
Total Traffic Volume & Performance in Collin County, Texas
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day7,487 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 5.6% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 30.7 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. | 16.3% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 43.1 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $130,569 |
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A typical monitored road in Collin County, Texas sees 7,487 vehicles per day, while its 2,214 miles of monitored roads together handle 23,071,551 vehicle-miles traveled per day (≈8.4 billion per year). Cars dominate: trucks are just 5.6% of traffic, under the 9.8% across Texas.
Busier roads than 93% of counties in Texas
Collin's average daily traffic volume is 9% higher than the state average - 7,487 vehicles per day against 6,895. Network-wide, Collin accounts for about 3.1% of Texas's statewide total of vehicle-miles. 93% of counties in Texas see less traffic than Collin's 7,487 vehicles per day.
Journey times run 6% lower than the state level, at 30.7 minutes on average. On travel time, Collin runs shorter than 91% of counties in Texas.
At 16.3%, the congestion ratio matches the state level closely.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Collin County, Texas
| Traffic | vehicles per day33,619 |
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| Trucks | 7.5% |
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| Average travel time | 35.7 min |
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| Congestion ratio | 43.0% |
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| Drivers’ average age | 42.9 yrs |
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| Drivers’ average income | $123,578 |
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A significant share of driving in Collin County, Texas, 41% of vehicle-miles, happens on highways. The average highway carries 33,619 vehicles per day, 415% more than the average non-highway road in the same area, which carries 6,528 vehicles per day.
That comes from just 11% of the monitored road miles: 246 miles in 1,759 segments, carrying 9,488,006 vehicle-miles traveled per day (≈3.5 billion per year).
By highway travel volume, Collin outranks 98% of counties in Texas.
Lower highway truck share than 100% of counties in Texas
At 7.5%, highway truck share is 46% lower than the state average. Highways here carry mainly commuter and local trips, with little through freight.
By truck concentration, highways here trail 100% of counties in Texas. Collin's highway truck count is higher than 84% of counties in Texas, at roughly 2,515 trucks per day.

Non-highway Traffic in Collin County, Texas
| Traffic | vehicles per day6,528 |
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| Trucks | 4.3% |
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| Average travel time | 30.5 min |
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| Congestion ratio | 15.4% |
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| Drivers’ average age | 43.2 yrs |
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| Drivers’ average income | $133,916 |
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A little more than half of the driving in Collin County, Texas happens on local roads: 59% of all vehicle-miles. On the average non-highway road, that comes to 6,528 vehicles per day.
Local roads make up 89% of the monitored road miles (1,968 miles in 47,972 segments) but carry less than their share of travel: 13,583,545 vehicle-miles traveled per day (≈5.0 billion per year). Trucks make up 4.3% of non-highway traffic, about 1 in 23 vehicles.
The highest driver income of any county in Texas
The concentration of trucks on non-highway roads is 43% lower than on highways.
At 15.4%, the non-highway congestion ratio matches the state level closely.
At $130,569, the average driver income for trips originating here is the highest in Texas. 72% of counties in Texas have an older driver population than Collin.