TrafficZoom tracks traffic on 41,374 road miles in Pennsylvania, divided into 825,535 segments averaging 265 ft. The average monitored road here carries 5,617 vehicles a day. Built from cross-verified mobile and road-sensor data, these counts help you size up a retail site, plan logistics routes or assess infrastructure needs.
Data sourced from TrafficZoom's proprietary analytics platform.
Total Traffic Volume & Performance in Pennsylvania
Traffic
The average number of vehicles that travel each day over any road in the road network.
vehicles per day5,617
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
10.6%
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
34.6 min
Congestion ratio
The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network.
16.5%
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
48.5 yrs
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$89,006
The average monitored road in Pennsylvania carries 5,617 vehicles per day. Across its 41,374 miles of monitored roads, that adds up to 219,683,082 vehicle-miles traveled per day (≈80.2 billion per year). About 1 in 9 vehicles is a truck, in line with the US (9.3%).
Longer trips than 87% of states nationwide
Pennsylvania's average daily traffic volume is 20% lower than the national average - 5,617 vehicles per day against 6,986 - suggesting less traffic load per road - a factor worth weighing in site selection and logistics planning. In total volume terms, its road network carries about 2.9% of the national total of vehicle-miles. By volume, Pennsylvania's 5,617 vehicles per day trails 64% of states nationwide.
At 34.6 minutes, the average travel time matches the national level closely. 87% of states nationwide have a shorter average travel time than Pennsylvania's 34.6 minutes.
The congestion ratio of 16.5% runs slightly lower than the national level (12% lower) - crucial for traffic control improvement and logistics planning.
Highway vs. Non-Highway Traffic Analysis
Highway Traffic in Pennsylvania
Traffic
vehicles per day13,683
Trucks
15.8%
Average travel time
41.5 min
Congestion ratio
30.2%
Drivers’ average age
48.8 yrs
Drivers’ average income
$89,588
Highways carry about half of all travel in Pennsylvania, 49% of vehicle-miles. The average highway carries 13,683 vehicles per day, 172% more than the average non-highway road in the same area, which carries 5,028 vehicles per day.
With 20% of the road miles (8,237 miles in 56,174 segments), highways punch above their length, carrying 106,731,867 vehicle-miles traveled per day (≈39.0 billion per year).
That is more highway travel volume than 84% of states nationwide.
Higher highway truck share than 78% of states nationwide
At 15.8%, highway truck share is 21% higher than the national average. Highways here lean toward freight, so highway access is a real asset for logistics operators.
By truck concentration, highways here outrank 78% of states nationwide. By raw truck volume, Pennsylvania carries more highway trucks than 66% of states nationwide.
Non-highway Traffic in Pennsylvania
Traffic
vehicles per day5,028
Trucks
5.8%
Average travel time
34.2 min
Congestion ratio
15.7%
Drivers’ average age
48.4 yrs
Drivers’ average income
$89,020
Local roads carry about half of all travel in Pennsylvania, 51% of vehicle-miles. On the average non-highway road, that comes to 5,028 vehicles per day.
Local roads make up 80% of the monitored road miles (33,137 miles in 769,361 segments) but carry less than their share of travel: 112,951,218 vehicle-miles traveled per day (≈41.2 billion per year). The truck share on non-highway roads is 5.8%.
Older drivers than 92% of states nationwide
Non-highway roads carry a truck concentration that's 63% lower than the highway network.
Non-highway congestion (15.7%) runs slightly lower than the national level (14% lower).
Trip origins here have higher average income than 60% of states nationwide. The driver population here skews older than 92% of states nationwide.
Time-of-Day & Seasonal Patterns
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–9:00 AM and a long afternoon plateau from 12:00 PM to 6:00 PM, with volumes reaching approximately 67% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 16% below weekday levels, the usual weekend dip.
Seasonal Fluctuation
Busy season:
May–July is the high season, with volumes +4% versus the annual average.
Lowest month:
January is the quietest month, with volumes -10% versus the annual average - the usual winter low.
Data Finding: Hourly & Seasonal Patterns
In Pennsylvania, the peak hour concentrates about 7% of the day's traffic, and there is a noticeable seasonal swing of +4% in high season.
Pennsylvania vs. United States Traffic Comparison
Pennsylvania's biggest difference from the United States average is its highway truck share, 21% above it. Its average daily traffic per road, by contrast, is 20% below.
Metric
Pennsylvania
United States average
Difference
Traffic
5,617
6,986
-19.6%
Truck % (Total Traffic)
10.6%
9.3%
+13.8%
Truck % (Highway)
15.8%
13.1%
+20.5%
Avg. Travel Time
34.6 min
33.3 min
+4.0%
How Pennsylvania compares
Pennsylvania moves more traffic than any nearby state
Against the 4 nearest states, Pennsylvania moves 2.8 times the total daily travel and is 23.7% less congested; it has the quietest roads of the five. It is bigger rather than busier: the extra travel comes from carrying more road, not from heavier roads.
Pennsylvania and the 4 nearest states by centroid distance, with the United States average for scale.
Together, those five counties carry 28.9% of all the vehicle-miles measured in the state.
Ranked by daily vehicle-miles, across the 67 counties in Pennsylvania with a published traffic page. Vehicle-miles is total travel, so this ranks by traffic MOVED rather than by how busy a typical road is.
Together, those five counties carry just 6.6% of the truck vehicle-miles driven in the state. Truck share says where trucks dominate the mix; it does not say where the freight is.
Ranked by truck share of all traffic, across the same 67 counties, shown with the traffic volume that share is measured against.
The top three roads on this list in Pennsylvania average 95,508 vehicles a day, 17.0 times the state average of 5,617 across all its monitored roads.
Delaware Expressway in Philadelphia County tops the list with 102,182 vehicles a day, 9,055 of them trucks (8.9%). American Legion Memorial Highway in Lebanon County carries the most trucks on the list, 14,382 a day (27.9% of its traffic), although it is not among the 10 busiest roads overall.
Freight stands out on I 80 in Jefferson County and 78th Division Highway in Lebanon County: trucks are 49.6% and 39.5% of the traffic there, against 10.6% state-wide.
Trips using Pennsylvania Turnpike in Somerset County are long: a median of 83.9 minutes against 34.6 state-wide, the mark of a through route.
Mid County Expressway in Montgomery County draws drivers from wealthier areas: their neighborhoods average $137,563 in household income, 55% above the state's $89,006, while those on Pennsylvania Turnpike in Somerset County average $61,069, 31% below it.
Ranked by daily traffic (AADT)
Only named roads are listed. Some unnamed segments, such as ramps or unlabeled carriageways, may carry as much traffic as the roads shown.
Cars and light vehiclesTrucks
1Delaware ExpresswayPhiladelphia County · Motorway · 102,182vehicles9,055trucks · 8.9%
Mid County Expressway is a trunk route for the state, carrying 16.3 times the state average on its busiest stretch; trucks are 9.9% of it, below the state-wide 10.6%.
4Schuylkill ExpresswayMontgomery County · Motorway · 84,801vehicles8,701trucks · 10.3%
Roosevelt Expressway is a trunk route for the state, carrying 13.6 times the state average on its busiest stretch; trucks are 7.5% of it, below the state-wide 10.6%.
Ranked by trucks per day
Only named roads are listed. Some unnamed segments, such as ramps or unlabeled carriageways, may carry as much traffic as the roads shown.
Cars and light vehiclesTrucks
1American Legion Memorial HighwayLebanon County · Motorway · 51,491vehicles14,382trucks · 27.9%
George N Wade Bridge is a trunk route for the state, carrying 11.8 times the state average on its busiest stretch; trucks are 18.2% of it, above the state-wide 10.6%.
7William Penn HighwayLebanon County · Motorway · 35,705vehicles11,706trucks · 32.8%
On its busiest stretch, I 80 carries 3.9 times the state average; trucks are 49.6% of it, above the state-wide 10.6%.
How to read these road counts
The first number is AADT, annual average daily traffic: the vehicles passing a point on an average day, both directions combined and trucks included. On a divided highway both carriageways are added together.
Traffic changes along a road, with more near interchanges and towns and less in open country. Every figure for a road describes its busiest stretch in the county, so the two rankings show the same numbers for the same road.
The second number is the trucks on that stretch, a part of its AADT. The bar splits the AADT into cars and light vehicles (blue) and trucks (amber).
The average monitored road in Pennsylvania carries 5,617 vehicles per day, 20% less than the national average of 6,986.
Pennsylvania carries more highway trucks by raw volume than 66% of states nationwide, at roughly 2,155 per day.
The average trip in Pennsylvania takes 34.6 minutes, about the same as the national average, delays at signals and congestion included.
Weekday traffic has two busy windows: AM peak 7:00 AM–9:00 AM and a long afternoon plateau from 12:00 PM to 6:00 PM - about 67% above the daily average.
Trucks make up about 10.6% of all traffic in Pennsylvania, rising to 15.8% on highways, where long-haul freight concentrates.
Drivers on Pennsylvania roads have a median age of 48 years, older than the national average of 46, and the median household income of the neighborhoods trips originate from averages $89,006, in line with the national average.
Traffic in Pennsylvania peaks in May–July, when volumes run 4% above the annual average. January is the quietest month, averaging 5,028 vehicles per day, 10% below the annual average.
About 102,182 vehicles per day in both directions on its busiest stretch, including 9,055 trucks (8.9%). Traffic is lower on its quieter stretches; TrafficZoom shows the count for every segment.
About 14,382 trucks per day on its busiest stretch, 27.9% of its 51,491 vehicles.
Data Sources & Methodology
The data presented on this page is derived from TrafficZoom's proprietary analytics platform, which aggregates and normalizes information from multiple sources, including:
Mobile device location data (anonymized and aggregated)
