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Trains Directions
Trains Directions  
Trains Directions
Trains Directions  
QUESTION: Dear Frank

We always see Trains - Up and Down moving either in North - South
OR East - West Direction.

Example : Four Tracks

1. Train 1 moving Towards North On Track 1
2. Train 2 moving Towards South On Track 2
3. Train 3 moving Towards North On Track 3
4. Train 4 moving Towards South on Track 4

Question
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As attached in the figure viz Trains Direction Movement 1, Will this type of Trains Direction Movements also applicable i.e. Railways running in real scenarios in specific countries?

i.e. Some Trains Moving in North-South, South-North Direction but at the Same time, Some Trains are also moving in East - West, West-East Direction.


Cases
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1. Train 1 Moving from North to South , Train 2 Moving from East to West.

2. Train 1 Moving from South to North , Train 2 Moving from East to West.

3. Train 1 Moving from North to South, Train 2 Moving from West to East.

4. Train 1 Moving from South to North, Train 2 Moving from West to East.

5. Train 1 Moving from East to West, Train 2 Moving from North to South.

6. Train 1 Moving from East to West, Train 2 Moving from South to North.

7. Train 1 Moving from West to East, Train 2 moving from North to South.

8. Train 1 Moving from West to East, Train 2 moving from South to North.

Either Train 1 or Train 2 has to halt in all cases so that the other Train moves in the specific direction to avoid collision.

Awaiting your reply,

Thanks & Regards,
Prashant S Akerkar

ANSWER: Hi!  Thank you for your question.  I'm sorry I don't really understand your questions.  Train directions on multi track railways differ from country to country.  In North America, except for the Chicago & North Western railroad, trains take the Right hand side tracks.  In Britain they follow the Left Hand side tracks, similar to cars on a British  roadway.  Most European countries probably follow the American example, whereas those countries that were former  colonies of Britain would generally follow the British example.  Collisions would occur if a following train speeded up to crash into the back of a proceeding train.  Signaling would prevent this speed up, preventing collisions.  On single  track railroads signaling devices prevent more than one train to be in a single section.  One train waits at a passing point until the other train reaches it at the passing point. On crossings where tracks North-South cross those running East-West, Interlocking Towers (American terminology# (or Signal Boxes[British terminology])control the crossings by signals, halting a secondary train while the primary train has crossed.  Which route is considered primary and which one is considered secondary depends on a variety of reasons #history [which railroad was built first], ownership, preponderance of traffic, etc,  I don't know if my attempt answers your question? Frank.

---------- FOLLOW-UP ----------

Road Junction
Road Junction  

Trains Directions
Trains Directions  
QUESTION: Dear Frank

Thank you.

I was exploring whether this type of railway networks are running in real scenarios in different countries.

To Summarize,

Trains running simultaneously in North-South,South-North Direction as well as Trains running in East-West, West-East Direction similar to Road Junction in attached image.

i.e. will there be also Rail Road Junctions in Rail Networks similar to Road Junctions ?

Awaiting your reply,

Thanks & Regards,
Prashant S Akerkar

Answer
Hi!  Again.  Yes such railroad junctions are possible and have been fairly common, especially outside major railroad stations.  All the crossings are protected by what are  known as Interlocking Towers which control access to the tracks that cross each other to prevent collisions.  Such plants are very complicated and manned by well trained signalmen and computers.  Drivers of trains are held responsible to follow signals that protect such crossings.  Newer railroads attempt to avoid these massive complicated layouts by attempting to cross at different levels, or flyovers.  These are preferred even they are more expensive to construct as they do not stop opposing traffic on the lines that cross.  As higher train speeds grow approaching 200mph such flyovers are becoming more important, so railroads attempt to eliminate flat crossings by rebuilding.
Here are images of some crossings:
http://www.francisfrith.com/newcastle-upon-tyne/photos/newcastle-central-station
http://www.google.com/imgres?q=newcastle+central+station&hl=en&tbo=d&biw=991&bih
Ihope this helps.  Frank.

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I CAN NOT DIAGNOSE equipment problems or ESTIMATE DOLLAR VALUES of your equipment, by email. I have been active in model railroading for forty years. I can answer, or find answers, to questions on most aspects of model trains, railroad equipment or buildings. I have a good knowledge of prototype railroads. I have been employed by five model railroad equipment manufacturers/suppliers and worked for a prototype railroad. I have served, twice, as the president of a local model railroad club. I have been employed as a Reference Librarian, at a university, for the last fifteen years and am used to tracking down resources for patrons.

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