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Traffic | vehicles per day5,977 |
|---|---|
Trucks | 6.8% |
Average travel time | 31.7 min |
Congestion ratio | 15.2% |
Drivers’ average age | 50.2 yrs |
Drivers’ average income | $76,256 |
A typical monitored road in St. Clair County, Michigan sees 5,977 vehicles per day, while its 522 miles of monitored roads together handle 3,177,953 vehicle-miles traveled per day (≈1.2 billion per year). About 1 in 15 vehicles is a truck, in line with Michigan (7.7%).
St. Clair's average daily traffic volume is 22% lower than the state average - 5,977 vehicles per day against 7,697 - suggesting less traffic load per road - a critical factor for logistics and site planning. Network-wide, St. Clair accounts for about 1.4% of Michigan's statewide total of vehicle-miles. By volume, St. Clair's 5,977 vehicles per day outpaces 85% of counties in Michigan.
The average trip takes 31.7 minutes, 5% lower than the state level. On travel time, St. Clair runs shorter than 79% of counties in Michigan.
At 17% lower than the state level, the 15.2% congestion ratio signals smoother traffic flow - crucial for traffic control improvement and logistics planning.
| Traffic | vehicles per day8,155 |
|---|---|
| Trucks | 11.2% |
| Average travel time | 35.8 min |
| Congestion ratio | 25.3% |
| Drivers’ average age | 49.6 yrs |
| Drivers’ average income | $77,485 |
A significant share of driving in St. Clair County, Michigan, 32% of vehicle-miles, happens on highways. The average highway carries 8,155 vehicles per day, 37% more than the average non-highway road in the same area, which carries 5,941 vehicles per day.
With 21% of the road miles (112 miles in 203 segments), highways punch above their length, carrying 1,016,446 vehicle-miles traveled per day (≈371 million per year).
By highway travel volume, St. Clair outranks 70% of counties in Michigan.
At 11.2%, highway truck share is 6% lower than the state average. The highway traffic mix is typical for Michigan: neither freight- nor commuter-dominated.
51% of counties in Michigan see a lower highway truck share than St. Clair's 11.2%. St. Clair's highway truck count is higher than 55% of counties in Michigan, at roughly 914 trucks per day.
| Traffic | vehicles per day5,941 |
|---|---|
| Trucks | 4.7% |
| Average travel time | 31.7 min |
| Congestion ratio | 15.1% |
| Drivers’ average age | 50.3 yrs |
| Drivers’ average income | $75,910 |
A little more than half of the driving in St. Clair County, Michigan happens on local roads: 68% of all vehicle-miles. A typical local road sees 5,941 vehicles per day.
Local roads also make up about 79% of the monitored road miles: 410 miles in 12,297 segments, together carrying 2,161,507 vehicle-miles traveled per day (≈789 million per year). About 1 in 22 vehicles on non-highway roads is a truck (4.7%).
Compared to highways, non-highway routes see 59% fewer trucks by share.
At 17% lower than the state level, the non-highway congestion ratio of 15.1% signals easier movement on local roads.
Trip origins here have higher average income than 77% of counties in Michigan. The driver population here skews younger than 54% of counties in Michigan.
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.
