It was actually built for this speed, but for some obscure reason that wasn’t applied when it was opened by Comrade Jacinda in March 2022.
Transmission Gully will move to a 110 km/h speed limit from 12:01 am on 16 February 2026 for the 27 km stretch of State Highway 1 between the Linden and Paekākāriki interchanges, following government approval.
Transport Minister Chris Bishop said the change supports faster, safer travel on a route designed for higher speeds, noting low crash rates and no fatalities since opening in 2022 despite heavy daily traffic volumes.
Public consultation in 2025 showed strong support, with 92% of submissions backing the increase.
The higher limit will not apply to heavy vehicles or vehicles towing trailers, which remain capped at 90km/h. Nearby Raumati Straights will stay at current limits due to safety and design constraints, though future upgrades remain possible depending on funding and further planning.
Pfft , the revenue raisers will be flooding that Raumati straight for easy pinging of unsuspecting motorists .
110 kph for trans gulley , then back to 100kph for Raumati straight before going back to 110 for the pram ewy road .
Will be a cash cow for the the parasites who used to sit at the bottom of the hill hiding in the bushes with streams of skodas waiting to fly out at huge speed to carve up the traffic and catch the unsuspecting speeders !