🚀 go-pugleaf

Tim Kynerd wrote:

< snipped earley comments >

> 
> Hi John,
> 
> Another problem is, of course, that adding another set of doors reduces
> seating capacity.
> 
> Overcrowding will always be a problem on any rapid transit system from time
> to time, even if there is plenty of rolling stock and frequent service in
> the peak.  It's even the case that on any given day, some trains are going
> to be quite crowded, while others will have relatively few people.  As long
> as that's true, the only solution to the problem of people clustering around
> the doors is to provide more doors.  (Note that this is a much narrower
> problem than overcrowding in general, even though crowding on the cars is a
> contributing factor to this problem.)

Tim

I under stand that more doors = less crowding and faster loading and
unloading that will = shorter dwell times. Their is one problem, the
base WMATA car design like the bart car has a flaw that will not
easily make it possible to add more door without making the cars
heavier. The flaw is the car body it an interracial part of the
structure the car. Punching more holes in the car sides for door
would require beefing up the under fram to compensate loss of body
structural integrity. You got to remember that these car were built
like cabin of an passenger jet airplane, and out of aluminium to
boot. Frankly I think the more traditional way of building of
passenger railroad car would have been a better choice. Stainless
steel car body on a an undercarriage bearing all of the loading and
buffering.

-- 
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NT Geek, MCP
Transit Geek
http://www.chesapeake.net/~cambronj/wmata/	
Model Railroader HO N                                   John R Cambron
http://www.chesapeake.net/~cambronj/sunbelt/        North Beach MD USA
Railroad Geek                                  cambronj@chesapeake.net
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