Generated by GPT-5-mini| 700 Series Shinkansen | |
|---|---|
| Name | 700 Series Shinkansen |
| Service | 1999–2013 (Tōkaidō/Sanyō), limited use thereafter |
| Manufacturer | Hitachi, Ltd., Kawasaki Heavy Industries, Nippon Sharyo |
| Yearconstruction | 1997–2006 |
| Yearservice | 1999 |
| Numberbuilt | 256 vehicles (32 sets) |
| Formation | 16 cars per trainset (some 8-car sets) |
| Capacity | 1,323 (16-car) |
| Operator | Central Japan Railway Company, West Japan Railway Company |
| Carbody | aluminium alloy |
| Maxspeed | 285 km/h (design) |
| Gauge | 1,067 mm (track gauge) |
700 Series Shinkansen The 700 Series Shinkansen is a Japanese high-speed train introduced by Central Japan Railway Company and West Japan Railway Company for the Tōkaidō Shinkansen and Sanyō Shinkansen services. Developed in the late 1990s by Hitachi, Ltd., Kawasaki Heavy Industries, and Nippon Sharyo, it succeeded earlier types such as the 100 Series Shinkansen and 300 Series Shinkansen while preceding the N700 Series Shinkansen. The design emphasized aerodynamic improvements, crashworthiness, and compatibility with evolving signalling systems like ATC and Cab signaling.
Development was driven by requirements from Central Japan Railway Company and West Japan Railway Company to increase speed and reduce maintenance compared with the 0 Series Shinkansen, 100 Series Shinkansen, and 300 Series Shinkansen. The design team included engineers from Japan Railway Technical Research Institute and industrial designers influenced by projects at Hitachi, Ltd. and Kawasaki Heavy Industries. Aerodynamic studies referenced research from University of Tokyo laboratories and wind tunnel tests conducted by Nippon Sharyo facilities. Safety enhancements took into account lessons from incidents involving Shinkansen derailments and international standards used by TGV programs in France and Eurostar operations in United Kingdom. The rounded nose profile and double-deck considerations led to a 16-car configuration compatible with platform lengths on the Tōkaidō Shinkansen and Sanyō Shinkansen. Electrification compatibility was planned for the 25 kV AC systems used on long-distance Japanese high-speed lines and integrated with signalling upgrades managed by Ministry of Land, Infrastructure, Transport and Tourism policies.
The first 700 Series sets entered service in 1999 on Nozomi and Hikari services, operated by Central Japan Railway Company and West Japan Railway Company. Deployment coincided with timetable revisions for the Tōkaidō Shinkansen and Sanyō Shinkansen, and the type worked alongside 700T test train prototypes, N300 testsets, and earlier fleets including 200 Series Shinkansen and 500 Series Shinkansen. During the 2002 FIFA World Cup and the 2005 World Expo logistics increased utilization. With the introduction of the N700 Series Shinkansen from 2007, 700 Series sets were gradually cascaded to secondary services and redeployed on Kodama runs. Retirement from regular Nozomi duties accelerated after timetable changes by JR Central and JR West, with final mainline withdrawals completed by the early 2010s; several sets were retained for training by Railway Technical Research Institute and for seasonal services during events at Tokyo Dome and Kobe Port Festival.
The train utilized aluminium alloy car bodies built by Nippon Sharyo, Kawasaki Heavy Industries Rolling Stock Company, and Hitachi, Ltd. manufacturing plants. Traction was provided by electric multiple unit technology using three-phase AC motors and variable-frequency inverters similar to systems developed for Shinkansen rolling stock and influenced by inverter advances from Siemens and Mitsubishi Electric. The bogies were derived from proven designs used in 300 Series Shinkansen programs, fitted with disc brakes and regenerative braking compatible with Overhead catenary systems. Safety and signalling integration included Automatic Train Control and Automatic Train Protection features, enabling operations at up to 285 km/h under appropriate conditions. Passenger amenities featured pressure-sealed cabins influenced by JR East refurbishment standards and onboard environmental controls designed to meet Japanese Industrial Standards.
Main formations comprised 16-car sets (designated X series by JR Central and JR West), with some 8-car formations used for shorter-duty patterns and depot transfers. Variants included prototype testsets and refurbished sets adapted for Kodama services. Manufacturing batches reflected different production blocks built by Hitachi, Kawasaki, and Nippon Sharyo, each identifiable by minor interior and bogie differences. Numbering and depot allocations followed regional practices at Shin-Osaka Depot, Nagoya Depot, and Hakata Depot.
Exterior liveries blended silver bodies with colored bands, reflecting corporate identity elements from Central Japan Railway Company and West Japan Railway Company branding, and echoed earlier schemes on 100 Series Shinkansen and 185 Series (train) EMUs. Special promotional liveries were applied for events organized by Japan Railways Group subsidiaries and for campaigns tied to Kyoto and Osaka tourism boards. Interior configurations offered standard-class seating and Green Car equivalents, with seating arrangements influenced by designs on Tobu Railway and Keisei Electric Railway express units; onboard facilities included accessible toilets meeting standards set by Ministry of Land, Infrastructure, Transport and Tourism guidelines and passenger information systems interoperable with JR Central network communications.
Several 700 Series sets were involved in minor incidents consistent with high-speed operations, including level crossing-related collisions on feeder lines and debris-related equipment damage during severe weather events associated with Typhoon Jebi and other storms monitored by Japan Meteorological Agency. Investigations were conducted by Japan Transport Safety Board and prompted modifications to maintenance regimes and inspection protocols coordinated with Railway Technical Research Institute recommendations. No catastrophic passenger fatalities attributable to design failure were recorded on mainline services; incidents typically resulted in service disruption, repairs by JR West and JR Central engineering teams, and subsequent implementation of preventive measures.