0引言近年来,唐山港的货物吞吐量保持连续的高速增长,尤其在2014年突破5亿t大关,在全球港口的货物吞吐量排名中位列第五。其中,京唐港区的货物吞吐量突破2亿t,进出港区的商船已增加到15 084艘次,导致主航道及其附近的船舶通航密度越来越大。为减少船舶会遇产生的紧迫局面,提高船舶进出港口的效率,同时为港口生产再上新台阶进一步挖潜增效,有必要对京唐港区的进出港航线进行详细解读 0 Introduction In recent years, the throughput of Tangshan Port maintained a continuous and rapid growth, especially in the year of 500 million t mark, ranking the fifth in the world’s cargo throughput. Among them, the throughput of Jingtang Port exceeded 200 million tons, and the number of merchant vessels entering and leaving the port area has increased to 15 084 times, resulting in an increasing density of navigation in the main waterway and its vicinity. In order to reduce the urgency of meeting ships and improve the efficiency of ships entering and leaving ports, it is necessary to make a detailed interpretation of the inbound and outbound routes of Jingtang Port Area