Intermodal journey planner
（重定向自IJP）
An Intermodal journey planner (IJP), or Trip Planner is computer system which can provide a traveller with an itinerary for an intermodal passenger transport journey. The system can provide timetable, routing and other travel information. A single journey may use a sequence of several modes of transport, meaning that the system must know about public transport services (bus, train, aeroplane, tram, metro) and about transportation networks (roads, footpaths, cycle routes) for private transportation (automobile, walking, bicycle).