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Traffic heat map of Carroll County, Tennessee: 287 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 40 and Veterans Drive

Carroll County, Tennessee Traffic Counts

Traffic analytics for Carroll County, Tennessee, calculated from real-world mobile and sensor networks on 2,017 road segments (287 road miles, about 752 ft each). Its busiest road, I 40, carries 28,148 vehicles a day, 10.2 times the average road. 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
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Total Traffic Volume & Performance in Carroll County, Tennessee

Traffic

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

vehicles per day2,750
Trucks

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

14.2%
Average travel time

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

36.4 min
Congestion ratio

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

7.9%
Drivers’ average age

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

48.6 yrs
Drivers’ average income

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

$58,570

A typical monitored road in Carroll County, Tennessee sees 2,750 vehicles per day, while its 287 miles of monitored roads together handle 838,636 vehicle-miles traveled per day (≈306 million per year). Trucks are 14.2% of traffic, more than the 11.3% across Tennessee.

Longer trips than 93% of counties in Tennessee

Carroll's average daily traffic volume is 62% lower than the state average - 2,750 vehicles per day against 7,251 - suggesting less traffic load per road - very light roads: easy truck access, but little passing trade for roadside retail. In total volume terms, its road network carries about 0.5% of Tennessee's statewide total of vehicle-miles. By volume, Carroll's 2,750 vehicles per day trails 81% of counties in Tennessee.

The average trip takes 36.4 minutes, 14% higher than the state level. 93% of counties in Tennessee have a shorter average travel time than Carroll's 36.4 minutes.

Congestion runs 51% lower than the state level, at a ratio of 7.9%, which means smoother traffic flow - delays are rare enough to plan travel times almost to the minute.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Carroll County, Tennessee

Trafficvehicles per day4,194
Trucks19.5%
Average travel time45.8 min
Congestion ratio8.0%
Drivers’ average age48.5 yrs
Drivers’ average income$57,310

Travel in Carroll County, Tennessee splits roughly evenly, with about half of it (53% of vehicle-miles) on highways. The average highway carries 4,194 vehicles per day, 70% more than the average non-highway road in the same area, which carries 2,468 vehicles per day.

Highways make up 25% of the monitored road miles (73 miles, 329 segments), so they carry more than their share: 442,584 vehicle-miles traveled per day (≈162 million per year).

Higher highway truck share than 73% of counties in Tennessee

At 19.5%, highway truck share is 25% higher than the state average. Highways here lean toward freight, so highway access is a real asset for logistics operators.

Carroll's highway truck share (19.5%) is higher than 73% of counties in Tennessee. 52% of counties in Tennessee see more highway trucks per day than Carroll's roughly 817.

non-highway traffic icon

Non-highway Traffic in Carroll County, Tennessee

Trafficvehicles per day2,468
Trucks8.2%
Average travel time34.6 min
Congestion ratio7.8%
Drivers’ average age48.6 yrs
Drivers’ average income$59,288

Travel in Carroll County, Tennessee splits roughly evenly, with about half of it (47% of vehicle-miles) on local roads. A typical local road sees 2,468 vehicles per day.

Spread over 214 miles and 1,688 segments, 75% of the road network, local roads carry a lighter load per mile: 396,052 vehicle-miles traveled per day (≈145 million per year). Trucks make up 8.2% of non-highway traffic, about 1 in 12 vehicles.

Local congestion 49% below the Tennessee average

Compared to highways, non-highway routes see 58% fewer trucks by share.

At 49% lower than the state level, the non-highway congestion ratio of 7.8% signals easier movement on local roads.

Carroll's average driver income is lower than 59% of counties in Tennessee. The driver population here skews older than 53% of counties in Tennessee.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

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

Carroll County vs. Tennessee Traffic Comparison

Carroll County's biggest difference from the Tennessee average is its average daily traffic per road, 62% below it. Its truck share, by contrast, is 25% above.

MetricCarroll CountyTennessee averageDifference
Traffic2,7507,251-62.1%
Truck % (Total Traffic)14.2%11.3%+24.8%
Truck % (Highway)19.5%15.6%+24.7%
Avg. Travel Time36.4 min32.1 min+13.6%

How Carroll County compares

Carroll County has the quietest roads among its nearby counties

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

Carroll 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
Carroll County2,75014.2%838,63636.4 min7.9%
Benton County, Tennessee3,29417.5%608,96132.1 min11.1%
Henderson County, Tennessee3,65318.3%1,452,34833.5 min8.6%
Henry County, Tennessee3,9038.7%766,27335.2 min9.9%
Gibson County, Tennessee3,6818.3%963,95833.7 min7.7%
Tennessee average7,25111.3%N/A32.1 min16.1%

Carroll County ranked within Tennessee

Average travel time places Carroll County #8 of 95 in Tennessee - the top quarter of the state.

Carroll County ranked among 95 county-level areas in Tennessee (1 = highest); measures without data in every county rank a smaller field, down to 86.
MeasureCarroll CountyTennessee rank
Traffic volume (AADT)2,750#77 of 95
Highway vehicle-miles per day442,584#50 of 86
Truck share on highways19.5%#24 of 86
Highway trucks per day817#45 of 86
Average travel time36.4 min#8 of 95
Average driver income$58,570#56 of 95
Average driver age48.6 yrs#45 of 95

Carroll County ranks #8 of 95 on average travel time but #77 of 95 on average daily traffic volume - the two describe the same roads and are worth reading together rather than either on its own.

Busiest roads in Carroll County, Tennessee

On their busiest stretches, the three busiest roads in Carroll County carry 15,357 vehicles a day on average, 5.6 times the typical road in the county (2,750).

I 40 is the busiest road, at 28,148 vehicles a day, 7,205 of them trucks (25.6%). No other road comes close: Veterans Drive, in second place, carries 9,558. It tops the truck ranking too, with the most trucks.

Trips using I 40 are long: a median of 64.3 minutes against 36.4 county-wide, the mark of a through route.

Trucks make up 25.6% of traffic on I 40, against 14.2% across all roads in the county.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 40Motorway · 28,148vehicles7,205trucks · 25.6%
Road class
Motorway
Congestion ratio
39.4%
Median trip time
64.3 min
Drivers’ median age
47.1 yrs
Drivers’ average income
$64,434

Delays build on I 40: its congestion ratio of 39% over free-flow time is well above the county's 8%.

2Veterans DriveTrunk road · 9,558vehicles995trucks · 10.4%
Road class
Trunk road
Congestion ratio
10.2%
Median trip time
41.1 min
Drivers’ median age
48.6 yrs
Drivers’ average income
$54,349

Veterans Drive carries 3.5 times the county average on its busiest stretch, where the median trip lasts 41.1 minutes.

3Highland DriveTrunk road · 8,366vehicles1,018trucks · 12.2%
Road class
Trunk road
Congestion ratio
9.3%
Median trip time
40.9 min
Drivers’ median age
50.3 yrs
Drivers’ average income
$52,738

At 3.0 times the county average, Highland Drive draws drivers from neighborhoods averaging $52,738 in household income.

4TN 22Trunk road · 7,970vehicles956trucks · 12.0%
Road class
Trunk road
Congestion ratio
8.7%
Median trip time
43.8 min
Drivers’ median age
48.5 yrs
Drivers’ average income
$57,026

The busiest stretch of TN 22 carries 2.9 times the county average; trucks are 12.0% of it, below the county-wide 14.2%.

5SR 22 BypassTrunk road · 7,707vehicles839trucks · 10.9%
Road class
Trunk road
Median trip time
43.4 min
Drivers’ median age
48.0 yrs
Drivers’ average income
$54,619

On its busiest stretch, SR 22 Bypass carries 2.8 times the county average; trucks are 10.9% of it, below the county-wide 14.2%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 40Motorway · #1 by traffic28,148vehicles7,205trucks · 25.6%
2Highland DriveTrunk road · #3 by traffic8,366vehicles1,018trucks · 12.2%
3Veterans DriveTrunk road · #2 by traffic9,558vehicles995trucks · 10.4%
4Austin Peay Memorial HighwayTrunk road · 7,577vehicles970trucks · 12.8%
Road class
Trunk road
Congestion ratio
8.6%
Median trip time
44.5 min
Drivers’ median age
50.1 yrs
Drivers’ average income
$51,449

Austin Peay Memorial Highway peaks at 7,577 vehicles a day, 2.8 times the county average; trucks are 12.8% of it, below the county-wide 14.2%.

5TN 22Trunk road · #4 by traffic7,970vehicles956trucks · 12.0%
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

CarrollDepartment 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 Carroll County

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

Need segment-level traffic data?

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