Road Surveying after the Kaikoura earthquake
Earthquakes hit roads hard. After the devastating Kaikoura earthquake in New Zealand, the main State Highway (SH1) had to be partially closed. Diverting the traffic meant extra stress on the rest of the road network and notably for the roads used for truck traffic.
Up to 8,000 vehicles a day now use the diversion route between Picton and Christchurch via Murchison and Springs junction, up fourfold since SH1 closed. The New Zealand Transport Agency (NZTA) is actively monitoring for any deterioration to the diversion road to ensure it remains in good condition and as part of highway asset management good practice. The Agency therefore asked for extra SCRIM and High Speed Data survey on the diversion.
W.D.M. Limited was asked to travel to New Zealand’s South Island in May 2017, to carry out additional surveying on the diversion routes for the length of the State Highway 1 (SH1). The SCRIM spent two days measuring the west road skid resistance of the surface, plus additional special testing at Invercargill, before returning to its base in Wellington.
Watch a footage of a road damaged by the Kaikoura earthquake. Source: RNZ