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Traffic | vehicles per day3,305 |
|---|---|
Trucks | 12.9% |
Average travel time | 29.3 min |
Congestion ratio | 11.4% |
Drivers’ average age | 47.7 yrs |
Drivers’ average income | $64,782 |
Our data shows 3,305 vehicles per day on the average road in St. Mary Parish, Louisiana, and 1,181,273 vehicle-miles traveled per day (≈431 million per year) across its 303 miles of monitored roads. Trucks are 12.9% of traffic, more than the 11.2% across Louisiana.
St. Mary's average daily traffic volume is 45% lower than the state average - 3,305 vehicles per day against 6,061 - suggesting less traffic load per road - less drive-by exposure for retail, but easier access for deliveries. Network-wide, St. Mary accounts for about 1.0% of Louisiana's statewide total of vehicle-miles. By volume, St. Mary's 3,305 vehicles per day trails 57% of counties in Louisiana.
At 29.3 minutes, the average travel time is 8% lower than the state level. Its average travel time of 29.3 minutes is shorter than 94% of counties in Louisiana.
At 34% lower than the state level, the 11.4% congestion ratio signals smoother traffic flow - fewer delays make delivery windows more reliable.
| Traffic | vehicles per day10,808 |
|---|---|
| Trucks | 16.0% |
| Average travel time | 44.8 min |
| Congestion ratio | 25.4% |
| Drivers’ average age | 47.2 yrs |
| Drivers’ average income | $66,669 |
A little more than half of the driving in St. Mary Parish, Louisiana happens on highways: 67% of all vehicle-miles. The average highway carries 10,808 vehicles per day, 312% more than the average non-highway road in the same area, which carries 2,625 vehicles per day.
Highways make up 27% of the monitored road miles (83 miles, 221 segments), so they carry more than their share: 791,943 vehicle-miles traveled per day (≈289 million per year).
That is more highway travel volume than 57% of counties in Louisiana.
At 16.0%, the highway truck share matches the state average for similar road classifications. The highway traffic mix is typical for Louisiana: neither freight- nor commuter-dominated.
St. Mary's highway truck share (16.0%) is higher than 52% of counties in Louisiana. By raw truck volume, St. Mary carries fewer highway trucks than 57% of counties in Louisiana.
| Traffic | vehicles per day2,625 |
|---|---|
| Trucks | 6.6% |
| Average travel time | 27.9 min |
| Congestion ratio | 10.2% |
| Drivers’ average age | 48.8 yrs |
| Drivers’ average income | $62,608 |
A significant share of driving in St. Mary Parish, Louisiana, 33% of vehicle-miles, happens on local roads. On the average non-highway road, that comes to 2,625 vehicles per day.
Local roads make up 73% of the monitored road miles (220 miles in 2,441 segments) but carry less than their share of travel: 389,330 vehicle-miles traveled per day (≈142 million per year). Trucks make up 6.6% of non-highway traffic, about 1 in 15 vehicles.
Non-highway roads carry a truck concentration that's 59% lower than the highway network.
Non-highway congestion (10.2%) runs 40% lower than the state average, pointing to smoother local traffic flow.
St. Mary's average driver income is higher than 51% of counties in Louisiana. The driver population here skews older than 84% of counties in Louisiana.
Mobile device location data (anonymized and aggregated)
Road sensor networks and traffic counters
Historical traffic pattern databases
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