sbiddle:joker97: why are there 2 different speed limits on one stretch of road? how weird!
The stretch of motorway from The Terrace Tunnel to Johnsonville on SH1 and just past the Ngauranga Interchange on SH2 has a TMS (traffic management system) and is a variable speed zone area, meaning the official speed limit is shown on the overhead screens. This speed limit will change depending on traffic volumes, with the goal of better managing traffic flow.
If those are yellow color on overhead sihns they are not enforceable only as suggested speed. They have them on at AKL Harbor bridge and no one follows it..