Resources

Displaying 21 - 30 results of 67 for ""

Research Report 152 Field evaluation of catchbasin insert performance

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

Studies carried out (between 1992 and 1995) on stormwater quality in Auckland Region, New Zealand, reveal that suspended solids, heavy metals (such as lead, copper and zinc), and petroleum-based hydrocarbons are present in significant concentrations …

Research Report 368 Long-term dust suppression using the Otta seal technique

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

A 2004 trial of the Otta seal technique in various locations in New Zealand showed that it may be a better option for dust minimisation and, based on life cycle costing, could be a lower-cost option when compared with traditional short-term dust pall…

Research Report 360 Residual binder extraction from emulsions for quality assurance testing

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

Safety and environmental drivers are pushing the New Zealand road construction industry away from hot, cutback binders and towards the use of emulsified bitumen as the delivery medium for chipseal binders.

Research Report 315 Identifying sensitive receiving environments at risk from road runoff

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

A GIS-based screening tool is described for identifying and ranking sensitive receiving environments (SREs) at risk from road runoff from state highways and local roads in New Zealand.

Research Report 309 Trials of the use of recycled hot mix and ground tyre rubber in hot mix asphalt

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

This research, carried out in 2003–2004, aimed to facilitate the recycling of asphalt mix, recycled asphalt pavement (RAP), and crumb rubber (CR) from waste tyres into New Zealand roads.

Research Report 003 Traffic noise: prediction of interrupted flow noise

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

Reliable techniques have been used in a number of countries throughout the world for some years now for the prediction, measurement, assessment and control of road traffic noise.

Research Report 351 The effect of adding recycled glass on the performance of basecourse aggregate

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

Glass bottles collected by councils are forming large stockpiles, particularly in the South Island, as it is uneconomic to transport the glass to the Auckland plant for recycling.

Research Report 345 Contaminant characterisation and toxicity of road sweepings and catchpit sediments: towards more sustainable reuse options

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

In 2006–2007, 35 road-derived sediments (RDS) consisting of street sweepings and catchpit (ie sump) sediments, were collected from three cities in New Zealand; namely Auckland, Hamilton and Christchurch.

Research Report 318 Clay mineralogy of modified marginal aggregates

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

This study, undertaken in 2003–2004, aimed to: study changes produced when additives are mixed with roading aggregates containing swelling clay minerals; identify the most suitable chemical to use for a particular rock type and the quantity required …