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Traffic | vehicles per day7,262 |
|---|---|
Trucks | 9.1% |
Average travel time | 31.9 min |
Congestion ratio | 17.6% |
Drivers’ average age | 46.4 yrs |
Drivers’ average income | $90,277 |
A typical monitored road in St. Clair County, Illinois sees 7,262 vehicles per day, while its 740 miles of monitored roads together handle 6,124,421 vehicle-miles traveled per day (≈2.2 billion per year). About 1 in 11 vehicles is a truck, in line with Illinois (10.2%).
At 7,262 vehicles per day, the average road in St. Clair carries somewhat less traffic than the state average of 8,480 (14% less) - a factor worth weighing in site selection and logistics planning. In total volume terms, its road network carries about 2.6% of Illinois's statewide total of vehicle-miles. St. Clair carries more traffic than 93% of counties in Illinois.
Journey times run 7% lower than the state level, at 31.9 minutes on average. On travel time, St. Clair runs shorter than 78% of counties in Illinois.
The congestion ratio of 17.6% runs slightly lower than the state level (15% lower) - crucial for traffic control improvement and logistics planning.
| Traffic | vehicles per day18,003 |
|---|---|
| Trucks | 14.1% |
| Average travel time | 39.1 min |
| Congestion ratio | 33.8% |
| Drivers’ average age | 46.2 yrs |
| Drivers’ average income | $88,163 |
Travel in St. Clair County, Illinois splits roughly evenly, with about half of it (45% of vehicle-miles) on highways. The average highway carries 18,003 vehicles per day, 165% more than the average non-highway road in the same area, which carries 6,791 vehicles per day.
Highways make up 21% of the monitored road miles (156 miles, 692 segments), so they carry more than their share: 2,765,567 vehicle-miles traveled per day (≈1.0 billion per year).
That is more highway travel volume than 94% of counties in Illinois.
Highway truck concentration here runs 19% lower than the state average, at 14.1%. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.
73% of counties in Illinois see a higher highway truck share than St. Clair's 14.1%. 60% of counties in Illinois see fewer highway trucks per day than St. Clair's roughly 2,531.
| Traffic | vehicles per day6,791 |
|---|---|
| Trucks | 5.0% |
| Average travel time | 31.6 min |
| Congestion ratio | 16.9% |
| Drivers’ average age | 46.5 yrs |
| Drivers’ average income | $91,219 |
Travel in St. Clair County, Illinois splits roughly evenly, with about half of it (55% of vehicle-miles) on local roads. On the average non-highway road, that comes to 6,791 vehicles per day.
Local roads make up 79% of the monitored road miles (584 miles in 15,784 segments) but carry less than their share of travel: 3,358,854 vehicle-miles traveled per day (≈1.2 billion per year). Trucks make up 5.0% of non-highway traffic, about 1 in 20 vehicles.
Non-highway roads carry a truck concentration that's 64% lower than the highway network.
The non-highway congestion ratio of 16.9% is 18% lower than the state level, suggesting more efficient local mobility than the state average.
86% of counties in Illinois see lower average driver income among trip origins than St. Clair. St. Clair's median driver age is lower than 87% of counties in Illinois.
Mobile device location data (anonymized and aggregated)
Road sensor networks and traffic counters
Historical traffic pattern databases
Identify traffic patterns street by street and analyze the exact corridors that matter to your project.
