
Total Traffic Volume & Performance in Philadelphia County, Pennsylvania
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day11,596 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 6.7% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 37.5 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. | 29.2% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 44.2 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $74,602 |
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Our data shows 11,596 vehicles per day on the average road in Philadelphia County, Pennsylvania, and 11,484,880 vehicle-miles traveled per day (≈4.2 billion per year) across its 841 miles of monitored roads. Trucks are a smaller part of the mix than across Pennsylvania: 6.7% against 10.6%.
The busiest roads of any county in Pennsylvania
Philadelphia sees 106% higher average daily traffic volume than the state average (11,596 vehicles per day against 5,617), suggesting more demand on each road - heavy exposure for roadside retail, and tight road space for deliveries. Across the whole network, that travel is about 5.2% of Pennsylvania's statewide total. At 11,596 vehicles per day, Philadelphia posts the highest average traffic volume in Pennsylvania.
At 37.5 minutes, the average travel time is 8% higher than the state level. 84% of counties in Pennsylvania have a shorter average travel time than Philadelphia's 37.5 minutes.
At 77% higher than the state level, the 29.2% congestion ratio signals more pronounced congestion - peak-hour routing and delivery windows need real slack here.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Philadelphia County, Pennsylvania
| Traffic | vehicles per day25,358 |
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| Trucks | 7.6% |
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| Average travel time | 39.4 min |
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| Congestion ratio | 39.3% |
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| Drivers’ average age | 44.9 yrs |
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| Drivers’ average income | $85,254 |
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Highways carry a significant share of travel in Philadelphia County, Pennsylvania: 45% of all vehicle-miles. The average highway carries 25,358 vehicles per day, 134% more than the average non-highway road in the same area, which carries 10,833 vehicles per day.
Highways make up 19% of the monitored road miles (159 miles, 1,849 segments), so they carry more than their share: 5,113,986 vehicle-miles traveled per day (≈1.9 billion per year).
No more than 2 other counties in Pennsylvania move more traffic on their highways.
Lower highway truck share than 98% of counties in Pennsylvania
The concentration of trucks on highways (7.6%) is 52% lower than the state average for similar road classifications. Highways here carry mainly commuter and local trips, with little through freight.
98% of counties in Pennsylvania see a higher highway truck share than Philadelphia's 7.6%. By raw truck volume, Philadelphia carries more highway trucks than 75% of counties in Pennsylvania.

Non-highway Traffic in Philadelphia County, Pennsylvania
| Traffic | vehicles per day10,833 |
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| Trucks | 6.0% |
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| Average travel time | 37.4 min |
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| Congestion ratio | 28.7% |
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| Drivers’ average age | 43.6 yrs |
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| Drivers’ average income | $70,140 |
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A little more than half of the driving in Philadelphia County, Pennsylvania happens on local roads: 55% of all vehicle-miles. The average non-highway road carries 10,833 vehicles per day.
Local roads make up 81% of the monitored road miles (682 miles in 33,320 segments) but carry less than their share of travel: 6,370,894 vehicle-miles traveled per day (≈2.3 billion per year). The truck share on non-highway roads is 6.0%.
Younger drivers than 98% of counties in Pennsylvania
Non-highway roads carry a truck concentration that's 21% lower than the highway network.
Non-highway congestion (28.7%) runs 82% higher than the state average, pointing to slower local traffic flow.
Trip origins here have higher average income than 62% of counties in Pennsylvania. Philadelphia's median driver age is lower than 98% of counties in Pennsylvania.