Abstract
Digital road maps and large-scale road maps (fundamental geospatial data of road) are drawed up and updated using completion drawings for road construction. To promote a series of measures including i-Construction makes it possible to expect circulation of three-dimensional (3D) data that represent shapes and characteristics of roads in detail in addition to the conventional two-dimensional data such as completion drawings for road construction. Consequently, technological development for reusing 3D data is becoming more important. 3D data are likely to maintain the shapes, elements, and attributes of road features. This makes it is expected that 3D data will be applied to draw up and update of fundamental geospatial data of road as well as road maps such as digital road maps. On the other hand, their implementability have yet to be elucidated fully.
In this study, devised methods for drawing up and updating of road map using 3D data that expected to circulate in the movement such as computer-aided construction, CIM and i-Construction. Additionally, verified the usefulness of the above methods by conducting case studies.
