Abstract
A lot of infrastructures were built in the advanced economic growth period, they are used for about 40 years and need repair. Therefore, the establishment of the reasonable maintenance management technique is demanded. A technique for establishing the maintenance database of road tunnels is proposed by using GIS (Graphic Information System). Based on the database and numerical simulations of time-depended behaviour of a tunnel, the tunnel performance and maintenance cost are quantitatively evaluated. In addition, the AM (Asset Management) technique for road tunnels is also proposed and applied to a real case for verifying its practicability.