Data exploration and visualisation of crash risk at Perth metropolitan intersections

An issue facing all road agencies is ensuring lives saved per dollars invested are maximised. This is particularly challenging at metropolitan intersections, where strategic investment choices range between a small number of targeted high-cost treatments and a large number low-cost treatments applied across all metropolitan intersections that share similar characteristics. In order to investigate the above, data exploration and analytics were used to provide insights into the viability of alternative treatment programs. Data visualisation was used to help communicate the data story, which improved understanding and acceptance by our stakeholders and decision makers.