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Traffic heat map of Philadelphia County, Pennsylvania: 841 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Delaware Expressway

Philadelphia County, Pennsylvania Traffic Counts

How busy are the roads of Philadelphia County, Pennsylvania? We measure 841 road miles, divided into 35,169 segments, with multi-sourced, cross-verified mobile and sensor data. It has the busiest roads of any county in Pennsylvania, averaging 11,596 vehicles a day. The breakdown below covers volume, trucks, congestion and driver profiles for retailers, logistics planners and engineers.
Data sourced from TrafficZoom's proprietary analytics platform.
Data current as of:
Q3 2026
Updated:
September 29, 2026
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total traffic icon

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
Trucks

The percentage of the total traffic volume composed of heavy vehicles.

6.7%
Average travel time

The average time of travel averaged among all vehicles traveling on the road network.

37.5 min
Congestion ratio

The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network.

29.2%
Drivers’ average age

Average age of residents in the geographic areas where the vehicle trips originated.

44.2 yrs
Drivers’ average income

Average income of residents in the geographic areas where the vehicle trips originated.

$74,602

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 icon

Highway Traffic in Philadelphia County, Pennsylvania

Trafficvehicles per day25,358
Trucks7.6%
Average travel time39.4 min
Congestion ratio39.3%
Drivers’ average age44.9 yrs
Drivers’ average income$85,254

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 icon

Non-highway Traffic in Philadelphia County, Pennsylvania

Trafficvehicles per day10,833
Trucks6.0%
Average travel time37.4 min
Congestion ratio28.7%
Drivers’ average age43.6 yrs
Drivers’ average income$70,140

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.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–9:00 AM and a long afternoon plateau from 12:00 PM to 8:00 PM, with volumes reaching approximately 47% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 8% below weekday levels, the usual weekend dip.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
Traffic is nearly flat through the year: even August–October, the busiest stretch, runs only +3% versus the annual average.
Lowest month:
June is the quietest month, with volumes -18% versus the annual average - an unusual summer low, when most places are at their busiest.

Data Finding: Hourly & Seasonal Patterns

In Philadelphia County, Pennsylvania, traffic is spread evenly through the day, with the busiest hour carrying only about 6%, and traffic stays steady through the year (+3% in high season).

Philadelphia County vs. Pennsylvania Traffic Comparison

Of the four measures, average daily traffic per road differs most: Philadelphia County runs 106% above the Pennsylvania average. Its highway truck share, by contrast, is 52% below.

MetricPhiladelphia CountyPennsylvania averageDifference
Traffic11,5965,617+106.4%
Truck % (Total Traffic)6.7%10.6%-36.7%
Truck % (Highway)7.6%15.8%-51.7%
Avg. Travel Time37.5 min34.6 min+8.3%

How Philadelphia County compares

Philadelphia County has the busiest roads among its nearby counties

Philadelphia County tracks the 4 areas around it closely - no measure in this table sets it far apart from the areas immediately next to it, though it has the busiest roads of the five.

Philadelphia County and the 4 nearest county-level areas by centroid distance, with the Pennsylvania average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Philadelphia County11,5966.7%11,484,88037.5 min29.2%
Camden County, New Jersey9,7387.6%8,459,54035.2 min25.9%
Delaware County, Pennsylvania9,4826.2%6,862,36035.7 min25.2%
Montgomery County, Pennsylvania9,5247.3%14,288,06435.4 min24.6%
Gloucester County, New Jersey6,76410.5%5,932,90032.0 min19.2%
Pennsylvania average5,61710.6%N/A34.6 min16.5%

Philadelphia County ranked within Pennsylvania

On average daily traffic volume, Philadelphia County tops the Pennsylvania field outright.

Philadelphia County ranked among 67 county-level areas in Pennsylvania (1 = highest); measures without data in every county rank a smaller field, down to 64.
MeasurePhiladelphia CountyPennsylvania rank
Traffic volume (AADT)11,596#1 of 67
Highway vehicle-miles per day5,113,986#3 of 64
Truck share on highways7.6%#63 of 64
Highway trucks per day1,927#17 of 64
Average travel time37.5 min#11 of 67
Average driver income$74,602#26 of 67
Average driver age44.2 yrs#66 of 67

Philadelphia County ranks #3 of 64 on highway travel volume but #63 of 64 on truck share on highways. It carries some of the heaviest highway traffic in Pennsylvania, but very little of it is freight - this is commuter and local car volume, not through-trucking.

Busiest roads in Philadelphia County, Pennsylvania

Traffic concentrates on a few corridors: the three busiest roads average 86,459 vehicles a day, against 11,596 on the average road in Philadelphia County.

Delaware Expressway is the busiest road, at 102,182 vehicles a day, 9,055 of them trucks (8.9%). It also carries the most trucks.

Schuylkill Expressway draws drivers from wealthier areas: their neighborhoods average $104,685 in household income, 40% above the county's $74,602.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Delaware ExpresswayMotorway · 102,182vehicles9,055trucks · 8.9%
Road class
Motorway
Congestion ratio
62.1%
Median trip time
41.0 min
Drivers’ median age
45.3 yrs
Drivers’ average income
$89,218

Delaware Expressway is a trunk route for the county, carrying 8.8 times the county average on its busiest stretch; trucks are 8.9% of it, above the county-wide 6.7%.

2Vine Street ExpresswayMotorway · 78,803vehicles4,614trucks · 5.9%
Road class
Motorway
Congestion ratio
66.3%
Median trip time
38.6 min
Drivers’ median age
39.6 yrs
Drivers’ average income
$100,737

Vine Street Expressway carries 6.8 times the county average at its busiest, 4,614 of them trucks (5.9%, below the county-wide 6.7%).

3Schuylkill ExpresswayMotorway · 78,393vehicles5,380trucks · 6.9%
Road class
Motorway
Congestion ratio
66.1%
Median trip time
41.5 min
Drivers’ median age
43.2 yrs
Drivers’ average income
$104,685

Schuylkill Expressway carries 6.8 times the county average on its busiest stretch, where the median trip lasts 41.5 minutes.

4Roosevelt ExpresswayMotorway · 76,140vehicles5,683trucks · 7.5%
Road class
Motorway
Congestion ratio
73.0%
Median trip time
36.2 min
Drivers’ median age
44.8 yrs
Drivers’ average income
$71,943

Delays build on Roosevelt Expressway: its congestion ratio of 73% over free-flow time is well above the county's 29%.

5Girard Point BridgeMotorway · 49,552vehicles4,520trucks · 9.1%
Road class
Motorway
Congestion ratio
75.9%
Median trip time
42.1 min
Drivers’ median age
45.6 yrs
Drivers’ average income
$90,737

Travel on Girard Point Bridge's busiest stretch runs 76% over free-flow time, against 29% across the county, so expect slower peak hours.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Delaware ExpresswayMotorway · #1 by traffic102,182vehicles9,055trucks · 8.9%
2Roosevelt ExpresswayMotorway · #4 by traffic76,140vehicles5,683trucks · 7.5%
3Schuylkill ExpresswayMotorway · #3 by traffic78,393vehicles5,380trucks · 6.9%
4Vine Street ExpresswayMotorway · #2 by traffic78,803vehicles4,614trucks · 5.9%
5Girard Point BridgeMotorway · #5 by traffic49,552vehicles4,520trucks · 9.1%
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).
  • See segment-level AADT for any road on TrafficZoom.

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)

Road sensor networks and traffic counters

Historical traffic pattern databases

Public traffic count programs published by the

PhiladelphiaDepartment of Transportation

Demographic Baseline for O-D Modeling

U.S. Census Bureau
All metrics represent estimates based on statistical modeling and are intended for strategic planning purposes.
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Data current as of:
Q3 2026

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Counties near Philadelphia County

The same traffic breakdown for the areas closest to Philadelphia County, Pennsylvania.

Need segment-level traffic data?

Identify traffic patterns street by street and analyze the exact corridors that matter to your project.