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Traffic heat map of Davidson County, Tennessee: 1,116 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 24 and I 65

Davidson County, Tennessee Traffic Counts

Our Davidson County, Tennessee traffic data covers 39,151 road segments over 1,116 road miles, with an average segment of just 150 ft. It moves more highway traffic than any other county in Tennessee. Whether you are evaluating a new retail location, planning routes or assessing infrastructure, these numbers replace guesswork.
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 Davidson County, Tennessee

Traffic

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

vehicles per day10,990
Trucks

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

9.8%
Average travel time

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

32.5 min
Congestion ratio

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

20.4%
Drivers’ average age

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

42.3 yrs
Drivers’ average income

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

$91,814

The average monitored road in Davidson County, Tennessee carries 10,990 vehicles per day. Across its 1,116 miles of monitored roads, that adds up to 19,206,778 vehicle-miles traveled per day (≈7.0 billion per year). About 1 in 10 vehicles is a truck, in line with Tennessee (11.3%).

Busier roads than 99% of counties in Tennessee

Davidson sees 52% higher average daily traffic volume than the state average (10,990 vehicles per day against 7,251), suggesting more demand on each road - prime passing trade for storefronts, with more competition for road space. Across the whole network, that travel is about 11% of Tennessee's statewide total. By volume, Davidson's 10,990 vehicles per day outpaces 99% of counties in Tennessee.

Journey times here (32.5 minutes on average) closely track the state level. 51% of counties in Tennessee have a longer average travel time than Davidson's 32.5 minutes.

At 27% higher than the state level, the 20.4% congestion ratio signals more pronounced congestion - a factor for delivery windows and signal timing.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Davidson County, Tennessee

Trafficvehicles per day42,016
Trucks12.7%
Average travel time38.9 min
Congestion ratio57.9%
Drivers’ average age42.7 yrs
Drivers’ average income$89,305

Highways carry more than half of all travel in Davidson County, Tennessee (60% of vehicle-miles). The average highway carries 42,016 vehicles per day, 315% more than the average non-highway road in the same area, which carries 10,114 vehicles per day.

Highways make up 23% of the monitored road miles (255 miles, 1,075 segments), so they carry more than their share: 11,462,118 vehicle-miles traveled per day (≈4.2 billion per year).

No county in Tennessee moves more traffic on its highways.

The most highway trucks of any county in Tennessee

The concentration of trucks on highways (12.7%) is 19% lower than the state average for similar road classifications. Trucks are a small share of a very large highway flow, so Davidson still moves heavy freight volumes alongside its passenger traffic.

54% of counties in Tennessee see a higher highway truck share than Davidson's 12.7%. By raw volume, Davidson carries the highest number of highway trucks in Tennessee - roughly 5,714 trucks per day.

non-highway traffic icon

Non-highway Traffic in Davidson County, Tennessee

Trafficvehicles per day10,114
Trucks5.4%
Average travel time32.3 min
Congestion ratio19.4%
Drivers’ average age41.8 yrs
Drivers’ average income$94,917

A significant share of driving in Davidson County, Tennessee, 40% of vehicle-miles, happens on local roads. On the average non-highway road, that comes to 10,114 vehicles per day.

Spread over 861 miles and 38,076 segments, 77% of the road network, local roads carry a lighter load per mile: 7,744,660 vehicle-miles traveled per day (≈2.8 billion per year). The truck share on non-highway roads is 5.4%.

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

Non-highway roads carry a truck concentration that's 57% lower than the highway network.

The non-highway congestion ratio of 19.4% is 26% higher than the state level, suggesting slower local mobility than the state average.

Davidson's average driver income is higher than 98% of counties in Tennessee. 98% of counties in Tennessee have an older driver population than Davidson.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–8:00 AM and a long afternoon plateau from 3:00 PM to 7:00 PM, with volumes reaching approximately 62% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 19% below weekday levels, the usual weekend dip.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
March–May is the high season, with volumes +4% versus the annual average.
Lowest month:
December is the quietest month, with volumes -5% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Davidson County, Tennessee, the peak hour concentrates about 7% of the day's traffic, and there is a noticeable seasonal swing of +4% in high season.

Davidson County vs. Tennessee Traffic Comparison

The average daily traffic per road sets Davidson County apart: 52% above the Tennessee average. Its highway truck share, by contrast, is 19% below.

MetricDavidson CountyTennessee averageDifference
Traffic10,9907,251+51.6%
Truck % (Total Traffic)9.8%11.3%-13.8%
Truck % (Highway)12.7%15.6%-18.6%
Avg. Travel Time32.5 min32.1 min+1.2%

How Davidson County compares

Davidson County moves more traffic than any nearby county

Compared with its 4 closest neighbours, Davidson County moves 5.2 times the total daily travel and carries 60.2% more traffic on a typical road; it has the 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.

Davidson 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
Davidson County10,9909.8%19,206,77832.5 min20.4%
Cheatham County, Tennessee4,47913.2%1,431,16329.5 min13.7%
Williamson County, Tennessee7,9838.9%6,972,48529.7 min20.9%
Robertson County, Tennessee5,48815.5%2,873,34631.9 min13.8%
Sumner County, Tennessee9,4937.7%3,544,57530.2 min20.9%
Tennessee average7,25111.3%N/A32.1 min16.1%

Davidson County ranked within Tennessee

Highway travel volume and highway truck volume: on all 2, Davidson County sits first in Tennessee.

Davidson County ranked among 95 county-level areas in Tennessee (1 = highest); measures without data in every county rank a smaller field, down to 86.
MeasureDavidson CountyTennessee rank
Traffic volume (AADT)10,990#2 of 95
Highway vehicle-miles per day11,462,118#1 of 86
Truck share on highways12.7%#47 of 86
Highway trucks per day5,336#1 of 86
Average travel time32.5 min#49 of 95
Average driver income$91,814#3 of 95
Average driver age42.3 yrs#93 of 95

The two ends of this table sit far apart: #1 of 86 on highway travel volume, against #93 of 95 on average driver age.

Busiest roads in Davidson County, Tennessee

Traffic concentrates on a few corridors: the three busiest roads average 154,048 vehicles a day, against 10,990 on the average road in Davidson County.

I 24 leads with 211,830 vehicles a day, 24,082 of them trucks (11.4%). That is 55% more than the next road, I 65 (136,517). It also carries the most trucks.

I 65 draws drivers from wealthier areas: their neighborhoods average $115,384 in household income, 26% above the county's $91,814.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 24Motorway · 211,830vehicles24,082trucks · 11.4%
Road class
Motorway
Congestion ratio
114.4%
Median trip time
41.1 min
Drivers’ median age
42.8 yrs
Drivers’ average income
$85,457

Delays build on I 24: its congestion ratio of 114% over free-flow time is well above the county's 20%.

2I 65Motorway · 136,517vehicles13,966trucks · 10.2%
Road class
Motorway
Congestion ratio
70.0%
Median trip time
38.8 min
Drivers’ median age
43.6 yrs
Drivers’ average income
$115,384

Travel on I 65's busiest stretch runs 70% over free-flow time, against 20% across the county, so expect slower peak hours.

3I 40Motorway · 113,797vehicles14,329trucks · 12.6%
Road class
Motorway
Congestion ratio
68.3%
Median trip time
37.0 min
Drivers’ median age
43.0 yrs
Drivers’ average income
$89,738

A main artery: I 40's busiest stretch carries 10.4 times the county average; trucks are 12.6% of it, above the county-wide 9.8%.

4Four-Forty ParkwayMotorway · 91,808vehicles10,182trucks · 11.1%
Road class
Motorway
Congestion ratio
59.7%
Median trip time
36.9 min
Drivers’ median age
42.5 yrs
Drivers’ average income
$99,776

Four-Forty Parkway is a trunk route for the county, carrying 8.4 times the county average on its busiest stretch; trucks are 11.1% of it, above the county-wide 9.8%.

5Vietnam Veterans BoulevardMotorway · 58,716vehicles5,973trucks · 10.2%
Road class
Motorway
Congestion ratio
59.3%
Median trip time
34.1 min
Drivers’ median age
44.3 yrs
Drivers’ average income
$91,992

Vietnam Veterans Boulevard carries 5.3 times the county average at its busiest, 5,973 of them trucks (10.2%, in line with the county-wide 9.8%).

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 24Motorway · #1 by traffic211,830vehicles24,082trucks · 11.4%
2I 40Motorway · #3 by traffic113,797vehicles14,329trucks · 12.6%
3I 65Motorway · #2 by traffic136,517vehicles13,966trucks · 10.2%
4Four-Forty ParkwayMotorway · #4 by traffic91,808vehicles10,182trucks · 11.1%
5Vietnam Veterans BoulevardMotorway · #5 by traffic58,716vehicles5,973trucks · 10.2%
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

DavidsonDepartment 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 Davidson County

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

Need segment-level traffic data?

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