Key bus routes of the Massachusetts Bay Transportation Authority system were the 15 routes that had high ridership and higher frequency standards than other bus lines, according to the 2004 MBTA Servi
Route 1, which runs on Massachusetts Avenue, is one of the busiest MBTA bus routes, with service every 8 minutes during rush hour
A route 15 bus at Nubian station in 2024
A route 28 bus at Nubian station in 2024 with its headsign advertising the fare-free program
Route 39 bus on Centre Street in 2017
Watertown Carhouse is a bus maintenance facility and former streetcar carhouse located in the southern section of Watertown, Massachusetts, across the Charles River from Watertown Square. As Watertown
Watertown Yard bus stop in 2025
An outbound train arrives at Watertown in 1967
Watertown Carhouse in 2021