Until 1970 the four tracks to the east of Taunton were not used as normal main and relief lines, but with the inner main lines for trains to London and the outer lines for trains to Bristol, to align with the way the tracks diverged at Cogload Junction, some miles to the east of the station. In 1970 under the Western Region of British Rail the central island platform was closed off and all trains stopping at Taunton used the outer platforms, except in an emergency when the central platform was pressed into use. London trains stopping at Taunton (which was most of them) now crossed over to the main lines at the London end of the station. The second pair of lines from Cogload were removed in 1986.