The disruption of road and rail traffic, so often experienced when a flyover , an underpass or a service is being constructed, can be minimized in those constructions incorporating prefabrication.

• 如果在建造立交桥、地下通道或服务设施采用预制结构,就会把经常发生的公路或铁路交通的中断情况降低到最小程度。