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Traffic heat map of Arlington County, Virginia: 244 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Henry G. Shirley Memorial Highway

Arlington County, Virginia Traffic Counts

TrafficZoom tracks traffic on 244 road miles in Arlington County, Virginia, divided into 8,058 segments averaging 160 ft. Its drivers come from neighborhoods among the top 5 counties in Virginia for household income. 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.
Data current as of:
Q3 2026
Updated:
September 29, 2026
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total traffic icon

Total Traffic Volume & Performance in Arlington County, Virginia

Traffic

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

vehicles per day7,743
Trucks

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

6.3%
Average travel time

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

34.9 min
Congestion ratio

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

16.4%
Drivers’ average age

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

41.6 yrs
Drivers’ average income

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

$154,129

A typical monitored road in Arlington County, Virginia sees 7,743 vehicles per day, while its 244 miles of monitored roads together handle 2,258,171 vehicle-miles traveled per day (≈824 million per year). About 1 in 16 vehicles is a truck, fewer than the 1 in 10 across Virginia.

Longer trips than 79% of counties in Virginia

Arlington sees 45% higher average daily traffic volume than the state average (7,743 vehicles per day against 5,349), suggesting more demand on each road - more exposure for roadside businesses, and more competition for road space. Network-wide, Arlington accounts for about 1.0% of Virginia's statewide total of vehicle-miles. By volume, Arlington's 7,743 vehicles per day outpaces 77% of counties in Virginia.

At 34.9 minutes, the average travel time is 10% higher than the state level. Its average travel time of 34.9 minutes is longer than 79% of counties in Virginia.

The congestion ratio of 16.4% is in line with the state level.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Arlington County, Virginia

Trafficvehicles per day16,294
Trucks6.8%
Average travel time36.4 min
Congestion ratio27.6%
Drivers’ average age42.1 yrs
Drivers’ average income$148,275

Highways carry about half of all travel in Arlington County, Virginia, 50% of vehicle-miles. The average highway carries 16,294 vehicles per day, 130% more than the average non-highway road in the same area, which carries 7,099 vehicles per day.

With 27% of the road miles (65 miles in 565 segments), highways punch above their length, carrying 1,121,987 vehicle-miles traveled per day (≈410 million per year).

70% of counties in Virginia move less traffic on their highways.

Lower highway truck share than 97% of counties in Virginia

At 6.8%, highway truck share is 48% lower than the state average. Highways here carry mainly commuter and local trips, with little through freight.

By truck concentration, highways here trail 97% of counties in Virginia. Arlington's highway truck count is lower than 54% of counties in Virginia, at roughly 1,115 trucks per day.

non-highway traffic icon

Non-highway Traffic in Arlington County, Virginia

Trafficvehicles per day7,099
Trucks5.7%
Average travel time34.8 min
Congestion ratio15.5%
Drivers’ average age41.2 yrs
Drivers’ average income$156,950

Local roads carry about half of all travel in Arlington County, Virginia, 50% of vehicle-miles. On the average non-highway road, that comes to 7,099 vehicles per day.

Local roads make up 73% of the monitored road miles (179 miles in 7,493 segments) but carry less than their share of travel: 1,136,184 vehicle-miles traveled per day (≈415 million per year). The truck share on non-highway roads is 5.7%.

Drivers from higher-income areas than 98% of counties in Virginia

Compared to highways, non-highway routes see 17% fewer trucks by share.

At 15.5%, the non-highway congestion ratio matches the state level closely.

Arlington's average driver income is higher than 98% of counties in Virginia. Arlington's median driver age is lower than 98% of counties in Virginia.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
A long morning plateau from 7:00 AM to 12:00 PM and a long afternoon plateau from 12:00 PM to 8:00 PM, with volumes reaching approximately 44% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 10% below weekday levels, the usual weekend dip.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
Traffic is nearly flat through the year: even April–June, the busiest stretch, runs only +3% versus the annual average.
Lowest month:
January is the quietest month, with volumes -9% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Arlington County, Virginia, 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).

Arlington County vs. Virginia Traffic Comparison

Of the four measures, highway truck share differs most: Arlington County runs 48% below the Virginia average. Its average daily traffic per road, by contrast, is 45% above.

MetricArlington CountyVirginia averageDifference
Traffic7,7435,349+44.8%
Truck % (Total Traffic)6.3%9.6%-34.6%
Truck % (Highway)6.8%13.1%-47.8%
Avg. Travel Time34.9 min31.7 min+10.1%

How Arlington County compares

Arlington County against nearby counties and cities

Arlington 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 fourth busiest roads of the five. The same kind of road, simply more of it: traffic per road matches the areas around it while the network itself is larger.

Arlington County and the 4 nearest county-level areas by centroid distance, with the Virginia average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Arlington County7,7436.3%2,258,17134.9 min16.4%
Falls Church City, Virginia10,4346.5%129,96534.1 min31.3%
Alexandria City, Virginia7,6016.2%1,376,11531.9 min16.6%
District of Columbia8,1686.0%4,142,34338.8 min21.6%
Fairfax City, Virginia9,6616.6%300,90532.2 min13.1%
Virginia average5,3499.6%N/A31.7 min16.8%

Arlington County ranked within Virginia

Arlington County sits in the bottom quarter of the Virginia field on average driver age, at #130 of 133.

Arlington County ranked among 133 county-level areas in Virginia (1 = highest); measures without data in every county rank a smaller field, down to 118.
MeasureArlington CountyVirginia rank
Traffic volume (AADT)7,743#31 of 133
Highway vehicle-miles per day1,121,987#36 of 118
Truck share on highways6.8%#114 of 118
Highway trucks per day1,115#64 of 118
Average travel time34.9 min#29 of 133
Average driver income$154,129#4 of 133
Average driver age41.6 yrs#130 of 133

The two ends of this table sit far apart: #4 of 133 on average driver income, against #130 of 133 on average driver age.

Busiest roads in Arlington County, Virginia

Traffic concentrates on a few corridors: the three busiest roads average 50,908 vehicles a day, against 7,743 on the average road in Arlington County.

Henry G. Shirley Memorial Highway leads with 67,057 vehicles a day, 4,747 of them trucks (7.1%). It also carries the most trucks.

Trips using Entrance Road are long: a median of 49.4 minutes against 34.9 county-wide, the mark of a through route.

Drivers on Columbia Pike come from neighborhoods with an average household income of $108,358, 30% below the county average of $154,129.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Henry G. Shirley Memorial HighwayMotorway · 67,057vehicles4,747trucks · 7.1%
Road class
Motorway
Congestion ratio
36.5%
Median trip time
36.1 min
Drivers’ median age
42.6 yrs
Drivers’ average income
$130,980

Delays build on Henry G. Shirley Memorial Highway: its congestion ratio of 37% over free-flow time is well above the county's 16%.

2Custis Memorial ParkwayMotorway · 53,194vehicles3,555trucks · 6.7%
Road class
Motorway
Congestion ratio
46.2%
Median trip time
40.7 min
Drivers’ median age
43.0 yrs
Drivers’ average income
$171,045

Travel on Custis Memorial Parkway's busiest stretch runs 46% over free-flow time, against 16% across the county, so expect slower peak hours.

3Arlington BoulevardTrunk road · 32,474vehicles1,612trucks · 5.0%
Road class
Trunk road
Median trip time
30.3 min
Drivers’ median age
40.5 yrs
Drivers’ average income
$133,534

Arlington Boulevard carries 4.2 times the county average at its busiest, 1,612 of them trucks (5.0%, below the county-wide 6.3%).

4Richmond HighwayTrunk road · 28,934vehicles2,515trucks · 8.7%
Road class
Trunk road
Median trip time
42.0 min
Drivers’ median age
40.5 yrs
Drivers’ average income
$134,618

Richmond Highway carries 3.7 times the county average on its busiest stretch, where the median trip lasts 42.0 minutes.

5Columbia PikePrimary road · 27,183vehicles1,315trucks · 4.8%
Road class
Primary road
Median trip time
30.4 min
Drivers’ median age
41.0 yrs
Drivers’ average income
$108,358

At 3.5 times the county average, Columbia Pike draws drivers from neighborhoods averaging $108,358 in household income.

Ranked by trucks per day

Cars and light vehiclesTrucks
1Henry G. Shirley Memorial HighwayMotorway · #1 by traffic67,057vehicles4,747trucks · 7.1%
2Custis Memorial ParkwayMotorway · #2 by traffic53,194vehicles3,555trucks · 6.7%
3Richmond HighwayTrunk road · #4 by traffic28,934vehicles2,515trucks · 8.7%
4Entrance RoadPrimary road · 15,576vehicles1,682trucks · 10.8%
Road class
Primary road
Median trip time
49.4 min
Drivers’ median age
42.0 yrs
Drivers’ average income
$127,043

The busiest stretch of Entrance Road carries 2.0 times the county average; trucks are 10.8% of it, above the county-wide 6.3%.

5Arlington BoulevardTrunk road · #3 by traffic32,474vehicles1,612trucks · 5.0%
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

ArlingtonDepartment 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 Arlington County

The same traffic breakdown for the areas closest to Arlington County, Virginia.

Need segment-level traffic data?

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