The Mapping for Relationship between Road Accidents and Traffic Congestion for Expressway Management Decision

Traffic congestion and road accidents are part of the major transportation problems across the globe. In a developing country like Malaysia, traffic congestion and road accidents are among serious problem that have impacted many sectors namely economic and social sectors. In this study, the relation between traffic congestion and road accidents is explored based on data collected from main expressway in Klang Valley. The objective of this study is to identify the locational pattern between traffic congestion and road accidents (if there is) as well as to propose method of data collection that provides the information. Descriptive analysis and Single Factor ANOVA are used to explore and analyse the primary data set of traffic congestion and the secondary data set on road accidents obtained from the selected Expressway. It is found that heavy traffic congestion occurs the most especially during morning peak hours on weekdays. However, road accident happens randomly at various location and time. From the mapping and test done, it shows there is no significant relation between traffic congestion and road accidents, yet some locations are prone to both traffic congestion and road accidents.