Abstract：Abstract：Research purposes： In order to solve the problem which Wenzhou South block post does not meet the conditions of setting catch siding, we find some risk conditions by the safety analysis of a train runing between the block post and Wenzhou South Station. We put forward some protection schemes by researching the relevant specifications, block post layout and signal control system.
Research conclusions：(1)Recognizes 8 kinds potentially risk conditions from 20 kinds of conditions, in which the SZ-front straight back side and SZ-front side back straight need to focus on prevention. (2) The on-board equipment can ensure traffic safety in a variety of operating conditions, when the equipments are normal. (3) When the trains running in reverse direction and the automatic block bewteen Wenzhou South Station and Qingtian Station is setted, all the conditions are safe. (4) The security solution is that optimizing traffic organization, moving the block signal of the block post farther or the latter signal displaying red repeatedly. (5)This method can be a reference to a similar traffic safety analysis.
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