Resources

The noise from road traffic affects large numbers of people living in the vicinity of State Highways and arterial roads.

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.

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.

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

This project was undertaken in 2001 to review environmental protection measures that have been applied through the Resource Management Act (RMA) process, to a sample of 35 state highway roading projects constructed in New Zealand, between the years 1…

This project was undertaken in 1997–98 to prepare two sets of provisional environmental guidelines for roading contractors carrying out road works in New Zealand.

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.