[EAS] WEA used in NYC bombings

[Mike McCarthy]

I think that's the whole premise of the automated system which can react
within milli-seconds compared to human reaction which as you correctly
point out takes much longer to assess and react.

On the mass transit side alone, if they emergency stop or lock-out the
trains before the waves hit, they avoid derailment. Countless lives can be
saved and injuries avoided or minimized by simply keeping the trains on
their tracks and avoiding collisions. Mind you, it won't stop above grade
cars from tipping over during the event. But at least their travel will be
halted. And if they do topple, chances are likely they would have derailed
and crashed regardless. So while the outcome is still unfavorable, it is
the least unfavorable of the scenarios.

More over where there is a third rail for power, terminating power
automatically will make rescues and car evacuations safer.

Same thing with gas main valves shutting off. Even if they loose power,
battery backed controls at least know continue with the command to close.

Same thing with freezing or directing elevators to the nearest floor and
opening the doors to permit travelers not be trapped in what are
exceedingly hazardous locations to effect rescue. Especially express
elevators.

True, it won't necessarily save humans in prone locations or circumstances
which can't be automatically controlled. But the fewer injured or killed
in preventable conditions, it's sure worth exploring options.

MM

On Sat, September 24, 2016 4:07 am, John Willkie wrote:

> I think it's an open question as to whether such short-term notifications
> will help much, absent "the big one," which could come any hour, day,
> week, month, year, decade or century.
>
> Anyone who has ever been at a vantage point when even a moderate