https://i.ytimg.com/vi/cht5pVH3-ZA/hqdefault.jpg
Blenderguru.com for the tut.
sound effect at freesound.org
If you want to animate it select first the camera and SHIFT-select the curve and hit crl+p from the pop up menu choose follow path that all.
Happy blendering 
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One response to “underground railways from blenderguru”
Hi saw your comment and thought you would like my Blender 3d playlist! Have a look and let me know.
Arduinotronic https://www.youtube.com/playlist?list=PLnAU2FhiYxcSLXtq7EgKMUnSH0r6hg4ye