Those tracks are called guard rails. Guard rails are placed parallel to regular running rail along areas of restrictive clearance, such as a bridge, trestle, or tunnel. These have the effect of keeping the wheels of rolling stock in alignment in case of derailment. It also helps to minimize damage to the structure and allow easier post-accident cleanup. Similarly you have check rails which are extra tracks on road surface in level crossings and have similar functions as thatcof guard rails.
Apr 18 2016 (3:14PM) Loco Tag: LGD/WAP-7/30418 added by Traveler KD~/621629
A Tribute compilation from me to celebrate the 163 glorious years of Indian Railways, this compilation has quite a few elements missing, but I have done the best I can with what I have. Please do enjoy the one factor that unites us all despite so many barriers - "INDIAN RAILWAYS". Please leave your comments, suggestions, Thank you Sound track used- Walk... more...
in the Park - Walk In The Park by Audionautix is licensed under a Creative Commons Attribution license (click here Artist: click here