I read on Wikipedia about Lower Tagil (don’t ask how I got to this article):

Due to the fact that the UVA (Uralvagonzavod) is run by qualified directors from Moscow, the equipment in most workshops at the factory has not been replaced since its founding, and capital and cosmetic repairs are carried out only before the arrival of the top executives. Inside the factory can be passed only after showing a special pass, the phone and electronic devices can not be brought with you (to prevent information leakage). However, if you buy a special pass, this restriction will be lifted.

Likewise, for some unknown reason, the roads in Tagil if they are repaired, then in the cold season or in the rain, the same applies to the repair of heatways.