Evaluating safety performance of road projects

In recent years, road safety audits have been adopted in a number of countries to deal with safety deficiencies in road projects as early as possible. In keeping with this trend, Singapore has adopted similar procedures in reviewing its roads. This paper describes a proposed extension of the procedures to include a more quantitative assessment to overcome some of the current problems faced in road safety reviews. The outcome of the quantitative evaluation is a Road Safety Performance Rating (RSPR) of the project with critical components measured in terms of a Road Safety Performance Index (RSPI) and viewed on a Road Safety Performance Chart (RSPC). The advantages of using the RSPR, RSPI and RSPC are given in the paper.