Analysing the Impact of Road Intersection’s Safety Towards Road Accidents by Using Ordinary Least Square Regression

Abstract

Road safety is a global issue that affects all countries because it is linked to the road management or operation as a whole. Roads are essential for transit and movement, whether driving, riding, walking, or using a bus. One of the most critical considerations for road users is road safety. This study aims to analyze the road intersection impact with roads accident by using GIS. Specifically, it investigated whether the perceived correlation between road intersection safety has an impact on the road accident. In this context, road intersection safety is translated based on parameters or factors that occur to be in an intersection area which are the road intersection geometry, traffic volume and waiting time at the traffic lights. The relationship was analysed by using correlation and ordinary least square regression. The results showed a positive correlation between two of the road intersection safety factors: higher traffic volume and longer traffic waiting time were associated with higher number of accident cases. These results show how the situations of Section 7, Shah Alam Road intersection in relation of road accidents. Traffic Light Waiting Time has the highest correlation with a value of 0.65131 while Road Geometry has the lowest with a value of 0.0031. On this basis, the concept of road intersection traffic safety and device timing can be considered in implementation of road intersection safety.