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Traffic | vehicles per day2,808 |
|---|---|
Trucks | 8.1% |
Average travel time | 36.5 min |
Congestion ratio | 9.5% |
Drivers’ average age | 50.0 yrs |
Drivers’ average income | $91,715 |
The average monitored road in Grand Isle County, Vermont carries 2,808 vehicles per day. Across its 66 miles of monitored roads, that adds up to 187,320 vehicle-miles traveled per day (≈68.4 million per year). Trucks are 8.1% of traffic, close to the 8.5% across Vermont.
Grand Isle's average daily traffic volume is 30% lower than the state average - 2,808 vehicles per day against 4,027 - suggesting less traffic load per road - less drive-by exposure for retail, but easier access for deliveries. Across the whole network, that travel is about 1.2% of Vermont's statewide total. By volume, Grand Isle's 2,808 vehicles per day trails 77% of counties in Vermont.
At 36.5 minutes, the average travel time is 12% higher than the state level. Its average travel time of 36.5 minutes is longer than 92% of counties in Vermont.
At 28% lower than the state level, the 9.5% congestion ratio signals smoother traffic flow - fewer delays make delivery windows more reliable.
| Traffic | vehicles per day4,806 |
|---|---|
| Trucks | 11.1% |
| Average travel time | 33.4 min |
| Congestion ratio | 12.9% |
| Drivers’ average age | 51.2 yrs |
| Drivers’ average income | $68,954 |
At 26% of vehicle-miles, highways carry a smaller share of the traffic in Grand Isle County, Vermont than local roads. The average highway carries 4,806 vehicles per day, 97% more than the average non-highway road in the same area, which carries 2,445 vehicles per day.
Highways make up 15% of the monitored road miles (10 miles, 142 segments), so they carry more than their share: 48,426 vehicle-miles traveled per day (≈17.7 million per year).
The concentration of trucks on highways (11.1%) is in line with the state average for similar road classifications. The highway traffic mix is typical for Vermont: neither freight- nor commuter-dominated.
By truck concentration, highways here outrank 58% of counties in Vermont. 67% of counties in Vermont see more highway trucks per day than Grand Isle's roughly 533.
| Traffic | vehicles per day2,445 |
|---|---|
| Trucks | 7.1% |
| Average travel time | 37.0 min |
| Congestion ratio | 8.9% |
| Drivers’ average age | 49.8 yrs |
| Drivers’ average income | $97,797 |
Local roads carry most of the traffic in Grand Isle County, Vermont: 74% of all vehicle-miles. On the average non-highway road, that comes to 2,445 vehicles per day.
Their share of road miles is similar, 85% (56 miles in 780 segments), carrying 138,894 vehicle-miles traveled per day (≈50.7 million per year). About 1 in 14 vehicles on non-highway roads is a truck (7.1%).
Compared to highways, non-highway routes see 36% fewer trucks by share.
Non-highway congestion (8.9%) runs 28% lower than the state average, pointing to smoother local traffic flow.
Grand Isle's average driver income is higher than 92% of counties in Vermont. 77% of counties in Vermont have an older driver population than Grand Isle.
Mobile device location data (anonymized and aggregated)
Road sensor networks and traffic counters
Historical traffic pattern databases
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