The Princes Highway is the primary north– south connection between Greater Sydney, the City of Wollongong, the Illawarra– Shoalhaven region and the south coast of New South Wales. It carries a mix of freight and passenger traffic for local, long-distance and tourism trips.
Between Nowra and the Victorian Border, the highway experiences congestion, has a poor safety record and has freight productivity constraints. This is caused by the challenging topography, mass-limited bridges, and the two-lane, undivided road design, which offers limited overtaking opportunities.
An average of ﬁve fatalities and 40 serious injuries per year were recorded along the corridor over the last ﬁve years. Some sections are experiencing crash rates more than double the New South Wales median fatal and serious injury crash rate.