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A study on the probability distribution of the distance between anchored vessels

ZHU Jun 1,SHI Guang ping 2,SUN Hu shan 2,YANG Hui ming 2 (1.Navigation College ,DMU, Dalian 116026,China; 2.Tianjin Harbour Superintendency Administration, Tianjin,300456,China)  
Observations on the positions of anchored vessels have been taken at the anchorage of the harbour of Tianjin, Dalian, Qingdao and the Bay of Rongcheng by using radar, the radar data processor and other equipments at the VTS centers. The data of distance between anchored vessels in the anchorages have been measured manually. The goodness of fit test have been done for the observed frequencies and the expected freqencies of gamma distribution. The conclusion is that the gamma distrabution can be used to discribe the probability distribution of the distance between anchored vessels in an anchorage. The study can be a scientific basis for anchorage planning or anchorage traffic management.
【CateGory Index】: U652.14
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