The A36 is a trunk road and primary route in England that links the port city of Southampton to the city of Bath. At Bath, the A36 connects with the A4 road to Bristol, thus enabling a road link between the major ports of Southampton and Bristol. Originally, the A36 continued onto Avonmouth, but this section was renumbered to the A4. On its way south from Bath the A36 passes a number of towns and a city, including Warminster, Wilton and Salisbury in Wiltshire, and Totton in Hampshire, on the western outskirts of Southampton, where it joins the A35 road.