双代号网络图中虚工作时间参数计算的探讨

A Probe into the calcaulation of the time parameter of dummy activity in the activity-on-arrow network

通过分析研究对把虚工作视同实工作进行其时间参数计算的观点提出质疑,得出计算双代号网络图各实工作时间参数时不要进行虚工作时间参数计算的结论,并指出何时进行虚工作时间参数计算会对其相关实工作时间参数产生影响。

This paper deeply analyze, and doubts about the view that dummy activity is eousiderd as normal activity to conduct the calculation of time parameter. The paper reaches the conclusion that the time parameters of dummy activity should not be included when calculating the time parameters of all the normal activities in activity-on-arrow network. It also points out the time when the calculation of the time parameter of dummy activity is conducted, during which the time parameter of the related activities will be affected.