The starting and stopping additional time, train diagram cycle of single-track railway, and train tracking interval time of double-track railway corresponding to different train traction weight and turnout type are calculated under certain running conditions. On this basis, the station carrying capacity of heavy haul single-track and double-track railway under corresponding conditions is obtained. According to analyzing the impacts of different turnout types on station carrying capacity, the conclusions are drawn as follows. For heavy haul single-track railway station, 9# turnout is recommended when train traction weight is less than 10000 t; 12# turnout is recommended when train traction weight is equal to or greater than 10000 t; 18# turnout is recommended only when train traction weight is up to 20000 t and meanwhile the station site is large enough. For heavy haul double-track railway station, 12# turnout is recommended when train traction weight is less than 20000 t; 18# turnout is recommended when train traction weight is up to 20000 t and meanwhile the station site is large enough.
