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Traffic heat map of Massachusetts: roads over 1,000 vehicles a day shaded from blue (light) to red (heavy traffic), busiest on Southeast Expressway

Massachusetts Traffic Counts

How busy are the roads of Massachusetts? We measure 13,355 road miles, divided into 443,345 segments, with multi-sourced, cross-verified mobile and sensor data. Its drivers come from neighborhoods among the top 5 states nationwide for household income. 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 icon

Total Traffic Volume & Performance in Massachusetts

Traffic

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

vehicles per day8,166
Trucks

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

6.9%
Average travel time

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

34.4 min
Congestion ratio

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

24.0%
Drivers’ average age

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

47.2 yrs
Drivers’ average income

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

$116,940

A typical monitored road in Massachusetts sees 8,166 vehicles per day, while its 13,355 miles of monitored roads together handle 136,116,242 vehicle-miles traveled per day (≈49.7 billion per year). About 1 in 14 vehicles is a truck, fewer than the 1 in 11 across the US.

Busier roads than 84% of states nationwide

At 8,166 vehicles per day, the average monitored road in Massachusetts carries 17% more traffic than the national average of 6,986, suggesting more demand on each road - a critical factor for logistics and site planning. Across the whole network, that travel is about 1.8% of the national total. Massachusetts carries more traffic than 84% of states nationwide.

The average trip takes 34.4 minutes, on par with the national level. On travel time, Massachusetts runs longer than 80% of states nationwide.

At 27% higher than the national level, the 24.0% 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 Massachusetts

Trafficvehicles per day23,969
Trucks8.4%
Average travel time41.0 min
Congestion ratio50.5%
Drivers’ average age48.0 yrs
Drivers’ average income$119,646

Travel in Massachusetts splits roughly evenly, with about half of it (49% of vehicle-miles) on highways. The average highway carries 23,969 vehicles per day, 217% more than the average non-highway road in the same area, which carries 7,572 vehicles per day.

With 17% of the road miles (2,266 miles in 16,061 segments), highways punch above their length, carrying 66,320,020 vehicle-miles traveled per day (≈24.2 billion per year).

56% of states nationwide move less traffic on their highways.

Lower highway truck share than 94% of states nationwide

The concentration of trucks on highways (8.4%) is 36% lower than the national average for similar road classifications. Trucks are a small share of a very large highway flow, so Massachusetts still moves heavy freight volumes alongside its passenger traffic.

Massachusetts's highway truck share (8.4%) is lower than 94% of states nationwide. By raw truck volume, Massachusetts carries more highway trucks than 90% of states nationwide.

non-highway traffic icon

Non-highway Traffic in Massachusetts

Trafficvehicles per day7,572
Trucks5.5%
Average travel time34.1 min
Congestion ratio23.1%
Drivers’ average age46.8 yrs
Drivers’ average income$115,297

Travel in Massachusetts splits roughly evenly, with about half of it (51% of vehicle-miles) on local roads. A typical local road sees 7,572 vehicles per day.

Local roads make up 83% of the monitored road miles (11,088 miles in 427,284 segments) but carry less than their share of travel: 69,796,219 vehicle-miles traveled per day (≈25.5 billion per year). About 1 in 18 vehicles on non-highway roads is a truck (5.5%).

Drivers from higher-income areas than 94% of states nationwide

Non-highway roads carry a truck concentration that's 34% lower than the highway network.

Non-highway congestion (23.1%) runs 26% higher than the national average, pointing to slower local traffic flow.

Massachusetts's average driver income is higher than 94% of states nationwide. 72% of states nationwide have a younger driver population than Massachusetts.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
AM peak 7:00 AM–9:00 AM and a long afternoon plateau from 12:00 PM to 7:00 PM, with volumes reaching approximately 62% higher than the daily average.
Weekend traffic:
Weekends are somewhat quieter: volumes run about 14% below weekday levels, the usual weekend dip.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +9% versus the annual average.
Lowest month:
January is the quietest month, with volumes -14% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Massachusetts, the peak hour concentrates about 7% of the day's traffic, and there is a noticeable seasonal swing of +9% in high season.

Massachusetts vs. United States Traffic Comparison

Of the four measures, highway truck share differs most: Massachusetts runs 36% below the United States average. Its truck share is also 26% below.

MetricMassachusettsUnited States averageDifference
Traffic8,1666,986+16.9%
Truck % (Total Traffic)6.9%9.3%-25.9%
Truck % (Highway)8.4%13.1%-35.8%
Avg. Travel Time34.4 min33.3 min+3.2%

How Massachusetts compares

Massachusetts moves more traffic than any nearby state

Against the 4 nearest states, Massachusetts moves 4.2 times the total daily travel and is 34.7% more congested; it has the busiest roads of the five. Bigger and busier at once: more road than the states around it and heavier traffic on it, which makes it the centre of gravity for travel in this part of the map.

Massachusetts and the 4 nearest states by centroid distance, with the United States average for scale.
StateAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Massachusetts8,1666.9%136,116,24234.4 min24.0%
Rhode Island7,8707.0%19,159,97535.2 min23.3%
New Hampshire5,6697.0%32,761,09132.7 min17.5%
Connecticut6,7948.4%63,263,07333.2 min17.2%
Vermont4,0278.5%15,079,46132.7 min13.2%
United States average6,9869.3%N/A33.3 min18.9%

Busiest counties in Massachusetts

Together, those three counties carry 49.3% of all the vehicle-miles measured in the state.

Ranked by daily vehicle-miles, across the 14 counties in Massachusetts with a published traffic page. Vehicle-miles is total travel, so this ranks by traffic MOVED rather than by how busy a typical road is.
CountyDaily vehicle-milesAverage daily trafficTruck shareRoad miles
1. Middlesex County31,388,7129,5406.7%2,380
2. Worcester County19,369,6906,8238.7%2,247
3. Norfolk County16,383,68710,6526.3%1,087

Most truck-intensive counties in Massachusetts

Massachusetts's three most truck-intensive counties account for 28.8% of the truck vehicle-miles driven in the state.

Ranked by truck share of all traffic, across the same 14 counties, shown with the traffic volume that share is measured against.
CountyTruck shareTruck share on highwaysAverage daily trafficDaily vehicle-miles
1. Berkshire County9.9%13.5%4,6702,892,891
2. Hampden County8.8%13.4%6,8428,568,961
3. Worcester County8.7%11.3%6,82319,369,690

Asking the same question of truck vehicle-miles gives a different answer - Middlesex County, Worcester County, Norfolk County, Essex County and Bristol County, together 69.2% of all truck travel in Massachusetts.

Busiest roads in Massachusetts

The three busiest roads in Massachusetts average 161,069 vehicles a day, 19.7 times the state average of 8,166 across all its monitored roads.

Southeast Expressway in Suffolk County is the busiest road, at 174,449 vehicles a day, 10,936 of them trucks (6.3%). Wilbur Cross Highway in Worcester County carries the most trucks, 12,752 a day (24.0% of its traffic), although it is not among the 10 busiest roads overall.

Freight stands out on Wilbur Cross Highway in Worcester County and Massachusetts Turnpike in Worcester County: trucks are 24.0% and 16.6% of the traffic there, against 6.9% state-wide.

Trips using Wilbur Cross Highway in Worcester County are long: a median of 70.2 minutes against 34.4 state-wide, the mark of a through route.

Drivers on Yankee Division Highway in Middlesex County come from neighborhoods with an average household income of $147,204, 26% above the state average of $116,940.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1Southeast ExpresswaySuffolk County · Motorway · 174,449vehicles10,936trucks · 6.3%
Road class
Motorway
Congestion ratio
101.9%
Median trip time
41.2 min
Drivers’ median age
44.7 yrs
Drivers’ average income
$125,054

Travel on Southeast Expressway's busiest stretch runs 102% over free-flow time, against 24% across the state, so expect slower peak hours.

2Southeast ExpresswayNorfolk County · Motorway · 157,118vehicles10,204trucks · 6.5%
Road class
Motorway
Congestion ratio
95.3%
Median trip time
40.9 min
Drivers’ median age
45.3 yrs
Drivers’ average income
$127,325

A main artery: Southeast Expressway's busiest stretch carries 19.2 times the state average; trucks are 6.5% of it, below the state-wide 6.9%.

3Yankee Division HighwayNorfolk County · Motorway · 151,640vehicles9,791trucks · 6.5%
Road class
Motorway
Congestion ratio
107.4%
Median trip time
42.2 min
Drivers’ median age
46.8 yrs
Drivers’ average income
$130,539

Yankee Division Highway is one of the more congested roads here: trips take 107% longer than at free-flow speed, against 24% state-wide.

4Yankee Division HighwayMiddlesex County · Motorway · 144,352vehicles9,607trucks · 6.7%
Road class
Motorway
Congestion ratio
90.7%
Median trip time
42.1 min
Drivers’ median age
48.1 yrs
Drivers’ average income
$147,204

Yankee Division Highway is a trunk route for the state, carrying 17.7 times the state average on its busiest stretch; trucks are 6.7% of it, in line with the state-wide 6.9%.

5I 93Middlesex County · Motorway · 144,064vehicles11,747trucks · 8.2%
Road class
Motorway
Congestion ratio
85.2%
Median trip time
39.3 min
Drivers’ median age
45.6 yrs
Drivers’ average income
$135,728

I 93 carries 17.6 times the state average at its busiest, 11,747 of them trucks (8.2%, above the state-wide 6.9%).

6I 93Norfolk County · Motorway · 143,040vehicles10,158trucks · 7.1%
Road class
Motorway
Congestion ratio
77.5%
Median trip time
43.6 min
Drivers’ median age
47.6 yrs
Drivers’ average income
$139,386

I 93 carries 17.5 times the state average on its busiest stretch, where the median trip lasts 43.6 minutes.

7John F. Fitzgerald ExpresswaySuffolk County · Motorway · 132,235vehicles7,524trucks · 5.7%
Road class
Motorway
Congestion ratio
93.5%
Median trip time
42.2 min
Drivers’ median age
42.8 yrs
Drivers’ average income
$121,951

At 16.2 times the state average, John F. Fitzgerald Expressway draws drivers from neighborhoods averaging $121,951 in household income.

8Amvets HighwayNorfolk County · Motorway · 117,760vehicles10,218trucks · 8.7%
Road class
Motorway
Congestion ratio
88.5%
Median trip time
42.5 min
Drivers’ median age
47.0 yrs
Drivers’ average income
$113,718

A main artery: Amvets Highway's busiest stretch carries 14.4 times the state average; trucks are 8.7% of it, above the state-wide 6.9%.

9I 93Essex County · Motorway · 114,877vehicles10,081trucks · 8.8%
Road class
Motorway
Congestion ratio
61.3%
Median trip time
36.7 min
Drivers’ median age
47.4 yrs
Drivers’ average income
$130,584

I 93 is a trunk route for the state, carrying 14.1 times the state average on its busiest stretch; trucks are 8.8% of it, above the state-wide 6.9%.

10Pilgrims HighwayNorfolk County · Motorway · 113,272vehicles8,508trucks · 7.5%
Road class
Motorway
Congestion ratio
89.5%
Median trip time
41.6 min
Drivers’ median age
48.4 yrs
Drivers’ average income
$136,685

Pilgrims Highway carries 13.9 times the state average at its busiest, 8,508 of them trucks (7.5%, above the state-wide 6.9%).

Ranked by trucks per day

Cars and light vehiclesTrucks
1Wilbur Cross HighwayWorcester County · Motorway · 53,061vehicles12,752trucks · 24.0%
Road class
Motorway
Congestion ratio
41.1%
Median trip time
70.2 min
Drivers’ median age
47.5 yrs
Drivers’ average income
$118,614

Wilbur Cross Highway carries 6.5 times the state average on its busiest stretch, where the median trip lasts 70.2 minutes.

2Massachusetts TurnpikeWorcester County · Motorway · 72,873vehicles12,104trucks · 16.6%
Road class
Motorway
Congestion ratio
54.8%
Median trip time
63.2 min
Drivers’ median age
47.0 yrs
Drivers’ average income
$120,584

Drivers on Massachusetts Turnpike are on long journeys, a median 63.2 minutes against 34.4 state-wide: a through route more than a local street.

3I 93Middlesex County · Motorway · #5 by traffic144,064vehicles11,747trucks · 8.2%
4Southeast ExpresswaySuffolk County · Motorway · #1 by traffic174,449vehicles10,936trucks · 6.3%
5Amvets HighwayNorfolk County · Motorway · #8 by traffic117,760vehicles10,218trucks · 8.7%
6Southeast ExpresswayNorfolk County · Motorway · #2 by traffic157,118vehicles10,204trucks · 6.5%
7I 93Norfolk County · Motorway · #6 by traffic143,040vehicles10,158trucks · 7.1%
8I 93Essex County · Motorway · #9 by traffic114,877vehicles10,081trucks · 8.8%
9Yankee Division HighwayNorfolk County · Motorway · #3 by traffic151,640vehicles9,791trucks · 6.5%
10I 495Middlesex County · Motorway · 95,188vehicles9,763trucks · 10.3%
Road class
Motorway
Congestion ratio
72.5%
Median trip time
47.8 min
Drivers’ median age
48.1 yrs
Drivers’ average income
$133,877

I 495 carries through traffic: the median trip using it lasts 47.8 minutes, against 34.4 for the state.

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

MassachusettsDepartment 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

Explore further

TrafficZoom platform

— street-level analytics and custom corridor reports.

Map AI

— demographics, housing and mobility data.

States near Massachusetts

The same traffic breakdown for the states closest to Massachusetts.

Need segment-level traffic data?

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

Counties in Massachusetts

Traffic counts, truck share, congestion and driver demographics for each of the 14 counties TrafficZoom measures in Massachusetts.