Publications

Safe Intersection Approach Treatments and Safer Speeds through Intersections: Final Report, Phase 1.
The aim of this project is to investigate intersection crashes with a view to determining suitable intersection approach treatments, and opportunities for better managing speeds through intersections, so as to reduce the severity of intersection…
Asphalt Compaction
This Pavement Work Tips provides guidance on estimating the amount of time available to achieve effective compaction under various conditions.
Asphalt Riding Quality
This Pavement Work Tip discusses some of the factors that affect riding quality, and how to ensure a smooth riding asphalt pavement.
Temperature Characteristics of Binders in Asphalt
This Pavement Work Tip outlines the influence of temperature and binder viscosity on handling properties of asphalt using different binders.
Laboratory Study on Relationships Between Binder Properties and Asphalt Rutting
A major study was undertaken to determine relationships between binder rheological properties and the rut resistance of asphalt mixes, as indicated by the laboratory wheel tracking test. Twelve binders, including three bitumens, a Multigrade binder…
Sprayed Seal Cutting Practice
This Pavement Work Tip provides a handy reference to the recommended practice for cutting sprayed sealing binders.
Sprayed Sealing: Selection of Initial Treatments
This Pavement Work Tip provides a guide to selection and use of either prime and seal, or primerseals, as initial treatments for granular pavements.
Treatment of Flushed Seals Using Chemical Solvents
This Pavement Work Tip is a practical guide for restoring texture to bleeding or flushed surfaces by applying additional aggregate with the assistance of chemical solvents.
Review of the Environmental Aspects of Warm Mix Asphalt

The use of warm mix asphalt (WMA) appears to be increasing throughout the developed world in place of conventional hot mix asphalt (HMA). Acceptance depends upon confirmation of the environmental benefits and that on-road performance is at least…

Road Safety Engineering Risk Assessment Part 9: Rural Intersection Crashes
Intersection crashes are one of the more common type of crash that may occur in rural environments. It is therefore important, within a Safe System, that factors that may contribute to intersection crashes and methods that may be used to prevent…