| 摘要 |
A system for alerting a person or persons of a public transport hazard. In particular, a system for activation of a warning signal such as a light to detect the presence of a vehicle approaching a hazard zone to alert the person or persons of the approaching vehicle in the hazard zone such that the person or persons when alerted by the visual warning can move out of the hazard zone and out of the path of the public transport vehicle to reduce the potential for injury to the person or persons by the approaching public transport vehicle. t co xxx ' |
