Why do locomotives face backwards?

Related questions

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4. Why is a mile a mile?
5. How long can a train be legally?
6. What is a UK Mile?
7. Which is longer 1 km or 1 mile?
8. Why are there 5 280 feet in a mile?
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Tags

1. #commerce
2. #dragged
3. #seeming
4. #safety
5. #difference
6. #being
7. #viewer
8. #train
9. #efficiency
10. #track
11. #backwards
12. #makes
13. #making
14. #inefficiently
15. #2news
16. #direction
17. #locomotives
18. #tracks
19. #locomotive