Substantial growth is currently occurring and is forecast to continue in the Whangaparāoa Peninsula, Weiti, Orewa, Silverdale and surrounding areas. As an example, in Silverdale-Dairy Flat, around 15,000 new homes are expected to be built over the next 30 years, with 6,000 of these built over the next decade.
While most of the development areas can be designed to have well connected multi-modal transport choice, the peninsula has only one main access road, Whangaparāoa Road that connects the entire area to the Hibiscus Coast Highway and SH1. This geographical environment results in very limited travel choice and makes the route susceptible to congestion and incidents.
Penlink will provide a new connection between the Northern Motorway and the Whangaparāoa Peninsula, bypassing the constrained Silverdale interchange.