
Total Traffic Volume & Performance in Johnson County, Texas
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day6,026 |
|---|
Trucks The percentage of the total traffic volume composed of heavy vehicles. | 9.6% |
|---|
Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 34.3 min |
|---|
Congestion ratio The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network. | 14.6% |
|---|
Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 44.1 yrs |
|---|
Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $84,186 |
|---|
A typical monitored road in Johnson County, Texas sees 6,026 vehicles per day, while its 716 miles of monitored roads together handle 4,525,820 vehicle-miles traveled per day (≈1.7 billion per year). Trucks are 9.6% of traffic, close to the 9.8% across Texas.
Busier roads than 85% of counties in Texas
At 6,026 vehicles per day, the average road in Johnson carries somewhat less traffic than the state average of 6,895 (13% less) - a critical factor for logistics and site planning. Network-wide, Johnson accounts for about 0.6% of Texas's statewide total of vehicle-miles. 85% of counties in Texas see less traffic than Johnson's 6,026 vehicles per day.
The average trip takes 34.3 minutes, on par with the state level. Its average travel time of 34.3 minutes is shorter than 54% of counties in Texas.
The congestion ratio of 14.6% runs slightly lower than the state level (11% lower) - crucial for traffic control improvement and logistics planning.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Johnson County, Texas
| Traffic | vehicles per day12,000 |
|---|
| Trucks | 14.5% |
|---|
| Average travel time | 44.0 min |
|---|
| Congestion ratio | 27.5% |
|---|
| Drivers’ average age | 44.0 yrs |
|---|
| Drivers’ average income | $84,509 |
|---|
Highways carry a significant share of travel in Johnson County, Texas: 43% of all vehicle-miles. The average highway carries 12,000 vehicles per day, 109% more than the average non-highway road in the same area, which carries 5,751 vehicles per day.
With 20% of the road miles (142 miles in 764 segments), highways punch above their length, carrying 1,960,756 vehicle-miles traveled per day (≈716 million per year).
That is more highway travel volume than 85% of counties in Texas.
More highway trucks than 70% of counties in Texas
At 14.5%, highway truck share is 6% higher than the state average. The highway traffic mix is typical for Texas: neither freight- nor commuter-dominated.
55% of counties in Texas see a higher highway truck share than Johnson's 14.5%. By raw truck volume, Johnson carries more highway trucks than 70% of counties in Texas.

Non-highway Traffic in Johnson County, Texas
| Traffic | vehicles per day5,751 |
|---|
| Trucks | 5.8% |
|---|
| Average travel time | 33.8 min |
|---|
| Congestion ratio | 14.0% |
|---|
| Drivers’ average age | 44.2 yrs |
|---|
| Drivers’ average income | $84,067 |
|---|
A little more than half of the driving in Johnson County, Texas happens on local roads: 57% of all vehicle-miles. The average non-highway road carries 5,751 vehicles per day.
Local roads make up 80% of the monitored road miles (574 miles in 16,607 segments) but carry less than their share of travel: 2,565,064 vehicle-miles traveled per day (≈936 million per year). The truck share on non-highway roads is 5.8%.
Drivers from higher-income areas than 85% of counties in Texas
Compared to highways, non-highway routes see 60% fewer trucks by share.
Non-highway congestion (14.0%) runs slightly lower than the state level (13% lower).
Trip origins here have higher average income than 85% of counties in Texas. 62% of counties in Texas have an older driver population than Johnson.