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Traffic heat map of Tolland County, Connecticut: 445 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 84 and US 6

Tolland County, Connecticut Traffic Counts

How busy are the roads of Tolland County, Connecticut? We measure 445 road miles, divided into 11,798 segments, with multi-sourced, cross-verified mobile and sensor data. Its highways carry the highest truck share of any county in Connecticut, 17.0%. The breakdown below covers volume, trucks, congestion and driver profiles for retailers, logistics planners and engineers.
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 Tolland County, Connecticut

Traffic

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

vehicles per day5,378
Trucks

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

10.8%
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.

14.1%
Drivers’ average age

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

44.4 yrs
Drivers’ average income

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

$114,192

The average monitored road in Tolland County, Connecticut carries 5,378 vehicles per day. Across its 445 miles of monitored roads, that adds up to 3,071,321 vehicle-miles traveled per day (≈1.1 billion per year). Trucks are 10.8% of traffic, more than the 8.4% across Connecticut.

Quieter roads than 71% of counties in Connecticut

Tolland sees 21% lower average daily traffic volume than the state average (5,378 vehicles per day against 6,794), suggesting less demand on each road - a factor worth weighing in site selection and logistics planning. Across the whole network, that travel is about 4.9% of Connecticut's statewide total. 71% of counties in Connecticut see more traffic than Tolland's 5,378 vehicles per day.

At 32.5 minutes, the average travel time matches the state level closely. Its average travel time of 32.5 minutes is longer than 57% of counties in Connecticut.

At 18% lower than the state level, the 14.1% congestion ratio signals smoother traffic flow - relevant for traffic control and delivery planning.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Tolland County, Connecticut

Trafficvehicles per day13,514
Trucks17.0%
Average travel time47.2 min
Congestion ratio27.8%
Drivers’ average age44.4 yrs
Drivers’ average income$112,538

Travel in Tolland County, Connecticut splits roughly evenly, with about half of it (48% of vehicle-miles) on highways. The average highway carries 13,514 vehicles per day, 182% more than the average non-highway road in the same area, which carries 4,796 vehicles per day.

Highways make up 19% of the monitored road miles (83 miles, 788 segments), so they carry more than their share: 1,469,728 vehicle-miles traveled per day (≈536 million per year).

The highest highway truck share of any county in Connecticut

The concentration of trucks on highways (17.0%) is 44% higher than the state average for similar road classifications. Highways here lean toward freight, so highway access is a real asset for logistics operators.

At 17.0%, Tolland's highway truck concentration is the highest in Connecticut. Tolland's highway truck count is higher than 71% of counties in Connecticut, at roughly 2,297 trucks per day.

non-highway traffic icon

Non-highway Traffic in Tolland County, Connecticut

Trafficvehicles per day4,796
Trucks5.2%
Average travel time31.4 min
Congestion ratio13.1%
Drivers’ average age44.4 yrs
Drivers’ average income$114,877

Travel in Tolland County, Connecticut splits roughly evenly, with about half of it (52% of vehicle-miles) on local roads. The average non-highway road carries 4,796 vehicles per day.

Spread over 362 miles and 11,010 segments, 81% of the road network, local roads carry a lighter load per mile: 1,601,593 vehicle-miles traveled per day (≈585 million per year). Trucks make up 5.2% of non-highway traffic, about 1 in 19 vehicles.

The youngest drivers of any county in Connecticut

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

At 17% lower than the state level, the non-highway congestion ratio of 13.1% signals easier movement on local roads.

86% of counties in Connecticut see lower average driver income among trip origins than Tolland. Tolland has the lowest median driver age in Connecticut - 44 years.

Time-of-Day & Seasonal Patterns

Data Finding: Hourly & Seasonal Patterns

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

Tolland County vs. Connecticut Traffic Comparison

The highway truck share sets Tolland County apart: 44% above the Connecticut average. Its truck share is also 29% above.

MetricTolland CountyConnecticut averageDifference
Traffic5,3786,794-20.8%
Truck % (Total Traffic)10.8%8.4%+29.4%
Truck % (Highway)17.0%11.8%+44.1%
Avg. Travel Time32.5 min33.2 min-2.1%

How Tolland County compares

Tolland County has a higher truck share than any nearby county

Against the 4 nearest areas, Tolland County moves 42.8% of the total daily travel; it has the fourth busiest roads of the five. The same kind of road, just less of it: traffic per road matches the areas around it while the network itself is smaller.

Tolland County and the 4 nearest county-level areas by centroid distance, with the Connecticut average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Tolland County5,37810.8%3,071,32132.5 min14.1%
Windham County, Connecticut3,9078.6%2,111,30332.4 min11.4%
Hartford County, Connecticut7,7117.8%16,835,82934.0 min18.8%
Middlesex County, Connecticut5,5429.1%3,838,69230.5 min14.9%
New London County, Connecticut5,7829.8%5,951,51832.6 min14.5%
Connecticut average6,7948.4%N/A33.2 min17.2%

Tolland County ranked within Connecticut

Tolland County posts the highest truck share on highways of any county-level area in Connecticut.

Tolland County ranked among 8 county-level areas in Connecticut (1 = highest).
MeasureTolland CountyConnecticut rank
Traffic volume (AADT)5,378#6 of 8
Highway vehicle-miles per day1,469,728#6 of 8
Truck share on highways17.0%#1 of 8
Highway trucks per day2,297#3 of 8
Average travel time32.5 min#4 of 8
Average driver income$114,192#2 of 8
Average driver age44.4 yrs#8 of 8

The two ends of this table sit far apart: #1 of 8 on truck share on highways, against #8 of 8 on average driver age.

Busiest roads in Tolland County, Connecticut

Traffic concentrates on a few corridors: the three busiest roads average 28,319 vehicles a day, against 5,378 on the average road in Tolland County.

I 84 is the busiest road, at 44,079 vehicles a day, 8,910 of them trucks (20.2%). That is 2.1 times the next road, US 6 (20,742). It also carries the most trucks.

I 84 carries longer journeys than most roads here, with a median trip of 59.5 minutes against 32.5 county-wide.

Trucks make up 20.2% of traffic on I 84, against 10.8% across all roads in the county.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 84Motorway · 44,079vehicles8,910trucks · 20.2%
Road class
Motorway
Congestion ratio
31.4%
Median trip time
59.5 min
Drivers’ median age
44.9 yrs
Drivers’ average income
$120,020

I 84 carries 8.2 times the county average at its busiest, 8,910 of them trucks (20.2%, above the county-wide 10.8%).

2US 6Motorway · 20,742vehicles1,302trucks · 6.3%
Road class
Motorway
Congestion ratio
36.7%
Median trip time
39.4 min
Drivers’ median age
41.6 yrs
Drivers’ average income
$107,745

US 6 carries 3.9 times the county average on its busiest stretch, where the median trip lasts 39.4 minutes.

3Willimantic TurnpikeTrunk road · 20,134vehicles1,441trucks · 7.2%
Road class
Trunk road
Congestion ratio
47.7%
Median trip time
35.1 min
Drivers’ median age
45.5 yrs
Drivers’ average income
$101,079

Travel on Willimantic Turnpike's busiest stretch runs 48% over free-flow time, against 14% across the county, so expect slower peak hours.

4Jonathan Trumbull HighwayTrunk road · 19,749vehicles1,538trucks · 7.8%
Road class
Trunk road
Congestion ratio
52.4%
Median trip time
35.1 min
Drivers’ median age
45.1 yrs
Drivers’ average income
$100,825

Jonathan Trumbull Highway is one of the more congested roads here: trips take 52% longer than at free-flow speed, against 14% county-wide.

5I 384Motorway · 19,749vehicles1,722trucks · 8.7%
Road class
Motorway
Congestion ratio
18.7%
Median trip time
40.3 min
Drivers’ median age
40.5 yrs
Drivers’ average income
$105,269

At 3.7 times the county average, I 384 draws drivers from neighborhoods averaging $105,269 in household income.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 84Motorway · #1 by traffic44,079vehicles8,910trucks · 20.2%
2I 384Motorway · #5 by traffic19,749vehicles1,722trucks · 8.7%
3Jonathan Trumbull HighwayTrunk road · #4 by traffic19,749vehicles1,538trucks · 7.8%
4Willimantic TurnpikeTrunk road · #3 by traffic20,134vehicles1,441trucks · 7.2%
5US 6Motorway · #2 by traffic20,742vehicles1,302trucks · 6.3%
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

TollandDepartment 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 Tolland County

The same traffic breakdown for the areas closest to Tolland County, Connecticut.

Need segment-level traffic data?

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