“The number of cones is completely unnecessary.”

He said he has no problems with the work being done, as the kerb and channel needed replacing, and the health and safety aspects are part of that – “but it needs to be within reason”.

Roading contractors were wasting too much money on over-the-top safety measures, especially road cones, he said.

“It certainly needs to be looked at.”

Ashburton District Council contractors have been renewing the kerb and channel on Walnut Ave, between Oak Grove and West Street/SH1 since May 20.

Council infrastructure and open spaces group manager Neil McCann said the project costs of $180,000 included around $4000 (2.2%) for cones, fencing, and temporary pedestrian crossings.

“Given that this work involves large heavy machinery, an open trench, and is also well used by Ashburton College, domain users and a rest home, the thorough safety measures to protect the public and the construction are appropriate and necessary.”

The work is being carried out in three segments, starting at the Oak Grove end in late May.

The new kerb and channel are not as deep as the old one, but will be higher than a standard kerb to make it difficult for vehicles to be able to drive up onto the Ashburton Domain, McCann said.

Logan’s observations come after Transport Minister Simeon Brown put NZ Transport Agency Waka Kotahi on notice over the cost of its traffic management.

Brown told a Budget scrutiny select committee last month it was “unacceptable” that NZTA did not know the costs of what is spent on temporary traffic management.

On top of making NZTA start to measure the costs from September, a new less prescriptive code was coming in that should be more efficient, he told MPs.

“I’ve received advice that in some cases where traffic management’s been prescribed, it’s actually more dangerous putting out the road cones than it is actually doing the work,” Brown said.

“So we actually just have to take a safety at a reasonable cost approach, rather than a safety at any cost approach.”

He added a recent Waka Kotahi study found that, at many sites, lots of road cones were being left out unnecessarily, frustrating motorists.

“There’s been an infestation.”

LDR is local body journalism co-funded by RNZ and NZ On Air.