vehicles travelling in the same direction using the Sydney Harbour Tunnel. In November 2014 NSW Roads & Maritime Services proposed an to upgrade the tolling infrastructure which included the construction new tolling gantries at four locations on the northern approaches to the bridge, covering the Bradfield Highway, Cahill Expressway and the Sydney Harbour Tunnel, and the removal of existing tolling gantries at both the northern and southern bridge termini. Exits and interchanges See also References External links Highways in Sydney Toll roads in Australia