https://i.ytimg.com/vi/sROnLfkPgzA/hqdefault.jpg
Blender Tutorial: http://www.blenderguru.com/videos/create-an-underground-subway-scene-part-1-of-2
In this tutorial you will discover:
How to quickly model a tunnel and train tracks
How to use the array and curve modifier
How to use dupliframes to quickly create copies of lamps
source
Link to this post!