Multiple Traffic Calming Measures on an Urban Residential Road Network in Asaka City, Japan - Driving Speed and Residents' Perception

Abstract

This paper examines the effectiveness of multiple traffic calming measures on an urban residential road network in Asaka City, Japan. The study combines analysis of driving speed data with resident survey data. The public acceptance of infrastructure projects is essential for achieving goals sustainably. More than 50% of residents surveyed believed the neighborhood became more livable with more peace of mind after the installation of speed humps. Speed surveys were conducted both before and after the construction of 7 speed humps which included smooth pedestrian crossing humps and intersection humps. Drivers became more cautious at all locations with the presence of humps. Results of the residents’ opinion survey were validated with the speed survey data of the 85th percentile speed and speed profiles. The findings suggest that area-wide traffic calming measures can be effective in reducing driving speed and improving the perception of safety and quality of life for residents in urban residential areas.