BAT's buses provide interchange with each other and with the Middleborough/Lakeville commuter rail line of the Massachusetts Bay Transportation Authority (MBTA) at Brockton station.

BAT also runs a fixed route bus service from Brockton to Boston's Ashmont station on MBTA's Red subway line.

Brockton bus service was previously operated by Union Street Railway, until a protracted labor strike prompted the city to buy the routes and buses in September 1973.

One year later, this system was reorganized as BAT to secure state funding, and encourage regional participation.

[5] Many routes leaving the BAT Centre in Brockton are scheduled on a pulse system - meeting at the central hub simultaneously - to provide easy transfers.