Optimization of Critical Chain Multi-project Schedule Based on Delay Loss

In order to solve the problems of schedule conflict, resource competition and cost overruns, a new management model of critical chain multi-project schedule based on delay loss of activity is proposed. First, a priority rule based on minimum activity delay loss and the calculation formula is provided. Then, with the goal of the shortest project duration and the lowest cost, a schedule management model of critical chain multi-project is constructed, and genetic algorithm is designed to identify the critical chain of the multi-project. Finally, a case study is provided to verify the shortest duration, lowest cost and maximum resource utilization of the multi-project schedule using this method.