Therefore, JR Tokai and JR West, having frequently confronted each other, have started cooperating more strongly: For example, the coverage of the 'Express reservation' has been expanded to the Sanyo Shinkansen line, and the N700 series train-cars, the next generation train-cars aiming at a high performance of 300-km/h operations and at passenger comfort exceeding that of the 700 series train-cars, have been developed jointly.
そのため、「エクスプレス予約」の山陽新幹線への拡大、300km/hの高速性能と700系車両を上回る居住性の両立を目指した次世代車両であるN700系車両の共同開発など、それまで対立の多かったJR東海とJR西日本両社は連携を強化する体制に転換しつつある。