The police check digital passports for citizens to travel around the city, and require passports.
The same situation arose on April 15 on the roads of the capital. Because of the traffic police’s outfits checking special passes for moving around the city, numerous traffic jams formed.
Note that the lines in the subway and traffic congestion were not the only problems of the townspeople. The site of the Moscow City Hall, where you can apply for a pass, works intermittently.