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A New Method for Calculating Work Time Parameters

YU De-ming

Open publisher page 1 citations

Abstract

In order to prepare and optimize construction schedule plan,the calculation of earliest start time,latest start time,earliest finish time,latest finish time,total float and free float of the project′s works is very important.In this paper,a new method for calculating work time parameters is put forward.Under this method,the various work time parameters can be obtained by establishing and solving the linear programming models whose decision variables are work finish times.The modeling thought of the new method is very clear,drawing network diagrams is not needed,and the linear programming models can be easily solved using the general office software EXCEL. The simulation calculations show that the work time parameters obtained using this new method and those obtained using the network scheduling technique are altogether in agreement.

About this research paper

What this paper is about

In order to prepare and optimize construction schedule plan,the calculation of earliest start time,latest start time,earliest finish time,latest finish time,total float and free float of the project′s works is very important.In this paper,a new method for calculating work time parameters is put forward.Under this method,the various work time parameters can be obtained by establishing and solving the linear programming models whose decision variables are work finish times.The modeling thought of the new method is very clear,drawing network diagrams is not needed,and the linear programming models can be easily solved using the general office software EXCEL. The simulation calculations show that the work time parameters obtained using this new method and those obtained using the network scheduling technique are altogether in agreement.

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Available abstract

In order to prepare and optimize construction schedule plan,the calculation of earliest start time,latest start time,earliest finish time,latest finish time,total float and free float of the project′s works is very important.In this paper,a new method for calculating work time parameters is put forward.Under this method,the various work time parameters can be obtained by establishing and solving the linear programming models whose decision variables are work finish times.The modeling thought of the new method is very clear,drawing network diagrams is not needed,and the linear programming models can be easily solved using the general office software EXCEL. The simulation calculations show that the work time parameters obtained using this new method and those obtained using the network scheduling technique are altogether in agreement.

Key concepts: Computer science, Schedule, Work (physics), Float (project management), Scheduling (production processes), Industrial engineering, Linear programming, Software

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