ABSTRACT

This chapter provides the case studies in Cape Town, and some innovative use of micro-simulation modelling. It presents that modelling can be used to provide a better understanding of the interaction between the road user and the infrastructure to evaluate the potential benefits of engineering counter-measures and to provide a comparative evaluation of the likely safety characteristics of urban road infrastructure, with different operational characteristics, without the need, or use, of historic crash data. The chapter reports on two case studies. One case study deals with the evaluation of surrogate safety, as a result of changes to vehicular outputs for traffic calming measures, and one deals with the interaction between vehicles, pedestrians and the infrastructure. Microscopic traffic simulation allows dynamic traffic modelling that can provide a flexible test environment to study road user performance effects of new and alternative designs, and allows other safety-influencing factors related to the roadway, such as speed and flow, to be estimated.