क्यों लगायी जाती है Guard Rails? What is Derailment Guard?

Today we will study about Guard Rails & Derailment gaurds. We will also study about it's necessity at various locations. Kindly watch it completely.
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Reference Manuals used:-
#IRPWM 2020
#IRWM 2000
#IRBM 1998
#IRTMM 2019
#IRSOD(BG) 2022
#G&SR 2020
#GCC 2022
#USFDManual
#Foundation & Substructure Code
#IRS GE-1 2016
#Track structure
#railwayexam
#LDCE(ADEN/JE)exam
#LGS(ADEN) exam
#CBT_railway
#guardrail
#derailment
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[@ChandanKumarNirala-yr5ug]

Thanks sir 🙏

[@tamannabegum2251]

Very good video thanks

[@kalar5897]

Sir, I want video explaination for passengers amenities in indian railway as per latest