Traffic information service (TIS)

Traffic Information Service (TIS)

The Traffic Information Service (TIS) is a ground-based service that provides real-time information to the flight deck via data link using the S-mode transponder and altitude encoder. The service is designed to improve the safety and efficiency of “see and avoid” flight by informing pilots of nearby traffic with an automatic display. TIS is an essential tool for pilots to monitor and avoid potential conflicts with other aircraft in their vicinity. This service provides an additional layer of situational awareness, allowing pilots to make informed decisions on avoiding potential collisions. The TIS system is an important component of the modern air traffic management system, contributing to the safety and efficiency of air travel.