Resources

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.

Info card providing advice about cumulative work days and periods.

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.

This information is no longer available in factsheet format.

This report follows on from Opus Report 95-526264.01, which recommends a test procedure for New Zealand basecourse materials.

The correlation between road roughness, as measured by the NAASRA roughness meter, and the profile factor, measured by profile beams, was investigated between 1992 and 1995.

Experimental and theoretical studies of the properties and performance of electromagnetic loops and feeder lines used in road vehicle detections systems were carried out to determine causes of erratic behaviour of loops, and to improve their performa…