In terms of daily arrival data, statistic and analyze ship flows laws. among which, daily arriving ship according with Normal Distribution, the average headway according with Erlang Distribution approximately.

• 根据到船资料,统计分析了船舶流到船规律,其中日到船近似服从正态分布,日到船平均船头间距近似服从爱而朗分布,为航道通过能力的计算提供理论基础。