New railway lines with Shinkansen specifications, sometimes called 'Super-limited express method' (-based lines), indicate lines constructed in the following way, and train-cars on regular railway lines run on them: The structures, such as railway beds and tunnels, are constructed in Shinkansen specifications, and 1.067 mm gauge rails are laid.
新幹線鉄道規格新線とは、路盤・トンネルなどの構造物を新幹線規格で建設し、軌間1,067mmのレールを敷設して在来線の車両を走らせるもので、「スーパー特急方式」とも呼ばれる。