Technical experts from the Spanish rail infrastructure manager Adif have been closely cooperating with Turkish National Railways TCDD for the preparation of the launch of commercial operation on the Ankara-Eskisehir high speed line (the first high speed line to be opened to passengers in Turkey). The cooperation team of Adif that have experience in developing high speed rail infrastructures (AVE) in Spain, includes experts in construction, maintenance and reparation of high speed lines, rail traffic planning and management with the support of technologies as ERTMS, ATP, CAT-LZB and the innovating traffic management system called Da Vinci (intellectual property of Adif).