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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.

Thanks & Regards,
Prashant S Akerkar

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

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 ?

Thanks & Regards,
Prashant S Akerkar

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
Ihope this helps.  Frank.
Questioner's Rating
 Rating(1-10) Knowledgeability = 10 Clarity of Response = 10 Politeness = 10 Comment Dear Frank Thank you. Thanks & Regards, Prashant S Akerkar