Compound control system for building cost of light rail projects and control method thereof

The utility model discloses a multiplex control system for the light rail construction cost, which comprises the main circuit for the construction cost control (ICS) and the feed-forward circuit (IRCS). The feed-forward circuit (IRCS) is composed of a risk structure module, an information acquisition and processing module and a pre-warning control module. The risk structure module introduces the WBS -RBS risk decomposing tool kit which consists of a work/risk decomposition texture, a AHP analytic approach, a specialist survey technique and a risk factors classification; the information acquisition and processing module adopts a risk information processing tool kit which consists of a indistinct synthesized measuring method, a risk 3D computational model and a CIM control model of memory; the pre-warning control module adopts a tool kit which comprises a AHP method, a specialist survey technique, a scenario analysis, and a risk management guide module. This utility model improves the reliability of the entire