The conventional subway line design method cannot address the issues of a large amount of demolition, complex construction, high risk, and high cost in the densely built areas under construction. This article innovates a line design method that combines a special scissors crossover with a curved islandtype misaligned platform, which not only meets the design needs of related disciplines such as architecture, structure, signal, track, train operation, and line but also allows subway lines to avoid dense buildings around the station flexibly. The results indicate that this innovative route design method can reduce demolition, increase construction clearance, reduce open excavation scale, reduce construction difficulty and risk, and reduce engineering investments. It provides technical guidance for areas with dense buildings, as well as demolition and construction difficulties around subway stations. The application to practical engineering cases demonstrates that this innovative line design method can yield economic, technical, and social benefits.

subway  /  design of lines  /  special scissor crossover  /  curved island offset platform  /  digitization  /  building information modeling (BIM)