ALDEN WILLIAMS/FAIRFAX NZ
Temporary speed reductions on the alternative highway will remain in place until SH1 is repaired. (file photo)
The New Zealand Transport Agency (NZTA) on Monday confirmed the temporary speed reductions, which were introduced after the SH6/63/65/7 route became the top of the South Island’s main trunk line following last November’s earthquake.
The changes were made because the alternative route is much more challenging to drive than the road it replaces, and traffic on the route has increased dramatically.

FAIRFAX NZ
There has been a huge increase in heavy traffic on the alternate highway since the November earthquake.
The NZTA received nearly 300 submissions on the speed reduction proposal. The majority were in favour of lower speeds through townships on the route, but less positive about those sections of open road that had been reduced to 80kmh.

MARION VAN DIJK/FAIRFAX NZ
Though submissions supported lower speeds through townships, they were less positive about speed reductions on stretches of open road. (File photo)
“However, once SH1 becomes fully operational and traffic volumes have reduced to a stable level we will review speed limits on the alternate route again. Ideally this would be within six months of SH1 reopening, but it will depend on traffic volumes.”
Harland said the submissions raised concerns about travel times and limited passing opportunities.

ALDEN WILLIAMS/FAIRFAX NZ
The alternative route will be the South Island’s main road until SH1 is repaired, which is expected to be before Christmas.
He said the perception the lower speed limits had significantly increased travel time was incorrect, with the lower limits increasing travel time by less than two minutes between Christchurch and Picton.
The temporary limits were introduced under emergency legislation, which can only be in place for six months legally. A new bylaw replacing the temporary limits will be in place by June 18.
SH1 is expected to be reopened before Christmas.
Consultation also included proposals to lower speed limits on parts of the Lower Buller Gorge. These received low support, so will not be taken further.
– Stuff