tailieunhanh - Project Management for Construction Chapter 11

Với sự sẵn có của các máy tính mạnh hơn và phần mềm, việc sử dụng các kỹ thuật lập lịch trình tiên tiến đang trở thành dễ hơn và liên quan nhiều hơn để thực hành | 11. Advanced Scheduling Techniques Use of Advanced Scheduling Techniques Construction project scheduling is a topic that has received extensive research over a number of decades. The previous chapter described the fundamental scheduling techniques widely used and supported by numerous commercial scheduling systems. A variety of special techniques have also been developed to address specific circumstances or problems. With the availability of more powerful computers and software the use of advanced scheduling techniques is becoming easier and of greater relevance to practice. In this chapter we survey some of the techniques that can be employed in this regard. These techniques address some important practical problems such as scheduling in the face of uncertain estimates on activity durations integrated planning of scheduling and resource allocation scheduling in unstructured or poorly formulated circumstances. A final section in the chapter describes some possible improvements in the project scheduling process. In Chapter 14 we consider issues of computer based implementation of scheduling procedures particularly in the context of integrating scheduling with other project management procedures. Back to top Scheduling with Uncertain Durations Section described the application of critical path scheduling for the situation in which activity durations are fixed and known. Unfortunately activity durations are estimates of the actual time required and there is liable to be a significant amount of uncertainty associated with the actual durations. During the preliminary planning stages for a project the uncertainty in activity durations is particularly large since the scope and obstacles to the project are still undefined. Activities that are outside of the control of the owner are likely to be more uncertain. For example the time required to gain regulatory approval for projects may vary tremendously. Other external events such as adverse weather trench .

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