It features a built-in laser, strobe light, audible message, and electroluminescent lamp working together to lead building occupants towards emergency exits.

它的内置激光，频闪灯光，声响信息，和电致发光灯共同工作将建筑物居住者引向紧急出口。

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"The normal protocol for a medical emergency is for the conductor to administer first aid, but it is likely he would have had to put a message out to ask for help, " the spokesman said.

BBC: Baby born on packed commuter train at West Malling

We could lose a lot of people who won't even get to the emergency room if we don't do it, so I do want you to know that I hope the message will go across the country to the places I've visited and the other places that we know this is going to be a problem, and we're going to deal with it.

CNN: Transcript: Clinton speaks on patients' bill of rights