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Traffic heat map of Greene County, Tennessee: 474 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 81 and Andrew Johnson Highway

Greene County, Tennessee Traffic Counts

Traffic analytics for Greene County, Tennessee, calculated from real-world mobile and sensor networks on 4,474 road segments (474 road miles, about 559 ft each). Its busiest road, I 81, carries 31,046 vehicles a day, 8.1 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 Greene County, Tennessee

Traffic

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

vehicles per day3,830
Trucks

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

15.8%
Average travel time

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

33.1 min
Congestion ratio

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

10.8%
Drivers’ average age

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

50.6 yrs
Drivers’ average income

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

$58,154

The average monitored road in Greene County, Tennessee carries 3,830 vehicles per day. Across its 474 miles of monitored roads, that adds up to 2,298,835 vehicle-miles traveled per day (≈839 million per year). Trucks are 15.8% of traffic, more than the 11.3% across Tennessee.

Traffic 47% below the Tennessee average

At 3,830 vehicles per day, the average monitored road in Greene carries 47% less traffic than the state average of 7,251, suggesting less demand on each road - lighter roads for freight, but less passing trade for roadside retail. Network-wide, Greene accounts for about 1.3% of Tennessee's statewide total of vehicle-miles. 52% of counties in Tennessee see more traffic than Greene's 3,830 vehicles per day.

Journey times here (33.1 minutes on average) closely track the state level. 61% of counties in Tennessee have a shorter average travel time than Greene's 33.1 minutes.

At 33% lower than the state level, the 10.8% congestion ratio signals smoother traffic flow - fewer delays make delivery windows more reliable.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Greene County, Tennessee

Trafficvehicles per day9,824
Trucks19.4%
Average travel time38.4 min
Congestion ratio22.5%
Drivers’ average age50.7 yrs
Drivers’ average income$58,307

Highways carry most of the traffic in Greene County, Tennessee: 73% of all vehicle-miles. The average highway carries 9,824 vehicles per day, 294% more than the average non-highway road in the same area, which carries 2,495 vehicles per day.

Highways make up 31% of the monitored road miles (146 miles, 815 segments), so they carry more than their share: 1,677,263 vehicle-miles traveled per day (≈612 million per year).

That is more highway travel volume than 81% of counties in Tennessee.

Higher highway truck share than 72% of counties in Tennessee

The concentration of trucks on highways (19.4%) is 24% higher than the state average for similar road classifications. Highways here lean toward freight, so highway access is a real asset for logistics operators.

By truck concentration, highways here outrank 72% of counties in Tennessee. Greene's highway truck count is higher than 64% of counties in Tennessee, at roughly 1,908 trucks per day.

non-highway traffic icon

Non-highway Traffic in Greene County, Tennessee

Trafficvehicles per day2,495
Trucks6.1%
Average travel time31.9 min
Congestion ratio8.2%
Drivers’ average age50.3 yrs
Drivers’ average income$57,924

At 27% of vehicle-miles, local roads carry a smaller share of the traffic in Greene County, Tennessee than highways. The average non-highway road carries 2,495 vehicles per day.

Spread over 328 miles and 3,659 segments, 69% of the road network, local roads carry a lighter load per mile: 621,572 vehicle-miles traveled per day (≈227 million per year). The truck share on non-highway roads is 6.1%.

Older drivers than 87% of counties in Tennessee

Compared to highways, non-highway routes see 69% fewer trucks by share.

Non-highway congestion (8.2%) runs 47% lower than the state average, pointing to smoother local traffic flow.

61% of counties in Tennessee see higher average driver income among trip origins than Greene. The driver population here skews older than 87% of counties in Tennessee.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

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

Greene County vs. Tennessee Traffic Comparison

The average daily traffic per road sets Greene County apart: 47% below the Tennessee average. Its truck share, by contrast, is 39% above.

MetricGreene CountyTennessee averageDifference
Traffic3,8307,251-47.2%
Truck % (Total Traffic)15.8%11.3%+39.4%
Truck % (Highway)19.4%15.6%+24.4%
Avg. Travel Time33.1 min32.1 min+3.1%

How Greene County compares

Greene County moves more traffic than any nearby county

Set against the average of the 4 areas nearest to it, Greene County moves 2.1 times the total daily travel; it has the fourth busiest roads of the five. It is bigger rather than busier: the extra travel comes from carrying more road, not from heavier roads.

Greene 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
Greene County3,83015.8%2,298,83533.1 min10.8%
Hawkins County, Tennessee3,8718.0%889,95730.1 min10.3%
Cocke County, Tennessee5,78517.2%1,268,33136.3 min13.7%
Hamblen County, Tennessee7,61213.0%1,754,90437.1 min18.0%
Unicoi County, Tennessee3,27211.7%486,43433.0 min9.3%
Tennessee average7,25111.3%N/A32.1 min16.1%

Greene County ranked within Tennessee

Average driver age places Greene County #13 of 95 in Tennessee - the top quarter of the state.

Greene County ranked among 95 county-level areas in Tennessee (1 = highest); measures without data in every county rank a smaller field, down to 86.
MeasureGreene CountyTennessee rank
Traffic volume (AADT)3,830#50 of 95
Highway vehicle-miles per day1,677,263#17 of 86
Truck share on highways19.4%#25 of 86
Highway trucks per day1,908#32 of 86
Average travel time33.1 min#38 of 95
Average driver income$58,154#58 of 95
Average driver age50.6 yrs#13 of 95

Busiest roads in Greene County, Tennessee

On their busiest stretches, the three busiest roads in Greene County carry 21,874 vehicles a day on average, 5.7 times the typical road in the county (3,830).

I 81 leads with 31,046 vehicles a day, 8,058 of them trucks (25.9%). That is 54% more than the next road, Andrew Johnson Highway (20,104). It also carries the most trucks.

I 81 carries longer journeys than most roads here, with a median trip of 59.9 minutes against 33.1 county-wide.

Trucks make up 25.9% of traffic on I 81, against 15.8% across all roads in the county.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 81Motorway · 31,046vehicles8,058trucks · 25.9%
Road class
Motorway
Congestion ratio
32.7%
Median trip time
59.9 min
Drivers’ median age
50.6 yrs
Drivers’ average income
$61,528

Travel on I 81's busiest stretch runs 33% over free-flow time, against 11% across the county, so expect slower peak hours.

2Andrew Johnson HighwayTrunk road · 20,104vehicles2,140trucks · 10.7%
Road class
Trunk road
Congestion ratio
24.1%
Median trip time
36.8 min
Drivers’ median age
50.9 yrs
Drivers’ average income
$55,273

Andrew Johnson Highway carries 5.2 times the county average on its busiest stretch, where the median trip lasts 36.8 minutes.

3US 321Trunk road · 14,473vehicles1,301trucks · 9.0%
Road class
Trunk road
Congestion ratio
18.5%
Median trip time
29.5 min
Drivers’ median age
51.0 yrs
Drivers’ average income
$56,146

US 321 carries 3.8 times the county average at its busiest, 1,301 of them trucks (9.0%, below the county-wide 15.8%).

4Summer StreetTrunk road · 12,854vehicles932trucks · 7.2%
Road class
Trunk road
Congestion ratio
15.8%
Median trip time
33.7 min
Drivers’ median age
50.8 yrs
Drivers’ average income
$55,627

Summer Street carries 3.4 times the county average on its busiest stretch, where the median trip lasts 33.7 minutes.

5Tusculum BoulevardPrimary road · 12,431vehicles692trucks · 5.6%
Road class
Primary road
Congestion ratio
27.3%
Median trip time
31.6 min
Drivers’ median age
50.7 yrs
Drivers’ average income
$60,265

Tusculum Boulevard is one of the more congested roads here: trips take 27% longer than at free-flow speed, against 11% county-wide.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 81Motorway · #1 by traffic31,046vehicles8,058trucks · 25.9%
2Andrew Johnson HighwayTrunk road · #2 by traffic20,104vehicles2,140trucks · 10.7%
3US 321Trunk road · #3 by traffic14,473vehicles1,301trucks · 9.0%
4Summer StreetTrunk road · #4 by traffic12,854vehicles932trucks · 7.2%
5Tusculum BoulevardPrimary road · #5 by traffic12,431vehicles692trucks · 5.6%
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

GreeneDepartment 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 Greene County

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

Need segment-level traffic data?

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