Template-Type: ReDIF-Paper 1.0 Author-Name: van Asperen, E. Author-Name-Last: van Asperen Author-Name-First: Eelco Author-Name: Dekker, R. Author-Name-Last: Dekker Author-Name-First: Rommert Author-Person: pde16 Author-Name: Polman, M. Author-Name-Last: Polman Author-Name-First: Mark Author-Name: de Swaan Arons, H. Author-Name-Last: de Swaan Arons Author-Name: Waltman, L. Author-Name-Last: Waltman Author-Name-First: Ludo Title: Arrival Processes for Vessels in a Port Simulation Abstract: Ports provide jetty facilities for ships to load and unload their cargo. Jetty capacity is costly and therefore limited, causing delays for arriving ships. However, ship delays are also costly, so terminal operators attempt to min imize their number and duration. Here, simulation has proved to be a very suitable tool. However, in port simulation models, the impact of the arrival process of ships on the model outcomes tends to be underestimated. This report considers three arrival processes: stock-controlled, equidistant, and uncontrolled. We assess how their deployment in a port simulation model, based on data from a real case study, affects the efficiency of the loading and unloading process, making a case for careful modeling of arrival processes in port simulations. Uncontrolled, which is an assumed arrival process property in many client-oriented simulations, actually performs worst in terms of both ship delays and required storage capacity. Stock-controlled arrivals perform best with regard to large vessel delays and storage capacity. Additional control of the arrival process through the application of a priority scheme in processing ships further impacts efficiency in all three cases. Creation-Date: 2003-10-17 File-URL: https://repub.eur.nl/pub/973/ERS-2003-067%20arrival%20processes%20for%20vessels.pdf File-Format: application/pdf Series: RePEc:ems:eureri Number: ERS-2003-067-LIS Classification-JEL: L92, M, M11, R4 Keywords: arrival processes, discrete-event simulation, port logistics, port simulation Handle: RePEc:ems:eureri:973