Concrete Vehicle Scheduling Based on Immune Genetic Algorithm

Figure 4

Splitting of concrete distribution process. T0: start time of a delivery task performed by a truck. ZC: start loading task of truck. FC: complete loading task and start delivery task. DD: arrive at construction site and wait for unloading. KJ: start unloading task. KF: complete unloading task and start trip toward depot. T1: arrive at depot and complete a delivery task.