Need segment-level traffic data?

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

Get insights →
Traffic heat map of Carter County, Tennessee: 181 miles of roads shaded from blue (light) to red (heavy traffic), busiest on Elk Avenue and US 321

Carter County, Tennessee Traffic Counts

Traffic analytics for Carter County, Tennessee, calculated from real-world mobile and sensor networks on 3,200 road segments (181 road miles, about 298 ft each). Its highways carry the lowest truck share of any county in Tennessee, 6.6%. Use the figures below to move from assumptions to certainty on retail locations, logistics and road planning.
Data sourced from TrafficZoom's proprietary analytics platform.
Data current as of:
Q3 2026
Updated:
September 29, 2026
Find my place
total traffic icon

Total Traffic Volume & Performance in Carter County, Tennessee

Traffic

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

vehicles per day5,837
Trucks

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

5.8%
Average travel time

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

29.6 min
Congestion ratio

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

15.8%
Drivers’ average age

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

49.2 yrs
Drivers’ average income

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

$53,268

The average monitored road in Carter County, Tennessee carries 5,837 vehicles per day. Across its 181 miles of monitored roads, that adds up to 1,022,625 vehicle-miles traveled per day (≈373 million per year). Traffic here is mostly passenger cars: only 5.8% trucks, against 11.3% across Tennessee.

Shorter trips than 90% of counties in Tennessee

At 5,837 vehicles per day, the average monitored road in Carter carries 19% less traffic than the state average of 7,251, suggesting less demand on each road - a critical factor for logistics and site planning. Network-wide, Carter accounts for about 0.6% of Tennessee's statewide total of vehicle-miles. Carter carries more traffic than 78% of counties in Tennessee.

The average trip takes 29.6 minutes, 8% lower than the state level. 90% of counties in Tennessee have a longer average travel time than Carter's 29.6 minutes.

At 15.8%, the congestion ratio matches the state level closely.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Carter County, Tennessee

Trafficvehicles per day13,701
Trucks6.6%
Average travel time31.5 min
Congestion ratio24.5%
Drivers’ average age48.8 yrs
Drivers’ average income$53,420

Highways carry about half of all travel in Carter County, Tennessee, 55% of vehicle-miles. The average highway carries 13,701 vehicles per day, 242% more than the average non-highway road in the same area, which carries 4,011 vehicles per day.

Highways make up 33% of the monitored road miles (59 miles, 603 segments), so they carry more than their share: 558,016 vehicle-miles traveled per day (≈204 million per year).

That is more highway travel volume than 52% of counties in Tennessee.

The lowest highway truck share of any county in Tennessee

At 6.6%, highway truck share is 58% lower than the state average. Highways here carry mainly commuter and local trips, with little through freight.

At 6.6%, Carter's highway truck concentration is the lowest in Tennessee. By raw truck volume, Carter carries fewer highway trucks than 66% of counties in Tennessee.

non-highway traffic icon

Non-highway Traffic in Carter County, Tennessee

Trafficvehicles per day4,011
Trucks4.8%
Average travel time29.2 min
Congestion ratio13.8%
Drivers’ average age50.2 yrs
Drivers’ average income$53,057

Local roads carry about half of all travel in Carter County, Tennessee, 45% of vehicle-miles. The average non-highway road carries 4,011 vehicles per day.

Spread over 122 miles and 2,597 segments, 67% of the road network, local roads carry a lighter load per mile: 464,609 vehicle-miles traveled per day (≈170 million per year). Trucks make up 4.8% of non-highway traffic, about 1 in 21 vehicles.

Drivers from lower-income areas than 82% of counties in Tennessee

The concentration of trucks on non-highway roads is 27% lower than on highways.

Non-highway congestion (13.8%) runs slightly lower than the state level (10% lower).

82% of counties in Tennessee see higher average driver income among trip origins than Carter. Carter's median driver age is higher than 63% of counties in Tennessee.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

In Carter County, Tennessee, the peak hour concentrates about 8% of the day's traffic.

Carter County vs. Tennessee Traffic Comparison

Carter County's biggest difference from the Tennessee average is its highway truck share, 58% below it. Its truck share is also 49% below.

MetricCarter CountyTennessee averageDifference
Traffic5,8377,251-19.5%
Truck % (Total Traffic)5.8%11.3%-48.7%
Truck % (Highway)6.6%15.6%-57.5%
Avg. Travel Time29.6 min32.1 min-7.6%

How Carter County compares

Carter County has the lowest truck share of its nearby counties

Nothing in this table sets Carter County sharply apart from the 4 areas nearest to it, though it has the third busiest roads of the five.

Carter County and the 4 nearest county-level areas by centroid distance, with the Tennessee average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Carter County5,8375.8%1,022,62529.6 min15.8%
Sullivan County, Tennessee6,1739.3%3,795,25236.1 min13.7%
Washington County, Tennessee6,2257.2%2,853,79232.0 min15.0%
Johnson County, Tennessee3,0887.9%231,46331.7 min8.7%
Avery County, North Carolina3,5956.7%522,87835.5 min11.6%
Tennessee average7,25111.3%N/A32.1 min16.1%

Carter County ranked within Tennessee

No county-level area in Tennessee records a lower truck share on highways than Carter County.

Carter County ranked among 95 county-level areas in Tennessee (1 = highest); measures without data in every county rank a smaller field, down to 86.
MeasureCarter CountyTennessee rank
Traffic volume (AADT)5,837#22 of 95
Highway vehicle-miles per day558,016#42 of 86
Truck share on highways6.6%#86 of 86
Highway trucks per day908#57 of 86
Average travel time29.6 min#86 of 95
Average driver income$53,268#78 of 95
Average driver age49.2 yrs#36 of 95

The two ends of this table sit far apart: #22 of 95 on average daily traffic volume, against #86 of 86 on truck share on highways.

Busiest roads in Carter County, Tennessee

Traffic concentrates on a few corridors: the three busiest roads average 26,100 vehicles a day, against 5,837 on the average road in Carter County.

Elk Avenue leads with 29,275 vehicles a day, 1,181 of them trucks (4.0%). James H. Quillen Parkway carries the most trucks, 1,729 a day (8.8% of its traffic), although it ranks #5 for all traffic.

Trips using James H. Quillen Parkway are long: a median of 39.9 minutes against 29.6 county-wide, the mark of a through route.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Elk AvenueTrunk road · 29,275vehicles1,181trucks · 4.0%
Road class
Trunk road
Congestion ratio
45.2%
Median trip time
29.5 min
Drivers’ median age
48.0 yrs
Drivers’ average income
$53,807

Delays build on Elk Avenue: its congestion ratio of 45% over free-flow time is well above the county's 16%.

2US 321Motorway · 25,160vehicles1,671trucks · 6.6%
Road class
Motorway
Congestion ratio
26.0%
Median trip time
32.5 min
Drivers’ median age
48.1 yrs
Drivers’ average income
$55,662

At 4.3 times the county average, US 321 draws drivers from neighborhoods averaging $55,662 in household income.

3Broad StreetTrunk road · 23,866vehicles869trucks · 3.6%
Road class
Trunk road
Congestion ratio
33.1%
Median trip time
30.3 min
Drivers’ median age
48.6 yrs
Drivers’ average income
$52,578

Travel on Broad Street's busiest stretch runs 33% over free-flow time, against 16% across the county, so expect slower peak hours.

4Veterans Memorial ParkwayTrunk road · 20,812vehicles997trucks · 4.8%
Road class
Trunk road
Congestion ratio
23.6%
Median trip time
35.2 min
Drivers’ median age
50.2 yrs
Drivers’ average income
$49,758

The busiest stretch of Veterans Memorial Parkway carries 3.6 times the county average; trucks are 4.8% of it, below the county-wide 5.8%.

5James H. Quillen ParkwayMotorway · 19,657vehicles1,729trucks · 8.8%
Road class
Motorway
Congestion ratio
20.8%
Median trip time
39.9 min
Drivers’ median age
48.5 yrs
Drivers’ average income
$58,635

On its busiest stretch, James H. Quillen Parkway carries 3.4 times the county average; trucks are 8.8% of it, above the county-wide 5.8%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1James H. Quillen ParkwayMotorway · #5 by traffic19,657vehicles1,729trucks · 8.8%
2US 321Motorway · #2 by traffic25,160vehicles1,671trucks · 6.6%
3Elk AvenueTrunk road · #1 by traffic29,275vehicles1,181trucks · 4.0%
4Veterans Memorial ParkwayTrunk road · #4 by traffic20,812vehicles997trucks · 4.8%
5Broad StreetTrunk road · #3 by traffic23,866vehicles869trucks · 3.6%
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).
  • 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

CarterDepartment 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.
link arrow icon
Data current as of:
Q3 2026

Explore further

TrafficZoom platform

— street-level analytics and custom corridor reports.

Map AI

— demographics, housing and mobility data.

Counties near Carter County

The same traffic breakdown for the areas closest to Carter County, Tennessee.

Need segment-level traffic data?

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