Resources

This report describes research in 2004 and 2005 aimed at improving the means by which the durability of bitumens manufactured or imported to New Zealand for use in chipseals is assessed and monitored.

Recent government legislation and policy promotes an increase in walking and cycling as an alternative to the increasing demand for motor vehicle travel.

The objective of this project was to develop and test an apparatus and procedure for determining natural frequency and damping ratio for heavy vehicle suspension systems. A test has been developed that involves supporting an axle group on collapsible…

The Land Transport Safety Authority, Transit New Zealand and local authorities are partners in the Crash Reduction Study Programme (formerly known as the Joint Crash Investigation Programme) in New Zealand.

A new mix design system for porous asphalt based on maximising the effective void content, but maintaining sufficient strength through the use of polymer-modified bitumen, was developed and trialled.

This study, carried out in 2004 at the Traffic and Road Safety Research Laboratory, University of Waikato, assessed driver reactions to 16 road hazard warning signs of various formats.

The project was aimed at improving overtaking lane design through a better understanding of driver behaviour during overtaking.

This study looked at a sample of street lighting installations spread over the urban areas of nine territorial local authorities.

The measurement of traffic volumes on an extensive nationwide network is a very large task.

Most chipsealing in New Zealand is carried out using bitumen cutback (i.e.