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Resources

Displaying 21 - 30 results of 233 for ""

Research Report 634 Effect of road seal type on resistance to traffic stresses

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

This report details research carried out from 2016 to 2017 as the preparatory stage of a larger programme to understand how chipseals may be improved to withstand increases in horizontal shear forces imposed by traffic loadings.

Research Report 633 Analysis and interpretation of New Zealand long-term pavement performance data

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

A comprehensive statistical analysis and review of the dataset was undertaken on the March 2015 LTPP database, including application of transformations on the skewed raw data.

Research Report 628 Standardisation of laboratory compaction energies

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

This research reviewed the New Zealand vibrating hammer laboratory compaction test and energy standardisation thereof.

Research Report 622 Best practice guide for pavement stabilisation

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

New Zealand pavement engineers, in collaboration with colleagues in South Africa and Australia, are recognised internationally as leaders in the use of stabilisation in highway, road, airport, port and industrial hardstand pavement applications.

Research Report 618 Trialling best value delineation treatments for rural roads

Published:
Category: Activity management , Research programme , Research & reports | Audiences: General, Roading contractors

Providing a safe, comfortable, cost-effective visual environment to help drivers navigate rural roads requires a better understanding of the strengths and limitations of different delineation devices, materials and treatment configurations.

Research Report 615 Maintaining the effectiveness of audio tactile profiled roadmarkings for their full life cycle

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

This research considered maintenance of the audio, tactile and visual effects of ATP roadmarkings including for situations where the road surface was to be resealed while the ATP roadmarkings had remaining effective life.

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.