Abstract
Ministry of Land, Infrastructure, Transport and Tourism in Japan is promoting the intelligent construction called “i-Construction” for productivity improvement, quality assurance, and cost reduction. Three-dimensional landform data are generated by laser profiler, mobile mapping system, terrestrial laser scanner, and camera on unmanned aerial vehicle. However, there are no standards for representing and drawing three-dimensional landform data.
In this study, the representation and modeling methods of three-dimensional landform data based on point cloud data were proposed. This study evaluated the density of point cloud data and its display for representing point cloud data based on various measurement hardwares. The density was evaluated for asbuilt management of road earthmoving. It should be 100 points/m2 for as-built management. And, points of attention were considered for combining and using point cloud data.
