The Tōkaidō Shinkansen (Japanese: 東海道新幹線,とうかいどうしんかんせん) is a high speed railway line of Central Japan Railway Company (JR Central) in Japan. It is also the first high speed railway line in the world, and marked the start of Shinkansen technology.
There are totally three types of trains serving this route. When Tōkaidō Shinkansen starts operations in 1972, only Hikari and Kodama are serving this line. Among the two trains types, Kodama trains stop at all stations, while Hikari trains skip some of the stations to make the travel shorter. In early 1990s, Nozomi was added to the service. Nozomi trains skip even more station than Hikari, which is now the fastest service on this route.
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