How does Metro train work?

Related questions

1. Is there a metro in Budapest?
2. Which company made Delhi Metro?
3. Which is the oldest underground line?
4. Is Budapest safe to travel to?
5. How do I get from Budapest airport to city Centre?
6. Which government started the Delhi Metro?
7. Is it safe to travel in Budapest?
8. Does the Budapest metro run all night?
9. What is the oldest metro system?
10. Which country invented Metro train?

Tags

1. #railway
2. #speaker
3. #placed
4. #consists
5. #encoded
6. #metro
7. #until
8. #vehicle
9. #powered
10. #recorder
11. #moves
12. #microcontroller
13. #stations
14. #transmitters
15. #project
16. #track
17. #attached
18. #receiver
19. #voice
20. #beneath
21. #train
22. #whole
23. #encounters
24. #system