noun
following distance; distance between vehicles
Refers to the space maintained between moving vehicles, especially for safety. Often used in driving instructions and traffic regulations.
高速道路では十分な車間距離をとってください。
Please maintain a sufficient following distance on the expressway.
車間距離が短いと追突
A short following distance can cause rear-end collisions.
Compound of 車 (car) + 間 (interval) + 距離 (distance). A straightforward modern technical term.