
Total Traffic Volume & Performance in Grant Parish, Louisiana
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day1,796 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 10.9% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 30.4 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. | 5.4% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 44.6 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $66,843 |
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The average monitored road in Grant Parish, Louisiana carries 1,796 vehicles per day. Across its 289 miles of monitored roads, that adds up to 490,364 vehicle-miles traveled per day (≈179 million per year). Trucks are 10.9% of traffic, close to the 11.2% across Louisiana.
Quieter roads than 90% of counties in Louisiana
Grant sees 70% lower average daily traffic volume than the state average (1,796 vehicles per day against 6,061), suggesting less demand on each road - very light roads: easy truck access, but little passing trade for roadside retail. Network-wide, Grant accounts for about 0.4% of Louisiana's statewide total of vehicle-miles. 90% of counties in Louisiana see more traffic than Grant's 1,796 vehicles per day.
Journey times here (30.4 minutes on average) closely track the state level. 83% of counties in Louisiana have a longer average travel time than Grant's 30.4 minutes.
The congestion ratio of 5.4% is 69% lower, pointing to smoother traffic flow than the state level - delays are rare enough to plan travel times almost to the minute.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Grant Parish, Louisiana
| Traffic | vehicles per day3,525 |
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| Trucks | 12.0% |
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| Average travel time | 35.1 min |
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| Congestion ratio | 7.2% |
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| Drivers’ average age | 44.5 yrs |
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| Drivers’ average income | $69,055 |
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A little more than half of the driving in Grant Parish, Louisiana happens on highways: 59% of all vehicle-miles. The average highway carries 3,525 vehicles per day, 184% more than the average non-highway road in the same area, which carries 1,242 vehicles per day.
With 36% of the road miles (103 miles in 456 segments), highways punch above their length, carrying 289,111 vehicle-miles traveled per day (≈106 million per year).
Fewer highway trucks than 96% of counties in Louisiana
The concentration of trucks on highways (12.0%) is 25% 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.
Grant's highway truck share (12.0%) is lower than 77% of counties in Louisiana. Grant's highway truck count is lower than 96% of counties in Louisiana, at roughly 423 trucks per day.

Non-highway Traffic in Grant Parish, Louisiana
| Traffic | vehicles per day1,242 |
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| Trucks | 9.3% |
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| Average travel time | 28.9 min |
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| Congestion ratio | 4.8% |
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| Drivers’ average age | 44.6 yrs |
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| Drivers’ average income | $64,028 |
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Local roads carry a significant share of travel in Grant Parish, Louisiana: 41% of all vehicle-miles. A typical local road sees 1,242 vehicles per day.
Spread over 185 miles and 1,424 segments, 64% of the road network, local roads carry a lighter load per mile: 201,253 vehicle-miles traveled per day (≈73.5 million per year). Trucks make up 9.3% of non-highway traffic, about 1 in 11 vehicles.
Local congestion 71% below the Louisiana average
Compared to highways, non-highway routes see 22% fewer trucks by share.
At 71% lower than the state level, the non-highway congestion ratio of 4.8% signals easier movement on local roads.
Trip origins here have higher average income than 54% of counties in Louisiana. Grant's median driver age is lower than 75% of counties in Louisiana.