Basically the idea is that the authorities will monitor the movements of everyone in the city using their mobile phones. This data will identify redundant or needful traffic arrangements, as well as the provisioning of interchanges on the underground system and corresponding availability of bus services.

Of course it will mean that Tsar Putin will know where his citizens are 24 hours a day seven days a week, but that is nothing to worry about is it?  The system will be augmented by GPS data in particularly dense and labyrinthine areas, such as 'old Moscow'.

Head of The Center for Traffic Management  Vadim Yuriev said: "In 2015 we plan to establish a system of analysis of traffic flows based around GSM-tracks in the Moscow metropolitan area. [The system] will collect, process and analyse data on the movement of mobile subscribers in Moscow and the Moscow suburbs."

There is no evidence of 'opt out' so far reported, but the authorities claim that the anonymity of mobile-phone users will be preserved and everyone knows that Tsar Putin never lies.
To be fair Moscow is one of the world's most traffic-clogged capitals, currently home to a population of more than 11.5 million people.

Of course the 'big three' mobile providers in Moscow already cooperate extensively with Moscow authorities in providing access to the movements of its mobile subscribers.