This page delivers traffic analytics for Polk County, Tennessee. Our metrics are calculated with multi-sourced, cross-verified data from real-world mobile and sensor networks, and averaged for Polk County, Tennessee among 156 road miles divided in 1,529 segments. Our metrics go beyond simple volume counts to provide actionable insights on traffic intensity, congestion, commercial vehicle flow, and network performance with highest possible granularity (average segment length is 539 ft). Whether you are evaluating a new retail location, planning logistics routes, or assessing infrastructure needs, this data helps you move from assumptions to certainty.
Data sourced from TrafficZoom's proprietary analytics platform.
The average number of vehicles that travel each day over any road in the road network.
2,652
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
9.4%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
33.3 min
Congestion ratio
Congestion ratio
The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network.
6.4%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
49.1 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$65,039
Our data indicates an estimated average traffic volume of 2,652 vehicles per day in Polk County, Tennessee that results in 468,953 vehicle-miles traveled per day (≈171 million per year). The traffic stream is comprised of an average of 1 truck for every 11 vehicles. Typical time spent behind the wheel per trip is 33.3 minutes, which already accounts for delays at signals, intersections, and congestion.
Analytical insight
When compared to the Tennessee state averages: Polk's average daily traffic volume is 63% lower than the state average - 2,652 vehicles per day against 7,251 - suggesting less traffic load per road, a critical factor for logistics and site planning. In total volume terms, its road network carries 468,953 vehicle-miles traveled per day (≈171 million per year), about 0.3% of Tennessee's statewide total. At 33.3 minutes, the average travel time is 4% higher than the state level. Congestion runs 60% lower than the state level, at a ratio of 6.4% - smoother traffic flow - crucial for traffic control improvement and logistics planning. By volume, Polk's 2,652 vehicles per day outpaces 17% of counties in Tennessee. 64% of counties in Tennessee have a shorter average travel time than Polk's 33.3 minutes.
Highway vs. Non-Highway Traffic Analysis
Highway Traffic
Traffic
Traffic
The average number of vehicles that travel each day over any road in the road network.
4,890
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
9.6%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
38.7 min
Congestion ratio
Congestion ratio
The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network.
10.5%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
48.8 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$65,414
A significant volume of traffic in Polk County, Tennessee utilizes the highway network. The average highway carries 4,890 vehicles per day, 316% more than the average non-highway road in the same area, which carries 1,175 vehicles per day. That average covers 85 highway road miles divided in 608 segments (average segment length 742 ft), together carrying 384,045 vehicle-miles traveled per day (≈140 million per year). Trucks constitute 9.6% of highway traffic.
Analytical insight
At 9.6%, highway truck share is 39% lower than the state average, marking Polk as a primarily local traffic hub - underscoring the importance of local access for logistics operators. Polk's highway truck share (9.6%) is higher than 12% of counties in Tennessee. Polk's highway truck count is higher than 14% of counties in Tennessee, at roughly 469 trucks per day.
Non-highway traffic
Traffic
Traffic
The average number of vehicles that travel each day over any road in the road network.
1,175
Trucks
Trucks
The percentage of the total traffic volume composed of heavy vehicles.
8.7%
Average travel time
Average travel time
The average time of travel averaged among all vehicles traveling on the road network.
29.7 min
Congestion ratio
Congestion ratio
The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network.
3.7%
Drivers’ average age
Drivers’ average age
Average age of residents in the geographic areas where the vehicle trips originated.
52.2 yrs
Drivers’ average income
Drivers’ average income
Average income of residents in the geographic areas where the vehicle trips originated.
$63,604
The non-highway road network in Polk County, Tennessee supports a substantial volume of traffic. The average non-highway road carries 1,175 vehicles per day, 76% less than the average highway in the same area, which carries 4,890 vehicles per day. That average covers 71 non-highway road miles divided in 921 segments (average segment length 405 ft), together carrying 84,908 vehicle-miles traveled per day (≈31.0 million per year). Trucks constitute 8.7% of non-highway traffic.
Analytical insight
Compared to highways, non-highway routes see 9% fewer trucks by share. At 76% lower than the state level, the non-highway congestion ratio of 3.7% signals easier movement on local roads. 64% of counties in Tennessee see shorter overall travel times than Polk. 68% of counties in Tennessee see lower average driver income among trip origins than Polk. 62% of counties in Tennessee have a younger driver population than Polk.
Time-of-Day & Seasonal Patterns
Analytical insight
In Polk County, Tennessee, the peak hour concentrates about 7% of the day's traffic.
Traffic Flow Profile Comparison
Metric
Polk
Tennessee
Average
Difference
Traffic
2,652
7,251
-63.4%
Truck % (Total Traffic)
9.4%
11.3%
-16.8%
Truck % (Highway)
9.6%
15.6%
-38.6%
Avg. Travel Time
33.3 min
32.1 min
+3.8%
Frequently Asked Questions
The average daily traffic volume is calculated at 2,652 vehicles per day, providing a baseline for daily operations and site assessment.
Polk's highway truck share of 9.6% is higher than 12% of counties in Tennessee.
Approximately 35% of highway traffic and 20% of non-highway traffic consists of vehicles whose trip originates outside Polk County, Tennessee. This indicates that a portion of highway traffic is regional pass-through, while local roads are more representative of resident and commuter activity.
The average travel time for drivers is 33.3 minutes, offering a standard metric for commute and delivery route planning.
Drivers on Polk roads have a median age of 49 years, and the median household income of the neighborhoods trips originate from averages $65,039 - useful context for retail siting and customer profiling.
Weekday peaks occur between 10:00 AM and 12:00 PM in the morning and between 12:00 PM and 6:00 PM in the evening - about 74% above the daily average.
Trucks account for approximately 9.4% of the total traffic mix across all road types, with a significantly higher concentration of 9.6% on highways.
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)
