michael147
Member
- Joined
- Apr 20, 2012
- Member Type
- Interested in Language
- Native Language
- Chinese
- Home Country
- China
- Current Location
- China
[FONT=宋体]The float was carrying several wounded veterans when it was struck by a free train. In addition to those killed, 16 people were injured. The National Transportation Safety Board’s Mark Rosekind says the folk remained on the tracks, even though warning signals were working.
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"At20 seconds out, and that is actually an established federal minimum, the bells and lights on the mast activated.”
He says the train sounded a horn nine seconds before the crash and engaged the emergency brake five seconds before. Investigators say they are now trying to determine whether the float’s driver could hear the horn and whether the signal timing and synchronization were operating correctly.
What does it mean by "At 20 seconds out"?
Your answer would be appreciated.
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"At20 seconds out, and that is actually an established federal minimum, the bells and lights on the mast activated.”
He says the train sounded a horn nine seconds before the crash and engaged the emergency brake five seconds before. Investigators say they are now trying to determine whether the float’s driver could hear the horn and whether the signal timing and synchronization were operating correctly.
What does it mean by "At 20 seconds out"?
Your answer would be appreciated.
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