Resources

Modified bituminous materials can be used to advantage on roads that are subject to high stress, such as on heavily trafficked sections, sharp bends, and bridge decks, or to wide variations of temperatures.

Recent research both in New Zealand and Australia has identified the benefits associated with the installation of various barrier types and in particular the significant benefits associated with wire rope barriers (WRBs).

The purpose of this research was to identify the barriers to using tyre-derived crumb rubber in bitumen binder in New Zealand roading and the methods to remove these barriers to create market demand for New Zealand waste tyre-derived products.

This report details research carried out from 2012 to 2015 into chipseal flushing.

The application of geosynthetics (ie geogrids) for the stabilisation of basecourses prepared with a River Run rounded gravel aggregate was investigated.

Literature on the monetary valuation of the environmental effects of roads and road traffic on adjoining residential land use is reviewed.

The National Association of Australian State Roading Authority (NAASRA) roughness meter is often required to be operated at low speeds, with acceleration and deceleration from and to a standing start, and through a tortuous pavement alignment.

This report documents a review, carried out during 1993/1994, of the Treatment Selection Process (TSP) contained within the RAMM (Road Asset and Maintenance Management) system.

This research was undertaken between July 2008 and May 2011 and brings together findings from a review of literature and a survey of New Zealand bridge asset management practices.

A programme of research was undertaken to better understand chip loss on curves with the aim to improve chipseal design and selection practices.