The WestConnex New M5 (now known as the M8) is a nine-kilometre-long tolled motorway that links the M5 Motorway at Kingsgrove to St Peters interchange. The project consisted of 33kV HV cabling, 690V LV cabling, fibre optic cabling, emergency systems, tunnel feature lighting, roadway lighting, air monitoring system, telephone systems, tunnel CCTV, tunnel integrated speed limit and lane usage signage, tunnel message signage and tunnel PA system.