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Traffic heat map of Franklin County, Massachusetts: 408 miles of roads shaded from blue (light) to red (heavy traffic), busiest on I 91 and Bridge Street

Franklin County, Massachusetts Traffic Counts

Its roads are the quietest of any county in Massachusetts, at 3,676 vehicles a day on average. This page breaks down traffic in Franklin County, Massachusetts across 408 miles of monitored roads split into 9,576 segments, using multi-sourced mobile and sensor data. It goes beyond raw counts to truck flow, congestion and who is driving, so site selection and route planning rest on evidence.
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 Franklin County, Massachusetts

Traffic

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

vehicles per day3,676
Trucks

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

8.4%
Average travel time

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

37.6 min
Congestion ratio

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

13.8%
Drivers’ average age

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

49.4 yrs
Drivers’ average income

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

$75,941

Our data shows 3,676 vehicles per day on the average road in Franklin County, Massachusetts, and 1,777,813 vehicle-miles traveled per day (≈649 million per year) across its 408 miles of monitored roads. Trucks are 8.4% of traffic, more than the 6.9% across Massachusetts.

The quietest roads of any county in Massachusetts

Franklin sees 55% lower average daily traffic volume than the state average (3,676 vehicles per day against 8,166), suggesting less demand on each road - quiet roads that suit freight movement more than drive-by retail. Network-wide, Franklin accounts for about 1.3% of Massachusetts's statewide total of vehicle-miles. In fact, Franklin has the lowest average traffic volume of any county in Massachusetts, at 3,676 vehicles per day.

At 37.6 minutes, the average travel time is 10% higher than the state level. Its average travel time of 37.6 minutes is longer than 85% of counties in Massachusetts.

Congestion runs 42% lower than the state level, at a ratio of 13.8%, which means smoother traffic flow - fewer delays make delivery windows more reliable.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Franklin County, Massachusetts

Trafficvehicles per day9,186
Trucks10.9%
Average travel time50.4 min
Congestion ratio24.3%
Drivers’ average age51.2 yrs
Drivers’ average income$76,859

A significant share of driving in Franklin County, Massachusetts, 43% of vehicle-miles, happens on highways. The average highway carries 9,186 vehicles per day, 169% more than the average non-highway road in the same area, which carries 3,416 vehicles per day.

With 17% of the road miles (71 miles in 432 segments), highways punch above their length, carrying 756,731 vehicle-miles traveled per day (≈276 million per year).

Fewer highway trucks than 91% of counties in Massachusetts

At 10.9%, highway truck share is 30% higher than the state average. Highways here lean toward freight, so highway access is a real asset for logistics operators.

By truck concentration, highways here outrank 64% of counties in Massachusetts. Franklin's highway truck count is lower than 91% of counties in Massachusetts, at roughly 1,003 trucks per day.

non-highway traffic icon

Non-highway Traffic in Franklin County, Massachusetts

Trafficvehicles per day3,416
Trucks6.5%
Average travel time37.0 min
Congestion ratio13.4%
Drivers’ average age48.9 yrs
Drivers’ average income$75,655

A little more than half of the driving in Franklin County, Massachusetts happens on local roads: 57% of all vehicle-miles. A typical local road sees 3,416 vehicles per day.

Spread over 337 miles and 9,144 segments, 83% of the road network, local roads carry a lighter load per mile: 1,021,082 vehicle-miles traveled per day (≈373 million per year). The truck share on non-highway roads is 6.5%.

The lowest driver income of any county in Massachusetts

Compared to highways, non-highway routes see 41% fewer trucks by share.

At 42% lower than the state level, the non-highway congestion ratio of 13.4% signals easier movement on local roads.

Trips here originate from the lowest average driver income in Massachusetts, at $75,941. 69% of counties in Massachusetts have a younger driver population than Franklin.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 10:00 AM–12:00 PM and a long afternoon plateau from 12:00 PM to 6:00 PM, with volumes reaching approximately 76% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 10% below weekday levels, the usual weekend dip.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
August–October is the high season, with volumes +8% versus the annual average.
Lowest month:
January is the quietest month, with volumes -15% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Franklin County, Massachusetts, the peak hour concentrates about 7% of the day's traffic, and there is a noticeable seasonal swing of +8% in high season.

Franklin County vs. Massachusetts Traffic Comparison

Franklin County's biggest difference from the Massachusetts average is its average daily traffic per road, 55% below it. Its highway truck share, by contrast, is 30% above.

MetricFranklin CountyMassachusetts averageDifference
Traffic3,6768,166-55.0%
Truck % (Total Traffic)8.4%6.9%+20.8%
Truck % (Highway)10.9%8.4%+30.2%
Avg. Travel Time37.6 min34.4 min+9.6%

How Franklin County compares

Franklin County against nearby counties

Franklin County tracks the 4 areas around it closely - no measure in this table sets it far apart from the areas immediately next to it, though it has the fourth busiest roads of the five. Smaller and quieter on both counts: a shorter network than the areas around it, carrying lighter traffic across it.

Franklin County and the 4 nearest county-level areas by centroid distance, with the Massachusetts average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Franklin County3,6768.4%1,777,81337.6 min13.8%
Hampshire County, Massachusetts4,9587.1%2,624,85334.2 min16.3%
Hampden County, Massachusetts6,8428.8%8,568,96136.2 min19.6%
Cheshire County, New Hampshire4,9237.6%1,771,14334.9 min15.7%
Windham County, Vermont3,32510.8%1,253,46934.8 min12.2%
Massachusetts average8,1666.9%N/A34.4 min24.0%

Franklin County ranked within Massachusetts

Franklin County sits in Massachusetts's top three on average travel time.

Franklin County ranked among 14 county-level areas in Massachusetts (1 = highest); measures without data in every county rank a smaller field, down to 12.
MeasureFranklin CountyMassachusetts rank
Traffic volume (AADT)3,676#14 of 14
Highway vehicle-miles per day756,731#11 of 12
Truck share on highways10.9%#5 of 12
Highway trucks per day1,003#11 of 12
Average travel time37.6 min#3 of 14
Average driver income$75,941#14 of 14
Average driver age49.4 yrs#5 of 14

The two ends of this table sit far apart: #3 of 14 on average travel time, against #14 of 14 on average daily traffic volume.

Busiest roads in Franklin County, Massachusetts

Traffic concentrates on a few corridors: the three busiest roads average 21,819 vehicles a day, against 3,676 on the average road in Franklin County.

I 91 is the busiest road, at 28,184 vehicles a day, 3,115 of them trucks (11.1%). It also carries the most trucks.

Drivers on Amherst Road are noticeably younger, with a median age of 29.4 against 49.4 across the county.

Trips using I 91 are long: a median of 51.7 minutes against 37.6 county-wide, the mark of a through route.

Traffic and freight follow different roads here: only 2 of the five busiest roads also make the top 5 for trucks.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1I 91Motorway · 28,184vehicles3,115trucks · 11.1%
Road class
Motorway
Congestion ratio
27.7%
Median trip time
51.7 min
Drivers’ median age
52.4 yrs
Drivers’ average income
$79,106

I 91 is a trunk route for the county, carrying 7.7 times the county average on its busiest stretch; trucks are 11.1% of it, above the county-wide 8.4%.

2Bridge StreetPrimary road · 20,101vehicles1,293trucks · 6.4%
Road class
Primary road
Congestion ratio
54.5%
Median trip time
39.6 min
Drivers’ median age
41.4 yrs
Drivers’ average income
$87,293

Delays build on Bridge Street: its congestion ratio of 55% over free-flow time is well above the county's 14%.

3MA 2Primary road · 17,171vehicles716trucks · 4.2%
Road class
Primary road
Congestion ratio
40.6%
Median trip time
41.0 min
Drivers’ median age
52.6 yrs
Drivers’ average income
$71,635

At 4.7 times the county average, MA 2 draws drivers from neighborhoods averaging $71,635 in household income.

4Mohawk TrailPrimary road · 16,704vehicles755trucks · 4.5%
Road class
Primary road
Congestion ratio
49.9%
Median trip time
38.3 min
Drivers’ median age
52.1 yrs
Drivers’ average income
$65,132

Travel on Mohawk Trail's busiest stretch runs 50% over free-flow time, against 14% across the county, so expect slower peak hours.

5Amherst RoadPrimary road · 14,402vehicles780trucks · 5.4%
Road class
Primary road
Congestion ratio
39.4%
Median trip time
39.9 min
Drivers’ median age
29.4 yrs
Drivers’ average income
$87,385

The busiest stretch of Amherst Road carries 3.9 times the county average; trucks are 5.4% of it, below the county-wide 8.4%.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 91Motorway · #1 by traffic28,184vehicles3,115trucks · 11.1%
2Bridge StreetPrimary road · #2 by traffic20,101vehicles1,293trucks · 6.4%
3Sunderland RoadPrimary road · 12,190vehicles1,101trucks · 9.0%
Road class
Primary road
Congestion ratio
34.1%
Median trip time
50.4 min
Drivers’ median age
40.4 yrs
Drivers’ average income
$87,923

Drivers on Sunderland Road are on long journeys, a median 50.4 minutes against 37.6 county-wide: a through route more than a local street.

4Deerfield BypassPrimary road · 14,186vehicles1,033trucks · 7.3%
Road class
Primary road
Congestion ratio
37.5%
Median trip time
36.5 min
Drivers’ median age
52.7 yrs
Drivers’ average income
$96,339

On its busiest stretch, Deerfield Bypass carries 3.9 times the county average; trucks are 7.3% of it, below the county-wide 8.4%.

5Greenfield RoadPrimary road · 13,173vehicles965trucks · 7.3%
Road class
Primary road
Congestion ratio
35.3%
Median trip time
50.9 min
Drivers’ median age
52.6 yrs
Drivers’ average income
$95,681

Greenfield Road carries through traffic: the median trip using it lasts 50.9 minutes, against 37.6 for the county.

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

FranklinDepartment 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 Franklin County

The same traffic breakdown for the areas closest to Franklin County, Massachusetts.

Need segment-level traffic data?

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