The method takes station-train adjacency list as its basic data structure and rebuilds the rail-net with the restriction of train routes, to make the got-route data validity and rationality.

• 以车站-车次邻接表为基本数据结构，将铁路路网图改进为列车约束下的列车可达图，保证车站生成个性化径路的合理性和有效性；