There are many restrictive factors,

There are many restrictive factors, and the schedule management is not in place in the construction process. Management organization can not guarantee the implementation of the schedule target, overstaffed, heavy relationship light ability phenomenon is serious, leading to poor execution ability. Project members are only concerned about their own benefits, regardless of whether the project objectives are successfully achieved. The plan is out of touch with the actual work, and the level of the schedule is low, which can not reflect the construction situation truthfully and even lose the guiding role. There is a certain difference between the construction sequence in the schedule and the actual work.