There is a device for issuing queue coupons. But when they started recording, scheduled for one day for the next six months, they spent some time determining how to organize the work, although they probably had to prepare for the influx of people. Most of the visitors are elderly people with poor hearing and eyesight. At this time, only one person recorded and distributed the entire queue to specialists, about 30 people. The problems are most likely in the wide range and difference of the issues being solved and the characteristics of the contingent - elderly rural people.
I have applied here several times, the staff is qualified and friendly. There is a terminal with coupons to the right specialist, there was practically no queue (maybe I was just lucky)