This paper presents two effective systems for large span cantilever roof, stabilizer and louver system and damping device for cable. At part 1, it was clarified that the stabilizer and louver on the cantilever roof enable to decrease the wind pressure coefficient through wind tunnel tests. The experimental parameters were pitch, angle and distance to grandstand. At part 2, it was clarified that the damping device reduces the vibration of cable to last it through the actual measurement test.
