
Total Traffic Volume & Performance in Chester County, Pennsylvania
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day5,452 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 7.9% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 33.2 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. | 15.7% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 47.4 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $134,205 |
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A typical monitored road in Chester County, Pennsylvania sees 5,452 vehicles per day, while its 1,523 miles of monitored roads together handle 9,883,324 vehicle-miles traveled per day (≈3.6 billion per year). Trucks are a smaller part of the mix than across Pennsylvania: 7.9% against 10.6%.
Busier roads than 80% of counties in Pennsylvania
The average road in Chester carries 5,452 vehicles per day, essentially matching the state average of 5,617. Network-wide, Chester accounts for about 4.5% of Pennsylvania's statewide total of vehicle-miles. Chester carries more traffic than 80% of counties in Pennsylvania.
Journey times here (33.2 minutes on average) closely track the state level. Its average travel time of 33.2 minutes is shorter than 61% of counties in Pennsylvania.
At 15.7%, the congestion ratio matches the state level closely.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Chester County, Pennsylvania
| Traffic | vehicles per day15,899 |
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| Trucks | 10.7% |
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| Average travel time | 40.8 min |
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| Congestion ratio | 35.4% |
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| Drivers’ average age | 47.4 yrs |
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| Drivers’ average income | $131,287 |
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Highways carry about half of all travel in Chester County, Pennsylvania, 48% of vehicle-miles. The average highway carries 15,899 vehicles per day, 230% more than the average non-highway road in the same area, which carries 4,819 vehicles per day.
With 17% of the road miles (261 miles in 2,374 segments), highways punch above their length, carrying 4,709,450 vehicle-miles traveled per day (≈1.7 billion per year).
By highway travel volume, that ranks Chester in the top 5 counties in Pennsylvania.
Lower highway truck share than 86% of counties in Pennsylvania
At 10.7%, highway truck share is 32% lower than the state average. Highways here mostly serve passenger trips, so local access matters more than long-haul routing for logistics operators.
Chester's highway truck share (10.7%) is lower than 86% of counties in Pennsylvania. Chester's highway truck count is higher than 52% of counties in Pennsylvania, at roughly 1,698 trucks per day.

Non-highway Traffic in Chester County, Pennsylvania
| Traffic | vehicles per day4,819 |
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| Trucks | 5.3% |
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| Average travel time | 32.7 min |
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| Congestion ratio | 14.5% |
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| Drivers’ average age | 47.4 yrs |
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| Drivers’ average income | $135,892 |
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Local roads carry about half of all travel in Chester County, Pennsylvania, 52% of vehicle-miles. The average non-highway road carries 4,819 vehicles per day.
Local roads make up 83% of the monitored road miles (1,263 miles in 39,155 segments) but carry less than their share of travel: 5,173,875 vehicle-miles traveled per day (≈1.9 billion per year). The truck share on non-highway roads is 5.3%.
The highest driver income of any county in Pennsylvania
Non-highway roads carry a truck concentration that's 50% lower than the highway network.
Non-highway congestion (14.5%) runs slightly lower than the state level (8% lower).
Trips here originate from the highest average driver income in Pennsylvania, at $134,205. 92% of counties in Pennsylvania have an older driver population than Chester.