 MARS (ticket reservation system)

, which stands for "Multi Access (originally Magnetic-electronic Automatic) seat Reservation System", is a train ticket reservation system used by the railway companies of former Japanese National Railways, currently Japan Railways Group (JR Group) and travel agencies in Japan, developed jointly by Hitachi and the Railway Information Systems Co., Ltd (JR Systems), a JR Group company jointly owned by the seven members of the group.The host of the system is located in Kokubunji, Tokyo and managed by JR Systems.