As one of the traditional transport,ferry is of high risk and difficult to manage.

Research purposes: According to the files from the process of pre-study,design,building and operation for train ferry on Qiongzhou Straits,this paper summarizes the thinking of system design for train ferry at that time and explores the regular patterns of it from system viewpoint.

The degree of difficulty ferry is managed as transport industry, safe risk of tradition height,is big,thorough analysis the main body of this paper is passed to safe risk management theory,fundamental train of t.

Based on the investigation of Jiangyin railway ferries and related data analysis as well as the linear multiple regression analysis,this paper presents the function relationship between various dodging-measures and ferry s cycle.

Research purposes: The relevant technique about railway ferry in early years is not adopt to the modern development and the need of the traffic in our country.

In terms of applied mathematical theory,the probability is analyzed that railway ferries are obstructed by ships when passing through the Yangtze River,so is the time to lengthen railway ferry s cycle at an average time.