The UPR-PUPR-ATI Professional Development Program is a contract between the University of Puerto Rico, Mayaguez and Rio Piedras Campus, the Polytechnic University and ATI. The program was established in 2004 to develop research projects in order to improve public transportation in the San Juan Metropolitan Area and the Project of ATI, stands for "Alternativa de Transporte Integrado", which includes the Tren Urbano, AMA, and the públicos.