Resources

As traffic volumes grow on the rural road network and four-laning becomes necessary along many road sections, may of the priority-controlled intersections that provide local access to communities are reaching capacity or have safety problems. Little research is currently available in New Zealand to assess the safety implications of the various improvement options, including grade separation, roundabout control and signalised control. The crash prediction models developed in this research project, also with severity ratios, can assist is assessing the likely impact on safety of proposed intersection improvements.