The so-called mini-Shinkansen is originally 'an improvement of regular train lines and the through-operation of trains on Shinkansen lines through the introduction of the standard gauge,' and is not covered by the Shinkansen described in this article.
また、いわゆるミニ新幹線はあくまでも「在来線の路線改良及び標準軌化による新幹線路線への直通化」であり、本稿における新幹線には該当しない。