UK coach operator Stagecoach are investing in a high-technology decal sign system for the backs of its vehicles that warns drivers when they are following too closely.
The Tailguardian system, made by UK-based Motillism, presents very high definition information in a way that can only be perceived at a preset distance, calibrated to reveal itself at the boundary of the safe following distance at predetermined speeds.
Tailguardian say the images will appear to a driver who leaves less than two seconds’ following distance between her cars and a bus so equipped.