Overview of the proposed Campbelltown Road upgrade Roads and Maritime Services (Roads and Maritime) proposes to upgrade 5.4 kilometres of Campbelltown Road between Camden Valley Way, Casula and Brooks Road, Denham Court. The proposed upgrade would cater for an anticipated increase in traffic and residential and commercial activity in the area as a result of the development of the South West Growth Centre (SWGC), as well as changes to the wider area and existing land uses. Campbelltown Road is one of the main arterial transport corridors in the SWGC.