A traffic control system (TCS) is provided comprising at least one traffic control unit, TCU, (9) equipped with a proximity enabled traffic user equipment, PETUE, (1) and adapted to control traffic of mobile entities wherein the proximity enabled traffic user equipment, PETUE, (1) of said traffic control unit, TCU, (9) is configured to transmit traffic information by sending at least one discovery message, DM, directly via a user equipment to user equipment link to at least one other proximity enabled traffic user equipment, PETUE, of a mobile entity, wherein said discovery message, DM, includes a proximity service, ProSe, application identifier comprising a string of traffic labels, TLs, representing hierarchical traffic information levels.
