The main east west road through the town is Uxbridge Road (A4020), though the name changes in the main shopping area to The Broadway and for an even shorter section to High Street. Uxbridge Road was part of the main London to Oxford stagecoach route for many years and remained the main route to Oxford until the building of the Western Avenue highway to the north of Southall in the first half of the 20th century. First horse drawn, then electric trams (until 1936) and, then, electric trolleybuses, gave Southall residents and workers quick and convenient transport along Uxbridge Road in the first half of the 20th century before they were replaced by standard diesel-engined buses in 1960.