How Subways and Tunnels Work?

Question

Just A lttle curious seeing as how I ride MTA everyday.

How on Earth do the trains go from above to under ground and vice versa. I am a bit confused because on my daily commute..the train is underground..and 2 minutes later it is above street level. Since I can't seem to figure itout myself..does anyone now?

Answer 1

when they need to be on the surface scotty beams them from underground up onto the tracks.

Answer 2

It is done by the use of ramps.  At some point the tunnel ends and the ramp connects the ground level up to the elevated structure.  Once the ramp ends the train is on th elevated structure.

The ramps are gradual so the tracks make a seamless transition from below ground to above the street.

As an example this link is to a photo of a NYC subway train on a ramp heading from the elevated structure down to an underground station (Hunter Point Avenue) in Queens, NY.

http://www.nycsubway.org/perl/show?51535

The tunnel itself starts just below the lower left of the picture.

The trains on the left.are Long Island Railroad trains on storage tracks  (the LIRR and NYC subway do not operate on the same track or tunnels).

Answer 3

If you're talking about Metropolitan Transportation Authority subways,

Maybe, you could try to find that information on:

NYC Subway.

http://nycsubway.org/

http://nycsubway.org/transfer.html

http://thejoekorner.quuxuum.org/

http://www.subwaynut.com/

http://en.wikipedia.org/wiki/New_York_Ci...

Manhattan Bridge is example of subways's elevated track to underground on both side of bridge.

Look for subway track.

http://en.wikipedia.org/wiki/Manhattan_B...