $86,322, the average driver income for trips originating here is the lowest in Connecticut. 57% of counties in Connecticut have a younger driver population than Windham.