Resources

Displaying 21 - 30 results of 233 for ""

Research Report 612 Lessons to be learned from 15-year-old second-coat seals and reseals

Published:
Category: Activity management , Research programme , Research & reports | Audience: General

The purpose of this research was to isolate and identify the reasons why some reseals have very long lives, and to identify which of these factors could economically be applied to reseals in future contracts, thus leading to a reduction in whole-of-l…

Research Report 605 Benchmarking the operations and maintenance of New Zealand’s roading sector

Published:
Category: Activity management , Research programme , Research & reports | Audience: General

This research project aimed to provide an analysis of the suitability of existing benchmarking methodologies for use in the roading sector in New Zealand.

Research Report 607 Drivers’ understanding of temporary and permanent slippery road signage

Published:
Category: Activity management , Research programme , Research & reports | Audience: Road traffic engineers & consultants

This project aimed to assist the development of understandable, cost-effective static signage to warn drivers of the potential for lower skid resistance in areas renowned for periodic slippery conditions.

Research Report 602 Evaluation of shear connectors in composite bridges

Published:
Category: Activity management , Research programme , Research & reports | Audiences: Advice and assistance, General, Road controlling authorities

There are approximately 270 bridges on New Zealand’s state highway network and many more bridges on local roads with steel concrete composite superstructures.

Research Report 599 Review of the NZ Transport Agency treatment selection algorithm

Published:
Category: Activity management , Research programme , Research & reports | Audience: General

The objective of this research, carried out between 2012 and 2015, was to improve the treatment selection algorithm (TSA).

Research Report 598 Cracking in specialist surfacing systems

Published:
Category: Activity management , Research programme , Research & reports | Audience: General

Specialist surfacings such as high-friction and coloured traffic-calming surfaces have gained huge popularity since their introduction.

Research Report 099 Bitumen emulsion sealing: New Zealand field trials

Published:
Category: Activity management , Research programme , Research & reports | Audience: General

In April 1994 a comparative trial of the performance of bitumen emulsion and cutback bitumen as chipsealing binders was constructed.

Research Report 448 Wider economic impacts of transport investments in New Zealand

Published:
Category: Activity management , Research programme , Research & reports | Audience: General

This paper develops a methodology and evidence to enable the assessment of wider economic impacts of transport.