The Russians used the Lugansk railway to supply ammunition to the front.

Lugansk partisans burned down a railway control junction box near Svatovo.
As the head of the Luhansk OVA Serhiy Gaidai noted , the delivery of ammunition for the occupiers by rail is now difficult.
“This night, “good people” destroyed the “locker” of the railway control near the occupied Svatovo. Unknown patriots burned the junction box that controls traffic lights, crossings, and the very power of the railway also depends on it. Previously, the orcs used the Lugansk railway to transport ammunition to front,” he said.
Gaidai noted that the invaders were “unlucky”.
“Warehouses take off into the air, the railway is now in sleep mode … Thanks to our people for their resistance,” he added.
As UNIAN wrote, on July 12, in Russian-occupied Lugansk, the enemy lost another ammunition depot.
The next day, explosions were heard again in Luhansk. Another depot with ammunition of the Russian occupation army was blown up in the city.
Military expert Oleg Zhdanov predicts that the Luhansk region will be liberated during a military counter-offensive operation in eastern Ukraine.
(C)UNIAN 2022

This seems like one more reason among many, about why the russians failed again! The rail in that picture seems held together in one of the most haphazard of ways! lol
In a serious construction of railroad tracks, the rails are bound by strips of steel with bolts at least an inch (25.4 mm) thick, AND supported by wooden railroad ties around 1 foot (304.8 mm) long, 1 1/2 feet (457.2 mm) wide. There should NEVER be a gap between those ties larger than three feet (914.4 mm) wide. Any deviation away from these measurements, (let alone binding track with C-clamps! Horrifying!) is much more likely to result in the rail car slipping off the rail and crashing down into the ground.
My Dad works with the local railroad here, driving the railroad track maintenance crews, so he should know from personal experience. I can’t wait to to show him how “skilled” russian railroad engineers are! lol 😂