sentences:  Transport and Telecommunication Institute
  
  Transport and Telecommunication Institute (TTI) (, TSI) (, ИТС) (previously known as RCAII and Riga Aviation University) is the largest university-type accredited non-state technical higher educational and scientific establishment in Riga, the capital of Latvia.It was established in 1999, although it also incorporates the core of a technical and aviation school which dates back to 1919.