Abstract
Utilization of three-dimensional (3D) point group data collected for mobile mapping systems (MMS) has received widespread attention recently. Particularly in road spaces, people use such data from road planning and maintenance as basic information after obtaining point group data of roads, road structures, and nearby trees and vegetation, which often have a complex configuration. However, Japan's super-aging society needs advanced facilities for smooth travel over sidewalk spaces, which must be flat and even to allow the continuous travel of pedestrians. Moreover, evaluating sidewalk space circumstances properly is a necessary aspect of barrier-free construction. Nevertheless, because of obstruction by roadside trees, fences, and other features, 3D point group data that are commonly collected by in-car MMS have not shown sidewalk space conditions. For this study, the authors collected 3D point group data of sidewalk spaces using a hand-driven MMS while walking in the area. We evaluated sidewalk surface irregularities to assess the usefulness of data provided by the system.
