Open AccessStudy on the Optimal Safety Distance for Turn-back Line of Regional Railway
Author(s) -
Huaizhong Shi,
Hui Zhang,
Shuang Li,
Jiaqian Chen,
Yi Sun
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/688/4/044050
Subject(s) - transport engineering , scale (ratio) , line (geometry) , railway line , investment (military) , engineering , mathematics , geometry , physics , quantum mechanics , politics , law , political science
At the same time of large-scale development of trunk railway and urban rail transit, Regional Railway will gradually enter the stage of large-scale construction. Post-station turn-back is one of the most frequently used forms for regional railways, the length of turn-back line and safety distance directly affects the scale of station and construction investment. However, the provision for safety distance of turn-back line is relatively broad in the current design specifications, and there is margin for further refinement. Based on the safety braking model, starting from the fundamental reasons for setting the safety distance, this paper studies the calculation method of safety distance and turn-back capability by analyzing the factors affecting the safety distance. Combining with the actual operation requirements, considering both train operation safety and turn-back capacity, the optimal safety distance model of turn-back line is constructed by selecting the post-station turn-back. The actual station is analyzed and the research results have positive significance.