
Total Traffic Volume & Performance in LaSalle Parish, Louisiana
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day1,911 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 10.2% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 31.4 min |
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Congestion ratio The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network. | 7.0% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 44.4 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $72,763 |
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The average monitored road in LaSalle Parish, Louisiana carries 1,911 vehicles per day. Across its 224 miles of monitored roads, that adds up to 383,498 vehicle-miles traveled per day (≈140 million per year). Trucks are 10.2% of traffic, close to the 11.2% across Louisiana.
Quieter roads than 86% of counties in Louisiana
At 1,911 vehicles per day, the average monitored road in LaSalle carries 68% less traffic than the state average of 6,061, suggesting less demand on each road - very light roads: easy truck access, but little passing trade for roadside retail. Across the whole network, that travel is about 0.3% of Louisiana's statewide total. LaSalle carries less traffic than 86% of counties in Louisiana.
The average trip takes 31.4 minutes, on par with the state level. On travel time, LaSalle runs shorter than 68% of counties in Louisiana.
At 60% lower than the state level, the 7.0% congestion ratio signals smoother traffic flow - delays are rare enough to plan travel times almost to the minute.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in LaSalle Parish, Louisiana
| Traffic | vehicles per day3,743 |
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| Trucks | 13.4% |
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| Average travel time | 51.2 min |
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| Congestion ratio | 7.6% |
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| Drivers’ average age | 44.5 yrs |
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| Drivers’ average income | $53,558 |
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A significant share of driving in LaSalle Parish, Louisiana, 33% of vehicle-miles, happens on highways. The average highway carries 3,743 vehicles per day, 119% more than the average non-highway road in the same area, which carries 1,707 vehicles per day.
Highways make up 17% of the monitored road miles (37 miles, 217 segments), so they carry more than their share: 125,997 vehicle-miles traveled per day (≈46.0 million per year).
Fewer highway trucks than 89% of counties in Louisiana
Highway truck concentration here runs 17% lower than the state average, at 13.4%. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.
LaSalle's highway truck share (13.4%) is lower than 67% of counties in Louisiana. 89% of counties in Louisiana see more highway trucks per day than LaSalle's roughly 502.

Non-highway Traffic in LaSalle Parish, Louisiana
| Traffic | vehicles per day1,707 |
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| Trucks | 8.6% |
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| Average travel time | 29.2 min |
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| Congestion ratio | 6.9% |
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| Drivers’ average age | 44.3 yrs |
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| Drivers’ average income | $77,884 |
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A little more than half of the driving in LaSalle Parish, Louisiana happens on local roads: 67% of all vehicle-miles. The average non-highway road carries 1,707 vehicles per day.
Their share of road miles is similar, 83% (187 miles in 1,952 segments), carrying 257,501 vehicle-miles traveled per day (≈94.0 million per year). Trucks make up 8.6% of non-highway traffic, about 1 in 12 vehicles.
Local congestion 59% below the Louisiana average
The concentration of trucks on non-highway roads is 36% lower than on highways.
At 59% lower than the state level, the non-highway congestion ratio of 6.9% signals easier movement on local roads.
Trip origins here have higher average income than 63% of counties in Louisiana. LaSalle's median driver age is lower than 78% of counties in Louisiana.