The Western Sydney Infrastructure Plan (WISP) is a 10-year program of works delivering new and upgraded roads in Western Sydney. The plan aims to improve and better integrate regional transport links, as well as accommodate increased traffic flow associated with the planned Western Sydney Airport at Badgerys Creek. The Plan includes:
- upgrading The Northern Road in stages to a minimum of four lanes between Narellan and Jamison Road, South Penrith, including a grade separated interchange (underpass) at Bringelly Road. Construction on the first section of The Northern Road started in 2016
- building a new M12 Motorway with four lanes. This will provide direct access to the planned Western Sydney Airport site between the M7 Motorway, Cecil Hills and The Northern Road, Luddenham
- upgrading Bringelly Road to a minimum of four lanes between The Northern Road and Camden Valley Way, Leppington. (construction started January 2015)
- building the Werrington Arterial Road by upgrading Kent Road and Gipps Street to four lanes between the Great Western Highway and at the M4 Motorway, including two new east facing ramps on the M4 Motorway (completed May 2017)
- upgrading the intersection of Ross Street and the Great Western Highway, Glenbrook, and
- a $200 million package for local roads upgrades.