Resources

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.

An overview of non-traditional backfill materials has been compiled from material identified in an international literature search carried out in 1992.

Impact factors were recorded on main members and deck slabs (where appropriate) of 12 bridges of between 9 and 30 metre span, under normal traffic conditions.

This project involved a review of literature that was available in 1993 with additions from some 1995 documents, on the design and construction of unbound granular pavements.

Ground penetrating radar (GPR) as a non-destructive pavement investigation tool, and its application for use in New Zealand, have both been evaluated.

Research was commissioned to investigate the long-term acoustic performance of New Zealand standard porous asphalt made to TNZ P/11 Specification for open graded porous asphalt (OGPA).

Robust condition data feeding into asset management processes is a key step towards having confidence in long-term strategies for renewals and replacements.

A review of the performance of slopes in historical earthquakes, a review of relevant literature describing recent research, consideration of New Zealand’s distinctive topography and seismicity, and limited numerical analyses have been carried out.

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.