Resources

A methodology has been developed to identify the cost-optimal earthworks cut slope design and establishment of appropriate earthworks contingency factors.

Deck joints are a potential source of deterioration and maintenance problems in a bridge structure and have been identified as the most common maintenance problem in New Zealand road bridges.

While pavement design and management practices are based on static axle loads, the actual loads applied to pavements are dynamic, varying as the suspension responds to the unevenness in the pavement surface.

The vehicle-ownership forecasting model research project, undertaken in 1996–1997, is described.

This report describes the results of a project to investigate sensitivity of the input parameters used for NZ dTIMS system.

Research carried out in 2001 examined the causes of cycle crashes on roads, footpaths, and cycle ways throughout New Zealand, through a survey of injured cyclists.

Dipentene (a solvent derived from radiata pine) and toluene were investigated as alternatives to the ozone-depleting methyl chloroform used in bitumen content determinations of asphalt.

This report presents the findings of the monitoring programme undertaken by GHD at Snake Hill (SH1 RP 144/11.34), a road slip site which was stabilised using graded gravel column drains.

In order to improve the efficiency of the road transport industry in New Zealand, a range of mass limit increases for heavy vehicles has been proposed.

This report investigates traffic patterns and estimation of annual average daily traffic, and suggests a basis for a traffic count monitoring programme based on Transit New Zealand's regular traffic monitoring strategy.