Resources

This research report examines how benefit and cost appraisals for road operations, maintenance and renewal, and minor work improvements could be undertaken in a manner comparable with the appraisal framework for capital investments.

Roading projects may have adverse effects on indigenous wildlife.

The purpose of this research was to investigate if and how systems dynamic (SD) modelling could be used for understanding traffic flows at an inter-regional (state highway) level, in the context of improving understanding of the relationship between …

As transport network operations become more and more time critical the requirement for knowledge of the performance and state of the network becomes more significant for decision support.

Research was commissioned to investigate the long-term acoustic performance of New Zealand standard porous asphalt made to TNZ P/11 Specification for open graded porous asphalt (OGPA).

Specification for pre-coating sealing chips.

This specification and guidance notes set out the performance requirements for: single coat reseals using sealing chip with an average dimension greater than 5.5mm; multilayer seals using sealing chips in the range of grade 2 to grade 6, as defined i…

Specification and guidance notes for F2 Pipe Subsoil Drain Construction.

Specification and guidance notes for pipe culverts including the construction of trenches; supply and placement of bedding; supply and laying of pipes; jointing of the pipes; construction of headwalls, wing-walls, aprons, drops, and intakes and outle…