Barbara McNay wrote in a message to Blake Bowers:
 >  MR> explosion or fire wasnt enough to collaspe a wall, the smoke would
 >  MR> fill the tunnel iun less then 5 min, with the tunnel being over 3
 >  MR> miles
 >  MR> long, and trafic always coming in it would be a mess, there have been
 >  MR> small fires in there before that have caused massive accidents. So a
 >  MR> larger fire could cause even more caose
 > They could also explain just what kind of ventilation
 > equipment is in
 > use.  Heck, they might even offer you a tour for your
 > class.  In fact,
 > you would most likely be amazed just how a tunnel is
 > actually put
 > together, and all the behind the scenes things that
 > goes on there!
 BM> This brings to mind something I saw up in that area (don't
 BM> know what state, but I'd guess it was in New Jersey,
 BM> Delaware, or Maryland) about 30 years ago:  On the approach
 BM> to a tunnel, there were signs saying that vehicles with, or
 BM> pulling trailers with, gas bottles were not to use the
 BM> tunnel, but were instead to use an open-air route.  The
 BM> driver of the car I was in failed to acknowledge these
 BM> signs, and we were pulled over and requested to take that
 BM> other route.  Might some tunnels have less than optimum
 BM> attributes?
The tunnels and bridges between New Jersey and New York have those 
requirements.
The reason is that a propane tank will explode with much more force that a 
car filled with gasoline.
And when (if) the tank does explode, the damage will be much more than a car.
In fact, a propane cylinder is more in line with a bomb than a car is.
Also, in New Jersey, at least, it is illegal to carry a full propane cylinder 
in the trunk of your car.
Alan
Team OS/2,
Fidonet 1:107/101, ibmNET 40:4371/101, OS2NET 80:135/15
internet: alanrackmill@mindspring.com
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