準じゅん備び管かん制せい

noun

preliminary control of lights

Technical term used in traffic engineering or railway signaling for the preparatory phase of light control before a main signal change.

• 交こう差さ点てんでは、準じゅん備び管かん制せいによって信しん号ごうの切きり替かえがスムーズに行おこなわれる。

  At intersections, preliminary control of lights ensures smooth signal changes.