为研究不同车站折返线配线型式，满足折返能力和折返功能，减少车站规模和造价，以南昌地铁3号线银三角北站为背景，分析和研究站前折返和站后折返的折返间隔和适用条件，得出不同条件下推荐的折返配线型式。对于线路的永久起、终点站，从节能投资、减少车站规模和提高折返能力的角度，优先采用站前折返的方式；对于线路的临时起、终点站，需要结合远期延伸线路长度、车站型式、车场选址和全线配线综合确定；对于中间站，一般设置单渡线起临时折返功能，或者与停车线一起设置贯通式双停车折返线。

In order to study the configuration of return lines in different stations to meet the return capacity and function, and reduce the scale and cost of the station, the return interval and applicable conditions of the return ahead of and behind the station are analyzed by taking Yinsanjiao North Station on Nanchang Metro Line No. 3 for example. And then the recommended wiring types under different conditions are obtained. For the permanent starting and terminal stations of the line, the return ahead of station is recommended considering cost and station scale reduction and return capacity improvement; for the temporary starting and terminal stations of the line, the longterm extension line length, station type, yard location and the whole line wiring should be considered; and for the intermediate stations, the function of single crossover is generally set for temporary return, or double parking return line together with the parking line is set.