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 National Traffic Database is a system for storing traffic data collected from each of approximately 120,000 sections of New Zealand public roads (ie the state highway and local road network).

Eighty drivers in four groups of 20 (10 males; 10 females), aged under 30 years, 40–59, 60–69, and 70 years and over respectively, participated in a study, carried out in 1994 in the Waikato region, New Zealand, to identify factors contributing to cr…

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 splash, spray, and turbulence generated by heavy vehicles (HVs) are of considerable concern to other road users.

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.

Reducing driver distraction, including distraction resulting from mobile phone use, is an aim of New Zealand’s Safer Journeys programme.

The objective of this research (undertaken in 2010–12) was to provide urban bus operators and public transport contracting authorities in New Zealand with practical guidance on methods for diagnosis of urban bus service (un)reliability, the causes of…

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.