Resources

Displaying 651 - 660 results of 712 for ""

Research Report 220 Assessing passing opportunities – stage 3

Published:
Category: Integrated land use and transport systems , Research programme , Research & reports | Audience: General

This research continues recent work to investigate ways of analysing and providing for improved passing opportunities on state highways in New Zealand.

Research Report 022 Safaniya bitumen – verification of chemical properties

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

One 1986 and three 1991 180/200 penetration grade Safaniya bitumens (from Saudi Arabia) produced by the Marsden Point Refinery were analysed by a range of procedures to detect any significant differences in chemical composition.

Research Report 216 Weathering characteristics of modified marginal aggregates

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

The objective of this project, carried out in 2000–2001, was to study the weathering quality index (WQI), the measure used in the Transit New Zealand M/4:1999 specification basecourse aggregate, in order to determine the changes occurring when a marg…

Research Report 214 Prediction of pavement performance from repeat load tri-axial (RLT) tests on granular materials

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

An accelerated pavement test was conducted at CAPTIF (Canterbury Accelerated Pavement Testing Indoor Facility), Christchurch, New Zealand, between 1999 and 2001, for the purpose of validating the use of the repeat load tri-axial (RLT) apparatus.

Research Report 213 Determination of the structural number of pavements on volcanic subgrades

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

Pavements constructed on volcanic soils behave differently to non-volcanic soils and have higher deflections when dynamically loaded.

Research Report 190 Traffic noise guidelines for low noise areas

Published:
Category: Environmental impacts of land transport , Research programme , Research & reports | Audience: General

A study, carried out in 1998–2000, investigated if a traffic noise lvel of 55dBA, the level allowed in the 1994 Transit New Zealand Road traffic noise guidelines, was an acceptable limit in New Zealand for areas that previously had low traffic noise.

Research Report 189 Probabilistic techniques for optimising cut slope earthworks

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

A methodology has been developed to identify the cost-optimal earthworks cut slope design and establishment of appropriate earthworks contingency factors.