The government wants to increase the speed limit on Christchurch’s Southern Motorway to Rolleston to 110kph.

The proposed change would apply from the Curletts Rd interchange in Addington to the Weedons Rd interchange in Rolleston.

Transport Minister Simeon Brown said it would mean faster journey times for Kiwis travelling in and out of Christchurch.

“Boosting economic growth and productivity is a key part of the Government’s plan to rebuild the economy. This proposal supports that outcome by reducing travel times and increasing efficiency on this key South Island freight route.”

“We know how critical this connection is for motorists and freight operators, and we’re committed to ensuring that this state highway enables people to get to where they want to go, quickly and safely.”

Brown said the Southern Motorway was built to a high safety standard, with features “that greatly reduce the risk of death or serious injury in a crash”, including a flexible median barrier, and a smooth alignment which offers good visibility for drivers.

In July, Selwyn mayor Sam Broughton wrote to the Ministry of Transport, Brown and Act Party leader David Seymour suggesting the speed limit be increased to 120kph.

“Whether it is for general traffic, direct public transport services, or moving freight ... increasing the speed ... will assist in improving efficiency and connectivity while still being safe,” he wrote.

“This is reflected in generally higher average speeds above 100kph we already observe along the motorway.”

Consultation on the increased speed limit begins on September 3 and closes on October 1.

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