
Total Traffic Volume & Performance in Lewis County, Missouri
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day1,406 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 12.1% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 33.0 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. | 7.3% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 49.2 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $54,665 |
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A typical monitored road in Lewis County, Missouri sees 1,406 vehicles per day, while its 216 miles of monitored roads together handle 345,607 vehicle-miles traveled per day (≈126 million per year). Trucks are 12.1% of traffic, more than the 9.8% across Missouri.
Traffic 75% below the Missouri average
At 1,406 vehicles per day, the average monitored road in Lewis carries 75% less traffic than the state average of 5,631, suggesting less demand on each road - very light roads: easy truck access, but little passing trade for roadside retail. In total volume terms, its road network carries about 0.2% of Missouri's statewide total of vehicle-miles. By volume, Lewis's 1,406 vehicles per day trails 80% of counties in Missouri.
At 33.0 minutes, the average travel time is 5% higher than the state level. Its average travel time of 33.0 minutes is longer than 58% of counties in Missouri.
At 63% lower than the state level, the 7.3% 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 Lewis County, Missouri
| Traffic | vehicles per day4,415 |
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| Trucks | 14.8% |
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| Average travel time | 44.4 min |
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| Congestion ratio | 9.3% |
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| Drivers’ average age | 50.3 yrs |
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| Drivers’ average income | $55,174 |
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Highways carry more than half of all travel in Lewis County, Missouri (59% of vehicle-miles). The average highway carries 4,415 vehicles per day, 259% more than the average non-highway road in the same area, which carries 1,228 vehicles per day.
Highways make up 21% of the monitored road miles (45 miles, 59 segments), so they carry more than their share: 202,308 vehicle-miles traveled per day (≈73.8 million per year).
Fewer highway trucks than 74% of counties in Missouri
Highway truck concentration here runs 10% higher than the state average, at 14.8%. The highway traffic mix is typical for Missouri: neither freight- nor commuter-dominated.
Lewis's highway truck share (14.8%) is higher than 55% of counties in Missouri. Lewis's highway truck count is lower than 74% of counties in Missouri, at roughly 655 trucks per day.

Non-highway Traffic in Lewis County, Missouri
| Traffic | vehicles per day1,228 |
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| Trucks | 8.3% |
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| Average travel time | 32.3 min |
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| Congestion ratio | 7.2% |
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| Drivers’ average age | 47.9 yrs |
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| Drivers’ average income | $54,322 |
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Local roads carry a significant share of travel in Lewis County, Missouri: 41% of all vehicle-miles. On the average non-highway road, that comes to 1,228 vehicles per day.
Local roads make up 79% of the monitored road miles (171 miles in 1,000 segments) but carry less than their share of travel: 143,299 vehicle-miles traveled per day (≈52.3 million per year). The truck share on non-highway roads is 8.3%.
Local congestion 62% below the Missouri average
Compared to highways, non-highway routes see 44% fewer trucks by share.
The non-highway congestion ratio of 7.2% is 62% lower than the state level, suggesting more efficient local mobility than the state average.
80% of counties in Missouri see higher average driver income among trip origins than Lewis. The driver population here skews older than 51% of counties in Missouri.