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Traffic | vehicles per day1,607 |
|---|---|
Trucks | 8.6% |
Average travel time | 31.7 min |
Congestion ratio | 8.8% |
Drivers’ average age | 40.0 yrs |
Drivers’ average income | $72,187 |
Our data shows 1,607 vehicles per day on the average road in Clay County, South Dakota, and 244,635 vehicle-miles traveled per day (≈89.3 million per year) across its 199 miles of monitored roads. Trucks are a smaller part of the mix than across South Dakota: 8.6% against 10.3%.
At 1,607 vehicles per day, the average monitored road in Clay carries 49% less traffic than the state average of 3,156, 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 1.0% of South Dakota's statewide total of vehicle-miles. By volume, Clay's 1,607 vehicles per day outpaces 69% of counties in South Dakota.
Journey times here (31.7 minutes on average) closely track the state level. 77% of counties in South Dakota have a longer average travel time than Clay's 31.7 minutes.
Congestion runs 32% lower than the state level, at a ratio of 8.8%, which means smoother traffic flow - travel times are easy to plan around for scheduled deliveries.
| Traffic | vehicles per day4,340 |
|---|---|
| Trucks | 10.0% |
| Average travel time | 43.0 min |
| Congestion ratio | 11.6% |
| Drivers’ average age | 43.1 yrs |
| Drivers’ average income | $73,879 |
Highways carry about half of all travel in Clay County, South Dakota, 51% of vehicle-miles. The average highway carries 4,340 vehicles per day, 229% more than the average non-highway road in the same area, which carries 1,319 vehicles per day.
With 18% of the road miles (36 miles in 196 segments), highways punch above their length, carrying 124,456 vehicle-miles traveled per day (≈45.4 million per year).
The concentration of trucks on highways (10.0%) is 26% lower than the state average for similar road classifications. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.
By truck concentration, highways here trail 94% of counties in South Dakota. By raw truck volume, Clay carries more highway trucks than 52% of counties in South Dakota.
| Traffic | vehicles per day1,319 |
|---|---|
| Trucks | 7.1% |
| Average travel time | 30.5 min |
| Congestion ratio | 8.5% |
| Drivers’ average age | 34.1 yrs |
| Drivers’ average income | $70,669 |
Local roads carry about half of all travel in Clay County, South Dakota, 49% of vehicle-miles. A typical local road sees 1,319 vehicles per day.
Spread over 163 miles and 1,856 segments, 82% of the road network, local roads carry a lighter load per mile: 120,179 vehicle-miles traveled per day (≈43.9 million per year). About 1 in 14 vehicles on non-highway roads is a truck (7.1%).
Non-highway roads carry a truck concentration that's 29% lower than the highway network.
The non-highway congestion ratio of 8.5% is 34% lower than the state level, suggesting more efficient local mobility than the state average.
Clay's average driver income is higher than 52% of counties in South Dakota. The driver population here skews younger than 95% 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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