Resources

Profile variance, which is already listed in the NZ Transport Agency's RAMM database, is a measure of the difference between the actual road profile and its moving average over selected moving average lengths.

Over the past decade, the longitudinal profiling of wheelpaths has become routine with the advent of laser-based high-speed monitoring systems. A study was undertaken in 1998 to investigate the suitability of latest generation spectral analysis metho…

The object of this study was to gather data on the levels of bitumen oxidation found in dense asphalt surfacings.

There have been a number of high-profile early failures in New Zealand pavements (rut depths greater than 20mm observed early in the pavement life) associated with ‘greenfield’ pavements (pavements not subjected to traffic during construction).

Investigations into the cohesive properties and oxidation resistance of an acid-cured, epoxy-modified open-graded porous asphalt (EMOGPA) were undertaken, and an associated field trial constructed on State Highway 1 in Christchurch in December 2007.

Bridge health monitoring is a method of evaluating the ability of a bridge to perform its required task (also called fitness for purpose) by monitoring the response of the bridge to the traffic loads it has to withstand.

The corrosion of reinforcing bars and prestressing steel is the most significant risk to the durability of concrete road bridges in New Zealand.

Pavement performance modelling for New Zealand roading networks, currently relies on an adjusted structural number (SNP) which is a single parameter intended to describe the performance of a multi-layered pavement structure in terms of its rate of de…

A study was made of proposed means by which water can enter chipseals surfaces and induce flushing.

Bridge health monitoring is a method for evaluating the ability of a bridge to perform its required task (also called fitness for purpose) by monitoring the response of the bridge to the traffic loads it has to withstand.