aims to reduce congestion and improve traffic flow along the Pennant Hills Road section of Cumberland Highway. Since its opening, all trucks and buses over 12.5 metres long or over 2.8 metres clearance height (except vehicles transporting dangerous goods, oversize vehicles, or that have a genuine destination only accessible via Pennant Hills Road) travelling between the M1 and M2 are forbidden to use Pennant Hills Road and must use the NorthConnex tunnels instead. Trucks and buses will be monitored by two gantries located along Pennant Hills Road, one at Normanhurst and one at Beecroft / West Pennant Hills. A fine of A$194 with no demerit points will also be imposed on truck and bus drivers detected (with the use of cameras mounted on gantries) using Pennant Hills Road with the traffic flow. Exits and interchanges See also NorthConnex References External links Sydney Metroads