Allston-Brighton is located on the western edge of Boston, bordering Brookline to the south, Boston College and Newton to the west, Boston University and Kenmore Square to the east, and Cambridge, Watertown, and the Charles River to the north. Though the boundaries between Allston and Brighton tend to be quite blurred, for practical purposes Warren St. cuts Allston-Brighton in half, with Brighton to the west and Allston to the east.
By bus
Allston-Brighton is served by buses 57, 64, 65, 66, 70, 70A, 86, 501 and 503. The 57 bus traverses Allston-Brighton through its center; board at any B-line stop from Kenmore Square to Packard's Corner. The 66 and 64 buses respectively connect Cambridge's Harvard and Central Squares to Allston-Brighton. The 86 bus runs from Sullivan Square in Charlestown, through Union Square Somerville and Harvard Square Cambridge, down Market St. in Brighton, and turns around at the Cleveland Circle stop on the C-line. The 70 and 70A buses run along Western Ave. in North Allston-Brighton, both connecting Central Square Cambridge to Waltham with the 70 going to Cedarwood and 70A to North Waltham. The 501 and 503's being express buses running only on weekday rush hours down through Washington Street in Brighton Center westward towards the Mass Pike in Newton Corner where they then run eastwards to their respective destinations, Downtown Boston and Copley Square.