IMPORT CONTAINER INTER-ARRIVAL TIME AND HANDLING CHARACTERISTIC IN MARINE CONTAINER TERMINAL WITH EXTERNAL YARD–A CASE STUDY OF JAKARTA INTERNATIONAL CONTAINER TERMINAL, INDONESIA

Container traffic demand has been increased rapidly in recent years. It creates high occupancy in the container terminals across the country in Indonesia. To keep up the level of terminal service at the high demand in a modest way of capacity expansion, the terminal operator uses the external yard as one of the fastest and cheapest solutions with some limitations. The supporting yard is located outside of the terminal area and connected by the public road which is also used by non-container traffic. To find the optimum operation of terminal – external yards system, the model will address several optimum issues such as location, capacity, and tariff of yards. The performance of a Terminal which operates the external yard needs to be analyzed to measure the benefit of the policy. Analysis of terminal container performance could be done by a deterministic or stochastic condition which was determined by the nature data. Proper analysis approach was needed to be observed based on real data characteristic. This paper aims to analyze the container inter-arrival time and handling characteristic of marine import container terminal. Container data record of the terminal operator was referred and analyzed. Statistical theory of chi-square test was used to analyze data distribution characteristic. Based on the chi-square criteria, fitting data distribution was conducted for container inter-arrival time, service time, and dwell time data. The distribution data analysis result shown that the data was distributed among several distribution functions. It indicates that the performance analysis of the terminal should be done in stochastic condition approach. YOR and traffic on the connecting road have an important role in connection analysis between terminal and external yard. There is a problem to construct the equation, which correlated the terminal operation and the road due to different time cycle equilibrium. If the equation formulated in hourly, it cannot catch up the container movement characteristics in the terminal. Meanwhile, if the equation expressed in daily, it cannot catch up the road traffic characteristics. Based on the handling process review, It was indicated several choices for a container to pick a server. The container handling process at the terminal operating the external yard is a hard decision-making process. These problems could be addressed using Discrete Event Simulation model based on queueing theory. The simulation can accommodate the need of choosing server algorithm and different cycle time in the terminal and connecting road. The changes of external yards location, capacity and tariff can also be handled by the simulation when the alternatives policies will be done.