Ships' Congestion and Efficiency of Port Facilities, etc

Abstract

The exact application of the theory of queues to ships' congestion at port is, if not impossible, very difficult, and may be too complicated to use. More practical way of approach may be an approximate expansion of that theory in limited accuracy.Wellknown result of Fig. 1 may be approximately corrected by the correction factors C1 & C2 given in Fig. 2 & 3. The effect of control of arrival time interval at port and service time at quay can be discussed by these factors. In sec. 5, 6 & 7, actual data of several Japanese ports are analised.So called the “Monte Carlo” Method can be benefitially applied to this problem. In sec. 8 examples of application are shown and used to cheque the accuracy of the above approximate method.