The research was purposed to know the optimal number of operators and equipment during company peak time at shift 3 in Regulated Agent of PT. XYZ at Soekarno Hatta Airport. To determine the optimal number of operators, the researcher applied the arrivals simulation from 00:30 to 02:30, assuming that the earliest departure is at 05:00. The simulation result for the current condition is with the average number of goods arrived is 21,924 kg, and the number of goods served is only 12,241. After that, the researcher applied the calculation of capacity planning to get the optimal number of lines and operators, and the result was with the same amount of goods arrived able to be served 19,752 kg. Based on the capability and time process in Soekarno Hatta, the calculation of capacity planning and the proposed layout was made for the new Regulated Agent project of Kualanamu.