Analysing the Effects of Road Humps on Vehicle Speed from Field Measurement and Residents' Perceptions

Abstract

This paper attempts to measure the vehicle speed characteristics at few predetermined points along four residential roads. The selection of points to measure vehicle speed is to understand the changes in vehicle speed as the vehicles approach at and near the road humps. This study also considers the perceptions of the residents on the effects of road humps in reducing vehicle speed. The results show that the vehicle speeds at point immediately preceding and at the road hump decrease significantly but the vehicle speed increases at points immediately after the road humps. The relationship between the residential areas and the perceptions of the residents on both daytime and nighttime vehicle speed was found to be statistically significant. The perceptions of the residents on whether road humps can reduce vehicle speed were also found to be statistically significant when related with the residential areas.