It is required for construction to have execution of high quality and high precision, however, Today's shortage of skilled workers and aging workingforce is causing a deterioration of quality. Therefore developing new technology for construction sites has become more important than ever before. And we need to promote the spread the new technology each construction sites. To eliminate these problems, Ministry of Construction has been engrossed in new project which study about development of

more »

... nalized technology since 1990. Our development forms a part of the project in order to automation and rationalization on earthworks. In this report, we describe the results of joint research with Public Works Research Institute. 13th ISARC