Chicago Metra commuter rail — real-time train arrivals, vehicle tracking, service alerts, and schedule info for all 11 Metra lines serving the Chicago metropolitan area. Use when the user asks about Metra trains, Chicago commuter rail, or specific Metra lines and stations.

芝加哥密尔沃基通勤铁路——实时列车到站信息、车辆追踪、服务通知及适用于芝加哥都会区全部11条通勤铁路线路的时刻表信息。当用户查询密尔沃基列车、芝加哥通勤铁路或特定线路和车站时使用。