How does Indian railway work?

Related questions

1. What is a controlled signal?
2. What do train lights mean?
3. Do trains have traffic lights?
4. What is a subsidiary signal?
5. What's a red signal on a train?
6. What is a Signalling failure?
7. Why do trains have signals?
8. How do train crossing signals work?
9. What activates a train signal?
10. What is calling on signal?

Tags

1. #track
2. #particular
3. #previous
4. #interlocking
5. #means
6. #trains
7. #until
8. #turns
9. #railway
10. #simply
11. #block
12. #signal
13. #train
14. #allowed
15. #signals
16. #reached
17. #single
18. #passes