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Traffic heat map of Allegheny County, Pennsylvania: 2,259 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Penn-Lincoln Parkway

Allegheny County, Pennsylvania Traffic Counts

It moves more highway traffic than any other county in Pennsylvania. This page breaks down traffic in Allegheny County, Pennsylvania across 2,259 miles of monitored roads split into 64,421 segments, using multi-sourced mobile and sensor data. It goes beyond raw counts to truck flow, congestion and who is driving, so site selection and route planning rest on evidence.
Data sourced from TrafficZoom's proprietary analytics platform.
Data current as of:
Q3 2026
Updated:
September 29, 2026
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Total Traffic Volume & Performance in Allegheny County, Pennsylvania

Traffic

The average number of vehicles that travel each day over any road in the road network.

vehicles per day6,752
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.

34.8 min
Congestion ratio

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

17.9%
Drivers’ average age

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

48.1 yrs
Drivers’ average income

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

$98,243

Our data shows 6,752 vehicles per day on the average road in Allegheny County, Pennsylvania, and 17,795,718 vehicle-miles traveled per day (≈6.5 billion per year) across its 2,259 miles of monitored roads. Trucks are a smaller part of the mix than across Pennsylvania: 6.7% against 10.6%.

Busier roads than 92% of counties in Pennsylvania

Allegheny's average daily traffic volume is 20% higher than the state average - 6,752 vehicles per day against 5,617 - suggesting more traffic load per road - a factor worth weighing in site selection and logistics planning. Across the whole network, that travel is about 8.1% of Pennsylvania's statewide total. Allegheny carries more traffic than 92% of counties in Pennsylvania.

Journey times here (34.8 minutes on average) closely track the state level. On travel time, Allegheny runs longer than 70% of counties in Pennsylvania.

Congestion is somewhat higher than the state level, at a ratio of 17.9% (8% higher).

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Allegheny County, Pennsylvania

Trafficvehicles per day18,962
Trucks8.9%
Average travel time38.5 min
Congestion ratio34.5%
Drivers’ average age48.0 yrs
Drivers’ average income$98,489

Highways carry about half of all travel in Allegheny County, Pennsylvania, 47% of vehicle-miles. The average highway carries 18,962 vehicles per day, 223% more than the average non-highway road in the same area, which carries 5,866 vehicles per day.

With 20% of the road miles (461 miles in 4,360 segments), highways punch above their length, carrying 8,329,574 vehicle-miles traveled per day (≈3.0 billion per year).

That is the most highway travel volume of any county in Pennsylvania.

Lower highway truck share than 95% of counties in Pennsylvania

At 8.9%, highway truck share is 43% lower than the state average. Highways here carry mainly commuter and local trips, with little through freight.

By truck concentration, highways here trail 95% of counties in Pennsylvania. By raw truck volume, Allegheny carries fewer highway trucks than 62% of counties in Pennsylvania.

non-highway traffic icon

Non-highway Traffic in Allegheny County, Pennsylvania

Trafficvehicles per day5,866
Trucks4.8%
Average travel time34.5 min
Congestion ratio16.7%
Drivers’ average age48.3 yrs
Drivers’ average income$98,089

Local roads carry about half of all travel in Allegheny County, Pennsylvania, 53% of vehicle-miles. A typical local road sees 5,866 vehicles per day.

Spread over 1,798 miles and 60,061 segments, 80% of the road network, local roads carry a lighter load per mile: 9,466,144 vehicle-miles traveled per day (≈3.5 billion per year). About 1 in 21 vehicles on non-highway roads is a truck (4.8%).

Drivers from higher-income areas than 94% of counties in Pennsylvania

The concentration of trucks on non-highway roads is 46% lower than on highways.

Non-highway congestion (16.7%) runs slightly higher than the state level (6% higher).

Allegheny's average driver income is higher than 94% of counties in Pennsylvania. 84% of counties in Pennsylvania have an older driver population than Allegheny.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

In Allegheny County, Pennsylvania, the peak hour concentrates about 7% of the day's traffic.

Allegheny County vs. Pennsylvania Traffic Comparison

The highway truck share sets Allegheny County apart: 43% below the Pennsylvania average. Its truck share is also 37% below.

MetricAllegheny CountyPennsylvania averageDifference
Traffic6,7525,617+20.2%
Truck % (Total Traffic)6.7%10.6%-36.7%
Truck % (Highway)8.9%15.8%-43.4%
Avg. Travel Time34.8 min34.6 min+0.4%

How Allegheny County compares

Allegheny County moves more traffic than any nearby county

Set against the average of the 4 areas nearest to it, Allegheny County moves 7.9 times the total daily travel; it has the second busiest roads of the five. Bigger and busier at once: more road than the areas around it and heavier traffic on it, which makes it the centre of gravity for travel in this part of the map.

Allegheny 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
Allegheny County6,7526.7%17,795,71834.8 min17.9%
Washington County, Pennsylvania4,00813.2%4,731,55632.5 min13.1%
Beaver County, Pennsylvania3,8749.5%2,868,99433.8 min12.3%
Hancock County, West Virginia6,9716.9%597,65928.1 min21.3%
Brooke County, West Virginia6,3778.1%765,98328.9 min20.6%
Pennsylvania average5,61710.6%N/A34.6 min16.5%

Allegheny County ranked within Pennsylvania

On highway travel volume, Allegheny County tops the Pennsylvania field outright.

Allegheny County ranked among 67 county-level areas in Pennsylvania (1 = highest); measures without data in every county rank a smaller field, down to 64.
MeasureAllegheny CountyPennsylvania rank
Traffic volume (AADT)6,752#6 of 67
Highway vehicle-miles per day8,329,574#1 of 64
Truck share on highways8.9%#61 of 64
Highway trucks per day1,690#40 of 64
Average travel time34.8 min#21 of 67
Average driver income$98,243#5 of 67
Average driver age48.1 yrs#56 of 67

Allegheny County ranks #1 of 64 on highway travel volume but #61 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 Allegheny County, Pennsylvania

On their busiest stretches, the three busiest roads in Allegheny County carry 54,246 vehicles a day on average, 8.0 times the typical road in the county (6,752).

Penn-Lincoln Parkway is the busiest road, at 64,682 vehicles a day, 5,599 of them trucks (8.7%). It tops the truck ranking too, with the most trucks.

Trucks make up 19.7% of traffic on Pennsylvania Turnpike, against 6.7% across all roads in the county.

Trips using Pennsylvania Turnpike are long: a median of 52.9 minutes against 34.8 county-wide, the mark of a through route.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Penn-Lincoln ParkwayMotorway · 64,682vehicles5,599trucks · 8.7%
Road class
Motorway
Congestion ratio
58.5%
Median trip time
38.7 min
Drivers’ median age
47.0 yrs
Drivers’ average income
$95,412

Travel on Penn-Lincoln Parkway's busiest stretch runs 58% over free-flow time, against 18% across the county, so expect slower peak hours.

2Parkway NorthMotorway · 50,257vehicles3,440trucks · 6.8%
Road class
Motorway
Congestion ratio
46.7%
Median trip time
38.3 min
Drivers’ median age
45.3 yrs
Drivers’ average income
$115,925

A main artery: Parkway North's busiest stretch carries 7.4 times the county average; trucks are 6.8% of it, in line with the county-wide 6.7%.

3Raymond P Shafer HighwayMotorway · 47,800vehicles4,884trucks · 10.2%
Road class
Motorway
Congestion ratio
40.2%
Median trip time
42.3 min
Drivers’ median age
48.8 yrs
Drivers’ average income
$106,601

Raymond P Shafer Highway is a trunk route for the county, carrying 7.1 times the county average on its busiest stretch; trucks are 10.2% of it, above the county-wide 6.7%.

4I 79Motorway · 47,335vehicles4,548trucks · 9.6%
Road class
Motorway
Congestion ratio
49.5%
Median trip time
41.1 min
Drivers’ median age
48.2 yrs
Drivers’ average income
$122,129

I 79 is one of the more congested roads here: trips take 49% longer than at free-flow speed, against 18% county-wide.

5Veterans BridgeMotorway · 42,554vehicles2,910trucks · 6.8%
Road class
Motorway
Congestion ratio
48.9%
Median trip time
39.4 min
Drivers’ median age
45.0 yrs
Drivers’ average income
$100,869

Veterans Bridge carries 6.3 times the county average at its busiest, 2,910 of them trucks (6.8%, in line with the county-wide 6.7%).

Ranked by trucks per day

Cars and light vehiclesTrucks
1Penn-Lincoln ParkwayMotorway · #1 by traffic64,682vehicles5,599trucks · 8.7%
2Raymond P Shafer HighwayMotorway · #3 by traffic47,800vehicles4,884trucks · 10.2%
3I 79Motorway · #4 by traffic47,335vehicles4,548trucks · 9.6%
4Pennsylvania TurnpikeMotorway · 22,398vehicles4,404trucks · 19.7%
Road class
Motorway
Congestion ratio
21.1%
Median trip time
52.9 min
Drivers’ median age
50.5 yrs
Drivers’ average income
$111,333

Pennsylvania Turnpike carries 3.3 times the county average at its busiest, 4,404 of them trucks (19.7%, above the county-wide 6.7%).

5Allegheny Valley ExpresswayMotorway · 39,954vehicles3,485trucks · 8.7%
Road class
Motorway
Congestion ratio
48.1%
Median trip time
41.8 min
Drivers’ median age
48.8 yrs
Drivers’ average income
$86,564

Allegheny Valley Expressway carries 5.9 times the county average on its busiest stretch, where the median trip lasts 41.8 minutes.

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

AlleghenyDepartment 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 Allegheny County

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

Need segment-level traffic data?

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