There are seven docking doors for the shipping zone of the SISA DC at Gioia Tauro. These doors can be sometimes used also for the receiving zone in seasonal peak situations; the size Ly of the shipping zone is obtained by using (5.12) and results in 30.20m. Since the warehouse is U-shaped, the size Lx coincides with that of the receiving zone and results in about 11.66m. Consequently, the shipping zone measures about 352m2, that is, 50.30m2 for each docking door.