The Salisbury Highway (Route A13 / National Highway A13) is a 12 kilometre major connecting road in the northern suburbs of the Adelaide metropolitan area.The Highway is dual carriageway in its entirety. It starts as Route A13 in Elizabeth as John Rice Avenue. Past the suburb of Salisbury it takes on its Salisbury Highway name. It then runs parallel to Main North Road (Route A52) and crosses over Kings Road (Route A18).