A recent online discussion in the UK brought renewed attention to a road sign many drivers still misunderstand: the white circle with a bold black diagonal stripe. Although it appears on the official driving theory test, many motorists admit forgetting its meaning once they’re on the road. One user even claimed that “99% of drivers” don’t truly recognize it, sparking a wave of comments that revealed how easily driving knowledge fades with time.
The sign marks the start of the national speed limit, but its simplicity often leads to confusion. In a Reddit thread, users joked that it meant things like “national drifting zone” or “go as fast as you want,” highlighting how often the sign is misread. Others pointed out that some drivers treat it as a signal to speed up or overtake immediately, creating unnecessary risk.
