Highway & Bridge Project, a large-scale and complicated project program, needs shorter and shorter time limit for a program, however, in the construction, a great deal of indefinite factors abound, especially the resource constrained.

• 路桥工程为大型的、复杂的工程项目，对工期的要求越来越短，然而在施工过程中存在着大量的不确定因素，资源受限的问题尤为突出。