The use of intelligent computer models and processes such as Building Information Modeling (BIM) and Civil Integrated Management (CIM) is transforming the delivery of transportation programs. (CIM is a term now being promoted by the Federal Highway Administration under the Every Day Counts initiative.) Owners, designers, and contractors are using these processes to design, build, and simulate projects virtually before executing them in reality. The use of virtual modeling increases communication and coordination among project stakeholders by providing an easily accessible vision of the entire project. 3D and 4D models (where time is the 4th dimension) reduce risks, errors, and inefficiencies that are common to more traditional forms of project management.
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