Currently, an alarm system exists in some women’s compartments

A city-based electrical engineer has come up with an interesting device that could save many lives on the suburban network. The device, armed with a set of blue lights that glow with an audio alarm (optional), will warn commuters when the train is about to leave. The device has a set of blue lights that glow with an audio alarm (optional) and can be installed above train doors to warn commuters getting in and out, when the train is about to leave.