Resources

The most common form of distress of aged open graded porous asphalt (OGPA) is loss of chip from the surface (fretting and ravelling) caused by embrittlement through reaction with atmospheric oxygen.

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.

The primary objective of this study, done between July 2003 and June 2004, was to determine relationships between road cross-sectional geometry and heavy vehicle performance and then to use these relationships to estimate the effect of road geometry …

As the demand for a cost-effective and environmentally friendly pavement stabilisation method increases, so has foamed bitumen stabilisation for unbound granular pavement layers started to gain broad acceptance worldwide.

This report presents the results of a 4-year research programme (from 2000 to 2003) involving a combination of field, laboratory based, and statistical modelling studies undertaken to identify critical aggregate properties from the perspective of in-…

This research, (conducted in 2003 on state highways in the upper North Island, New Zealand), aimed to improve safety at passing lanes by examining the influence of lane design on driver behaviour.

An investigation into the application of SASW (seismic analysis of surface waves), to measure the layer thickness and material moduli of pavements to assess pavement strength, was carried out in 2003 on roads in New Zealand.

This report details findings from the New Zealand Long-Term Pavement Performance Programme that aims at the development of deterioration models.

Audio tactile profiled (ATP) road markings (also known by road users as rumble strips) have been used at selected locations on New Zealand roads in recent years.

This research investigated the applicability of accessibility planning in New Zealand as a tool for assessing and improving personal access to essential services for all New Zealanders.