Resources

Current road roughness deterioration modelling and analysis tends to focus on the prediction of roughness progression in terms of change in the IRI over time.

Repeated load triaxial (RLT) tests were conducted on the granular and subgrade materials used at CAPTIF (NZ Transport Agency's test track).

The costs of applying Transit New Zealand competitive pricing procedures (CPP) (brought into operation in 1991) to the letting of contracts for the engagement of professional services for Transit New Zealand-funded roading work are evaluated, based o…

This research report presents a literature review on the topic of long-life pavements and provides details of an assessment of heavy duty structural asphalt pavements in New Zealand, carried out in 2001-2002.

The historical development of the traditional Marshall and the modern gyratory-based, performance-related asphalt mix design procedures is described.

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

The objective of this project, carried out in 2001, was to investigate the design of an operational scale device for testing the 'road-friendliness' of heavy vehicle suspensions.

This report describes the results of a project, carried out in 2000–01, to investigate the enhancements carried out to road deterioration (RD) and works effects (WE) models included in the predictive pavement modelling system, HDM-4, with respect to …

The objective of Stage 1 of this research project (carried out in 2002-2003) was to research and identify the most appropriate precast concrete bridge beam shapes that should be adopted in New Zealand as industry standards for the future.

Corrosion of steel reinforcement is the most serious and common deterioration problem affecting reinforced concrete bridges in New Zealand.