Abstract：Abstract：Research purposes： Regional railway designed speed of 100 ~ 160 km/h，is a high - speed， high - density，pasenger dedicated railway line of transit type. With the development of urbanization in our country， the demand for railway construction in the city is bigger and bigger，the standards of tlie running regional railways are not uniform. Based on the analysis of the technical differences between the regional railway，intercity railway and urban rail transit，combined witli the selection of vehicles，this paper studies the standard of distance between centers of tracks， and provides reference for the design and specification of tlie regional railway. Research conclusions ：( 1 ) The minimum distance between centers of tracks in the straight line of regional type A vehicle is 3.8 m， the minimum distance between centers of tracks in the straight line of regional type D vehicle and regional CRH vehicle is 4. 0 m. (2) When the super elevation of the outer line is set to be equal to or less than that of the inner line，the widening of distance between centers of tracks may not be considered in the section of 400 m curve radius and above. (3) The standard of distance between tracks of centers is slightly lower than the current code for design of intercity railway and code for design of railway line，is slightly larger than the subway specification，is quite similar to that of Japan and France， and is lower than German standards. (4) The research results could provide references for regional railway line standard and code compilation.
冯慧淼. 市域铁路线间距标准研究[J]. 铁道工程学报, 2017, 34(6): 72-76.
FENG Hui – miao. Research on the Distance between Centers of Tracks Standard on Regional Railway. Journal of Railway Engineering Society, 2017, 34(6): 72-76.
2017, Vol. 34 
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