M3 Corridor and Highways Map
The M3 Corridor Region and its Major Highways

Middlesex 3 communities are located 15 miles northwest of downtown Boston/Cambridge and offer a robust transportation network providing easy access to points locally, regionally and beyond.

Whether by bicycle, car, freight, bus, train or in the air, this vibrant corridor and all of its amenities are a quick and easy ride away.


  By Automobile

  • US Route 3 and the Lowell Connector run through the nine communities
  • Access to Route 95 in Burlington, 495 in Lowell, Westford and Chemlsford, and Routes 2 and 93 in Lexington and neighboring communities
  • New Mitre Link extension in Burlington/Bedford/Billerica

  By Airplane

  • Easy access to two international airports: Logan Airport and Manchester(NH)/Boston Regional Airport, both located within 25 miles of the coalition communities.
  • Bedford is also home to Hanscom Field with limited commercial flight offering within the Northeast US and Southeast Canada.

  Public Transportation

  • Massachusetts Bay Transit Authority (MBTA) bus service.
  • Regular commuter rail service into Boston via the Purple Line (Commuter Rail) with stops in downtown Lowell and North Billerica.
  • Lowell Regional Transportation Authority (LRTA) services all of Lowell as well as parts of Chelmsford, Billerica and Burlington.
  • The town of Burlington operates a local bus service the “B-Line” with routes throughout the Town of Burlington and the town of Lexington runs the local “LexPress” bus.

  Walking, Biking, Boating

  • Minuteman Bikeway in Bedford and Lexington, the terminus of an 11 mile heavily used bike trail that ends in Cambridge.
  • The Bedford Narrow-Gauge Rail-Trail connects Bedford and Billerica on a converted rail line.
  • Bruce Freeman Rail Trail which runs through Chelmsford to the Lowell Line.


Transportation Committee Resources

Click below for more information on committee resources, links to public transportation information, and additional helpful web services.

M3 Community Compact

Click below to learn more about the Middlesex 3 Regional Transportation Community Compact, which works with the state and transportation agencies to evaluate current public transportation services in the area, and develop recommendations for improvements to services that fail to meet current and future demand.