Evaluating the effectiveness of speed bumps: An empirical study in campus

Abstract

The installation of speed bumps on the roads aims to improve traffic safety by forcing vehicle to decelerate. The actual deceleration effectiveness of speed bump is closely related to driving behaviors, installation place, dimension, structure of speed bump, etc. Through video capture in campus and urban roads and coordinate transformation, the spot velocity curves of each vehicle’s traversing the speed bump are obtained. Based on the trajectory data, evaluations on the actual performance of speed bump are carried out. Results show that speed bumps can have certain effect on speed reduction. But the disperse distribution of spot velocities indicates diverse driving behaviors, meaning that speed bumps may not influence all of the vehicles.