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Thread: Aerial view of a terminus point for the Chicago transit authority

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    Default Aerial view of a terminus point for the Chicago transit authority

    Check this out... I was panning around looking for a rooftop to steal when I came across this!!! It's located here...
    1819 West Juneway Terrace, Chicago, IL



    If I did my calcs and math correctly, those tighter radius work out to be 7.5 in N scale!
    Check out my BLOG here. EDIT... don't bother... Photobucket kidnapped all my pictures.

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    A prototype for everything...
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    - Featuring motive power by Burlington Northern, Union Pacific, Canadian Pacific, Montana Rail Link and Amtrak in Spokane and Eastern Washington in the mid-1990's.
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    Quote Originally Posted by TrainNut K36 View Post
    If I did my calcs and math correctly, those tighter radius work out to be 7.5 in N scale!
    rapid transit does much tighter radii than the freight railroads. The cars are generally smaller....

    Paul

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    The upper right part of it would make a really sweet layout all by itself!
    - - There's a fine line between genius and insanity. I like to use that line as a jump rope. ... (unknown)

    Come visit my Layout Build Thread - http://www.nscale.net/forums/showthr...l-Build-Thread

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    What are the grades on that???
    There's a double main going under the loop and road in about 8 or 9 car lengths... and the other (forked) pair going over the road in about half that distance again.
    I'm guessing more than 2%.
    Bryan
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    that really is a thing of beauty.

    steep grades- yes, but every axle is powered.
    tight turns - many of the routes follow 19th century street car routes, so the vehicles still need the capability.

    Here is Boston's Blue Line maint facility. the tightest curve works out to 9.2" in N scale.
    The Blue line cars are 57" long.
    Attached Images Attached Images

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    Here a skytrain yard, with about 7" radius curves in N scale. The system is entirely automated so I'd guess the yard work and switching and such is controlled from a yard control tower.
    http://goo.gl/maps/EgYXm

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    For scale, each CTA L car is 48 feet long. No matter the vintage.
    They travel in mated pairs so you actually have eight axles pulling you around.


    Here's a look at the Lake Street and Wabash Avenue turn on the NE corner of the Loop.

    The Sun-Times and formerly Daily News building was destroyed by Trump and his tacky building replaced it. the photo looks north on the tracks.
    Here's a shot from a 1977 crash on the same corner. It prompted the girder in the above picture be installed to prevent another rollover. The accident was caused by one train bumping another as it sat on the curve. You are looking SW
    .

    Your best site for research is http://www.chicago-l.org/index.html
    There are several chunks of L track in the Google SketchUp library. for a closer look of the track layouts.
    Use what you know about the world to model…
    Learn from modeling what you don't know about the real world.



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    Here's another great resource for subways and urban mass transit
    http://www.nycsubway.org/wiki/United_States

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    After doing some digging for CTA info…
    Minimum Radius - 90 feet or in N scale 6.75 inches
    Possible Grade - 8%

    I'd put more stock in the radius than the grade. But from experience the train can travel vertically 15 to 30 feet in as little as one block which is 1/8th of a mile.

    Here's a shot and discussion on Trainz
    http://forums.auran.com/trainz/showt...581#post869581

    I've put the grade and radius question tho the CMTG Yahoo group to see if someone has better details.
    Use what you know about the world to model…
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