Resources

Current road roughness deterioration modelling and analysis tends to focus on the prediction of roughness progression in terms of change in the IRI over time.

Repeated load triaxial (RLT) tests were conducted on the granular and subgrade materials used at CAPTIF (NZ Transport Agency's test track).

The risk involved in pavement design is that the pavement life will be shorter than the design life.

Eight hollow-core precast-prestressed concrete beams were removed and recovered in good condition from the Pahurehure Inlet Bridge No. 2 on the Auckland Southern Motorway, New Zealand, in 1988.

The NZ Transport Agency has been using performance indicator analysis and levels of service reporting for some years to assist with funding allocation, monitoring the application of funds and ensuring these are spent appropriately.

The objective of this research, which was carried out between 2010 and 2012, was to investigate the effectiveness of the current road condition rating system with a view to improving the accuracy and confidence in the data collected.

This report provides guidance on the design of steel-concrete composite bridges, which consist of steel girders and reinforced concrete slabs on top.

This research investigated the effect of road roughness, macrotexture and testing speed on GripTester measurements.

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

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…