On the right of the entrance is the subway that links all the platforms, reached either by steps or lift; it houses the main public toilets, automated teller machines (ATM) and several catering outlets (there is catering on all platform islands except 13–15). A passenger information office and lounge are above the subway, the British Transport Police office and cycle racks are beyond, and at the western end is Platform 4, used by only a few trains. Alongside this is Platform 2, another bay platform but not signalled for passenger trains and used only for stabling empty trains, as is the former Motorail unloading bay alongside. At the far end of this track is the old Fish Dock, occasionally used for stabling engineers' on-track equipment. Beyond the end of the platform the tracks swing to the right (the west) and pass out of sight beneath Bath Road Bridge, a girder bridge that carries the A4 out of the city.