1998 年 6 巻 p. 135-140
Main subject of this theme is how the construction and maintenance of expressway are proceeded at present against the environmental effects, based on the Environmental Management System (EMS).In relation to the work, We are attempting to develop the study of construction and maintenance, and work out problems of design and construction work of expressway.The main contents of the subject are introductions of appropriate EMS usage in the field of expressway technical examination and risk assessment of environmental impacts, including future planning and figure of measures against environmental effects.