The Western Highway is the Victorian part of the principal route linking the Australian cities of Melbourne and Adelaide, with a length of approximately 258 kilometres (160 mi) of single carriageway, then 161 kilometres (100 mi) of dual carriageway known as the Western Freeway. It is a part of the National Highway network and designated routes A8 and M8. The western end continues into South Australia as the Dukes Highway, the next section of the Melbourne–Adelaide National Highway. The Western Freeway joins Melbourne's freeway network via the Western Ring Road, in the western suburbs of Melbourne.

Melton is a suburb on the outskirts of Melbourne, Victoria. The suburb is located 47 kilometres (29 mi) west of Melbourne's Central Business District on the city's western rural-urban fringe. It is the administrative centre of the City of Melton local government area. As of the 2021 Australian census, the suburb has a population of 7,953.