This is the 9341st most frequent Russian word.
ттк
The Russian abbreviation "ттк" can mean "Транспортная Телекоммуникационная Компания" (Transport Telecommunications Company) or "Технические Условия" (Technical Specifications), depending on context.
ТТК is used here as an acronym referring to transport infrastructure.
ТТК обозначает технические транспортные коридоры.
TTK stands for technical transport corridors.
ТТК refers to the Third Transport Ring road, a major highway in Moscow.
На ТТК Москвы всегда много машин.
There are always many cars on the TTK of Moscow.
ТТК is used here as a document term indicating Technical Terms and Conditions.