Resources

This study provides guidance on vehicle emission factors (VEFs) for loads of copper and zinc discharged in road runoff, and the performance of stormwater treatment devices for removing these metals and total suspended sediments (TSS).

A new method of biodiversity assessment is developed to characterise the biodiversity values of roads across New Zealand.

The report provides a literature review and research plan describing where further research is needed to quantify or value external effects, otherwise known as externalities, from the land transport system.

Potential economic disbenefits of dust emission from unsealed roads impact on crop production, animal food supply and health, accident potential, property values and maintenance costs, vehicle operating costs and personal health.

This report is Section IV of four 'stand alone' documents that can be used by road controlling authorities, maintenance engineers, and industrial painting contractors when carrying out removal or maintenance of lead-based paints on steel ro…

An evaluation of models which predict noise levels from road traffic in terms of the LEQ (24-hour) index was undertaken in 1998 by comparing predicted levels with noise levels measured at 20 sites.

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 …

Following an earthquake on 18 June 1994, a large slip partially blocked the Bealey River in Arthur's Pass National Park, South Island, New Zealand, and introduced a large quantity of silt and terrestrial organic matter into the river.

Social severance is the general term applied to the negative effects that roads and their traffic have on social interaction.

The purpose of this study was to gain a better understanding of the expectations, motivations, experiences, information preferences and behaviour of visitors (both domestic and international) travelling on New Zealand’s transport network.