I think an overpass road system on its own will make crash corner much safer to negotiate, as the roundabout at Federation Corner has done, but will do little for traffic flow. The main culprit is the 50km/h bottleneck through Port Wakefield as borne out by the northbound traffic hold ups into the town on holiday weekends.
Even if there are two lanes through Port Wakefield it is still 50km/h.
The present roads could be used for travellers wanting to use the facilities offered by Port Wakefield. Others, including the many road transporters, could go around.
Why is Port Wakefield so special? When the highway was upgraded and realigned it bypassed towns like Crystal Brook and Snowtown, both of which had business which depended on through traffic.
Ron Hocking, Port Hughes