论文名称：SPAC to Improve Port Performance for Seaports with Very Long One-Way Entrance Channels
论文类型：期刊论文
发表刊物：JOURNAL OF WATERWAY PORT COASTAL AND OCEAN ENGINEERING
收录刊物：SCIE、Scopus
卷号：140
期号：4
ISSN号：0733-950X
关键字：Port service; Ships-passing anchorage; Simulation; Entrance channel
摘要：Very long one-way traffic (VLOWT) entrance channels have become bottlenecks for China's seaports. However, the high costs and complexity of channel expansion make it impractical to expand a typical channel to a two-way traffic channel. Therefore, to improve port performance a ships-passing anchorage (SPAC) is proposed, which provides a temporary mooring for lower-priority ships to wait until other ships traveling in the opposite direction pass beyond the SPAC. To explore the feasibility of building a SPAC and to determine its dimensions, the annual average turnaround time, average waiting time, and average waiting time/average service time ratio were chosen as the performance measures of port service. Then, considering randomness and dynamics in ship operations, a model to simulate ships moving in and out of a harbor through a VLOWT channel with a SPAC was developed, and the port performance was calculated. Finally, the proposed model was applied to a cargo-import port with a VLOWT channel. The results show that a SPAC improves port performance and effectively saves dredging costs, and that the simulation model is an efficient tool to determine proper SPAC design. (C) 2014 American Society of Civil Engineers.
发表时间：2014-07-01