noun
headway; frequency
Technical term used in railway and transportation contexts for the time interval between consecutive trains or vehicles.
ラッシュ時は運転時隔が2分に短縮される。
During rush hour, the headway is shortened to two minutes.
この路線の運転時隔は昼間は10分です。
The frequency on this line is every 10 minutes during the daytime.
Compound of 運転 (operation, driving) and 時隔 (time interval). The exact historical derivation is uncertain, but the term is used in modern railway and transportation engineering.