Question

Why are there crushed stones alongside rail tracks?

Answer 1

The crushed stones you see alongside railroad tracks are what is known as ballast. Their purpose is to hold the wooden cross ties in place, which in turn hold the rails in place. ... The answer is to start with the bare ground, and then build up a foundation to raise the track high enough so it won't get flooded

Answer 2

the crushed stones are there on purpose they hold the railway tracks on there place and keeps necessary friction between track and ground