Exploratory Data Analysis of Lateral Clearance Between Vehicles at Signalized Intersection with Weak Lane Discipline

Mixed traffic and weak lane-based driving habits of drivers in developing countries like India pose a significant challenge to a precise analysis of traffic condition and behavior. For weak lane disciplined mixed traffic conditions observed in India, the lateral driving behavior parameters are pivotal in assessing and analyzing the traffic proper effective monitoring, management and opera-tions. This study focused on exploring the lateral safety spacing maintained by vehicles observed at signalized intersections. The results show that the lateral clearance maintained by different vehicle classes while interacting with the vehicle travelling abreast to the subject vehicle is statistically different. The lateral clearance maintained by vehicle classes on the left and right sides is also significantly different. However, similar lateral clearance values can be considered for modelling for similar vehicle class combinations, but different values need to be considered for interactions between different vehicle classes.