Research on the Station-front Turn-back Scheme in the Curve Section of Urban Rail Engineering.

The two ends of urban rail transit stations are often curved, the turn-back line controlled by the curve is far from the platform, and the turn-back capacity is low, which cannot meet the requirements of the train organization. In order to solve the problem that the length of the straight section in front of the station is insufficient to set up the turn-back crossover line, a scheme was proposed to set up a single crossover line or a scissors crossover line for turn-back in combination with the line spacing in front of the station. Through the calculation of the single crossover line in front of the station with different line angles, different turnout models and different vehicle formations, combined with the technical operation process of the single track, the turn-back capacity of the single crossover line in front of the station can reach 13~20 pair/h; By calculating scissors crossover line in front of the station with different turnout models, different vehicle formations, and different station line spacing, combined with the technical operation process of the double track, the turn-back of the scissors crossover line in front of the station can achieve a capacity of 19~25 pair/h. For linear motor metro and other medium and low capacity systems using short vehicle formations, the turn-back capacity will be further improved. [ABSTRACT FROM AUTHOR]