Resources

This project involved an investigation carried out in 2004-05 into the mechanical properties of, and potential applications for, asphalt millings in the construction of New Zealand roads.

Road traffic noise is a major cause of environmental concern in New Zealand.

A methodology was developed in 2006–09 to quantify the benefits of waste minimisation in road construction.

This report describes the outcomes of a study commissioned by the NZ Transport Agency to inform local authorities about the costs and benefits of transport modes.

This study investigated the potential to define a benefit cost based on the reduction of contaminants provided by a road stormwater run-off treatment device.

Coal tar-derived roading material contains over 1000 times more polycyclic aromatic hydrocarbons (PAHs) than equivalent bitumen pavements and has been identified as a major source of PAHs in both Christchurch and Auckland aquatic receiving environmen…

Most chipsealing in New Zealand is carried out using bitumen cutback (i.e.

This report provides the outcomes from research based on the Land Transport New Zealand gravel road monitoring programme that commenced during 2002 and included the cooperation of 51 local authorities.

This report describes a study, carried out in 2006–2007, of the potential toxicity to the environment (ecotoxicity) of cationic bitumen emulsions used for chipsealing (surface dressing) in New Zealand.

There are many techniques for restoring pavement surface microtexture after levels have become deficient.