The highways which were builded in 1990s have damage and aging in different degrees, with significantly reducing of level of seviece,so the hignway and its facilities can not meet the needs of rapid economic development. At present, more and more hignways in the whole nation have entered the stage of the major repair. In the major repair of the highway, safety operation of the road has been affected because of congestion and frequent accidents in construction section. Therefore it is necessary and i...