Lewis and Clark, Montana Traffic Data

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Total traffic

Traffic

Traffic

The average number of vehicles that travel each day over a mile of the road.

3016

Trucks

Trucks

The percentage of the total traffic volume composed of heavy vehicles or trucks.

6.5%

Average travel time

Average travel time

The average time of vehicle travel for all vehicles traveling over the county road network.

39.2 min

Congestion ratio

Congestion ratio

The rate at which the actual travel time exceeds free-flow travel time.

16.0%

Drivers’ average age

Drivers’ average age

Average age of drivers in vehicles traveling over the county road network.

48.0 yrs

Drivers’ average income

Drivers’ average income

Average income of drivers in vehicles traveling over the county road network.

$78,390

Average distance driven

Average distance driven

The mean length of a trip taken by drivers over the county road network.

6.4 mi
Estimated annual traffic volume: 1,100,840 vehicles. On average, approximately 1 in every 15 vehicles is a truck. Based on an average trip distance of 6.4 mi and an average travel time of 39.2 min, the estimated average travel speed is 9.8 mph. This reflects door-to-door average speed, including time stopped at traffic signals, in congestion, and at intersections.

Highway traffic

Traffic

Traffic

The average number of vehicles that travel each day over a mile of the road.

4666

Trucks

Trucks

The percentage of the total traffic volume composed of heavy vehicles or trucks.

8.8%

Average travel time

Average travel time

The average time of vehicle travel for all vehicles traveling over the county highway network.

33.9 min

Congestion ratio

Congestion ratio

The rate at which the actual travel time exceeds free-flow travel time.

17.8%

Drivers’ average age

Drivers’ average age

Average age of drivers in vehicles traveling over the county highway network.

48.7 yrs

Drivers’ average income

Drivers’ average income

Average income of drivers in vehicles traveling over the county highway network.

$77,139

Average distance driven

Average distance driven

The mean length of a trip taken by drivers over the county road network.

7.8 mi
Annual highway traffic is 1,703,090 vehicles, which is 69% more than non-highway traffic. Trucks make up 8.8% of highway traffic, which means there are approximately 410 daily trucks on highways within Lewis and Clark County, or an estimated 149,650 trucks per year.

Non-highway traffic

Traffic

Traffic

The average number of vehicles that travel each day over a mile of the road.

2758

Trucks

Trucks

The percentage of the total traffic volume composed of heavy vehicles or trucks.

5.9%

Average travel time

Average travel time

The average time of vehicle travel for all vehicles traveling over the county non-highway roads.

40.1 min

Congestion ratio

Congestion ratio

The rate at which the actual travel time exceeds free-flow travel time.

15.7%

Drivers’ average age

Drivers’ average age

Average age of drivers in vehicles traveling over the county non-highway roads.

47.9 yrs

Drivers’ average income

Drivers’ average income

Average income of drivers in vehicles traveling over the county non-highway roads.

$78,585

Average distance driven

Average distance driven

The mean length of a trip taken by drivers over the county non-highway roads.

6.2 mi
Non-highway average travel time is 40.1 min, which is 18% more than on highways. Average trip distance on non-highway roads is 6.2 mi, which is 20% less than on highways. The average age of non-highway drivers is 47.9 yrs, which is 2% less than on highways. The average income of non-highway drivers is $78,585, which is 2% more than on highways.
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