noun
brake lag
Technical term in automotive or mechanical engineering referring to the delay between brake application and actual deceleration.
空走時間が長いと、制動距離が伸びる。
If the brake lag is long, the braking distance increases.
Compound of 空走 (くうそう, 'idle running') and 時間 (じかん, 'time'), literally 'idle running time'. The exact historical derivation is uncertain; the term is conventionally used in engineering for brake lag.