The Study Of Train’s Travelling Speed Coefficient On Double Tracked Section With Automatic Blocking System

Travelling speed coefficient is the ratio between train’s pure running time and residence time in section.This paper make a concrete analysis of the stop time of the train in the middle station based on the discussion of pure running time and residence time,probability theory is used to calculate the extra stop time caused by over-taking,and how to promote the speed coefficient of train travel is discussed.The specific research work includes the following aspects:(1) By understanding the research status in China and abroad, the influence of train travelling speed coefficient such as off stop additional time, tracking interval time, running time and other factors are described, and the calculated travel speed coefficient method based on the in-depth discussion.(2) Analysis of train operation in double line automatic block sectio, the residence time of the train in the section is expounded, the influencing factors of the residence time of train in the intermediate station are summarized, and makes an in-depth study on the stop time caused by over-taking.(3) On the basis of the existing calculation method of travel velocity coefficient, remove factors that are determined by the train operation chart,According to the discussion on running time, the method of calculating dwell time is put forward by passing probability and the intermediate station operation time and the time to go through the combination of some parts of the discussion, and finally through the actual data for research, summed up the impact of various factors on the travel speed coefficient.(4) Proceed from the train in section accounted for the departure time, travel speed coefficient analysis of extreme departure time conditions, contrast coefficient average travel speed of train departure time, given certain restrictions to reduce the probability and shorten the residence time to improve travel speed coefficient.(5) Analysis a variety of trains running situation, Regard the intermediate station departure time when the train running under a separate case as a random variable, the calculation method of extra stop time caused by over-taking is presented under actual case,and conduct an example test.