PCM-Lecture30-Planning

PCM-Lecture30-Planning - Project and Construction...

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Unformatted text preview: Project and Construction Management Project and Construction Management Lecture Lecture #30 #30 Planning Luis Prieto-Portar 2009 Planning the Construction Process. The planning of a project is application of common sense to the logical analysis of each step of the process. Before the timeline and list of activities is prepared, these questions need to be asked: 1) Long-lead purchases . Some items, such as elevators, special structures, etc require to be purchased and manufactured a long time before they are installed in the project. These items must be resolved very early in the process. 2) Utility interruptions . Will a major electrical, water, sewer or gas line be interrupted for the neighborhood in order to connect to the project? If so, the utility company must prepare for this major event, by knowing the date it must take place, how long will the interruption occur, etc. 3) Temporary utilities . What provisions are made for temporary electrical, water and sewer for the construction? Who supplies these utilities? 4) Labor . Is the project union or open shop? Can labor be mixed? 5) Storage and work areas . Is there enough space to work on the project? Is a remote site needed, say for parking, storage, etc? 6) Traffic requirements . Will large cranes be allowed to work from the street? Will special operations require temporary closure of the street? 7) Subcontractors . How are other contractors planning to use the common space? Also, how are these subcontractors affected in their schedules by others? 8) Environmental controls . What environmental restrictions are in place? 9) Special regulations . Are there special restrictions on the times construction can take place? 10) Special construction equipment . Will very large crawler cranes be required? Will special roads be necessary to move very large equipment? 11) Time . Will ordinary crews complete the project on time, or will special crews be required to attain a special early completion? Conventional versus phased (fast-track) construction. Coordinating a phased (fast-track) construction project. The S-Curve is one of several ways to show the percent completion of a project within the calculated time. Using a Gantt bar chart to revise a schedule. In this instance, the originally scheduled completion after 10 months has been reduced to completion in 6 months. Planning Project Life Cycles. Civil engineering projects, and military operations, are each unique. They also have a time cycle of their own. Projects can be divided into pre-funding and post-funding phases. The pre-funding consists primarily of planning. The post-funding consists primarily of execution (construction). Wideman in 1983 suggested that it is convenient to divide a project into four phases: Conceive (C) , Develop (D), Execute (E) and Finish (F), which are simplified by their initials C, D, E and F. The Conceive phase identifies the needs . Alternative solutions to the needs are analyzed via block diagrams and preliminary drawings. These are followed with preliminary via block diagrams and preliminary drawings....
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PCM-Lecture30-Planning - Project and Construction...

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