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Traffic | vehicles per day697 |
|---|---|
Trucks | 13.4% |
Average travel time | 35.8 min |
Drivers’ average age | 53.3 yrs |
Drivers’ average income | $73,113 |
Our data shows 697 vehicles per day on the average road in Sully County, South Dakota, and 50,791 vehicle-miles traveled per day (≈18.5 million per year) across its 71 miles of monitored roads. Trucks are 13.4% of traffic, more than the 10.3% across South Dakota.
At 697 vehicles per day, the average monitored road in Sully carries 78% less traffic than the state average of 3,156, suggesting less demand on each road - quiet roads that suit freight movement more than drive-by retail. Network-wide, Sully accounts for about 0.2% of South Dakota's statewide total of vehicle-miles. 82% of counties in South Dakota see more traffic than Sully's 697 vehicles per day.
At 35.8 minutes, the average travel time is 10% higher than the state level. Its average travel time of 35.8 minutes is shorter than 52% of counties in South Dakota.
| Traffic | vehicles per day1,536 |
|---|---|
| Trucks | 14.9% |
| Average travel time | 49.7 min |
| Drivers’ average age | 53.0 yrs |
| Drivers’ average income | $72,232 |
Most travel in Sully County, South Dakota happens on highways, 76% of all vehicle-miles. The average highway carries 1,536 vehicles per day, 289% more than the average non-highway road in the same area, which carries 395 vehicles per day.
Highways make up 36% of the monitored road miles (26 miles, 46 segments), so they carry more than their share: 38,689 vehicle-miles traveled per day (≈14.1 million per year).
The concentration of trucks on highways (14.9%) is 9% higher than the state average for similar road classifications. The highway traffic mix is typical for South Dakota: neither freight- nor commuter-dominated.
Sully's highway truck share (14.9%) is higher than 58% of counties in South Dakota. By raw truck volume, Sully carries fewer highway trucks than 75% of counties in South Dakota.
| Traffic | vehicles per day395 |
|---|---|
| Trucks | 8.8% |
| Average travel time | 30.8 min |
| Drivers’ average age | 54.3 yrs |
| Drivers’ average income | $74,383 |
At 24% of vehicle-miles, local roads carry a smaller share of the traffic in Sully County, South Dakota than highways. A typical local road sees 395 vehicles per day.
Local roads make up 64% of the monitored road miles (46 miles in 128 segments) but carry less than their share of travel: 12,101 vehicle-miles traveled per day (≈4.4 million per year). The truck share on non-highway roads is 8.8%.
The concentration of trucks on non-highway roads is 40% lower than on highways.
Sully's average driver income is higher than 57% of counties in South Dakota. Sully's median driver age is higher than 78% of counties in South Dakota.
Mobile device location data (anonymized and aggregated)
Road sensor networks and traffic counters
Historical traffic pattern databases
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