There's a railroad in Fairhaven (Callahan Industrial) that cannot be accessed by a mediocre catwalk or road. I figured out a way to get on it and posted it right here! Be sure to pay attention to the captions throughout the video so you can get to the railroad easier!
I chose the Ariel Atom because it has a very quick acceleration time, so you can make that jump!
This on YouTube: https://www.youtube.com/watch?v=CfzctGX_M2g
Need For Speed Videos on YouTube: https://www.youtube.com/playlist?list=PLDS2_Mg-kO2-pxhgxvGkLn58peetdVfV6
YouTube Channel: https://www.youtube.com/NJRinATL
This on Daily Motion: http://www.dailymotion.com/video/x17jmj7_how-to-get-on-the-secret-railroad-need-for-speed-most-wanted-2012_videogames
Need For Speed Videos on Daily Motion: http://www.dailymotion.com/playlist/x2y15v_NJRinATL_need-for-speed/1
Daily Motion Channel: http://www.dailymotion.com/NJRinATL