Resources

This research project investigated the differences in cohesive energies of model chipseal samples prepared from bitumen emulsions, the base binders, and the kerosene cutback base binder.

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 project was designed to investigate the importance of drainage maintenance for pavement performance and to recommend a maintenance strategy.

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

A computer model was devised in 1993 to predict heavy traffic flows generated by the operations arising from the 30-year planning period of a production forest (from planting to harvest) in New Zealand, for an area served by a road network.

Leutner shear tests to measure bond strength and flexural beam tests to measure flexibility were conducted on specialist surfacing resins used in New Zealand for coloured and high-friction surfacings.

This research project had the objective of identifying areas where changes could be made in the use of thin layers of asphalt so that improvements in performance could be obtained.

Bridge damage, especially due to pounding and unseating at expansion joints has been observed in almost all major earthquakes.