Resources

Displaying 211 - 220 results of 233 for ""

Research Report 163 Influences of vehicle loading on pavement wear

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

While pavement design and management practices are based on static axle loads, the actual loads applied to pavements are dynamic, varying as the suspension responds to the unevenness in the pavement surface.

Research Report 021 Investigation into the use of solvents for bitumen testing

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

Dipentene (a solvent derived from radiata pine) and toluene were investigated as alternatives to the ozone-depleting methyl chloroform used in bitumen content determinations of asphalt.

Research Report 207 Effect on pavement wear of an increase in mass limits for heavy vehicles

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

In order to improve the efficiency of the road transport industry in New Zealand, a range of mass limit increases for heavy vehicles has been proposed.

Research Report 205 Guide to estimation and monitoring of traffic counting and traffic growth

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

This report investigates traffic patterns and estimation of annual average daily traffic, and suggests a basis for a traffic count monitoring programme based on Transit New Zealand's regular traffic monitoring strategy.

Research Report 151 Dynamic load properties of New Zealand basecourse

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

This report follows on from Opus Report 95-526264.01, which recommends a test procedure for New Zealand basecourse materials.

Research Report 150 Verification of road roughness by profile beam during construction

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

The correlation between road roughness, as measured by the NAASRA roughness meter, and the profile factor, measured by profile beams, was investigated between 1992 and 1995.

Research Report 156 Flushing processes in chipseals: effects of water

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

A study was made of proposed means by which water can enter chipseals surfaces and induce flushing.

Research Report 153 Wavelength analysis of state highway longitudinal profiles

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

Over the past decade, the longitudinal profiling of wheelpaths has become routine with the advent of laser-based high-speed monitoring systems. A study was undertaken in 1998 to investigate the suitability of latest generation spectral analysis metho…

Research Report 144 The relationship between dynamic wheel loads and road wear

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

The models of traffic-induced pavement wear, which form the basis of current pavement design and management practices, are based on static axle loads.