Japan Expressway Speed ​​limit 120km/h section. Normal highway speed is 100km/h Weekdays Downbound

As of December 2023, the maximum speed has been raised in five sections: the Shin-Tomei Expressway (Shizuoka) and the Tohoku Expressway (Iwate), which have continued from the demonstration experiment, as well as the newly targeted Tohoku Expressway (Tokyo metropolitan area), Joban Expressway (Ibaraki), and East Kanto Expressway (Chiba).