in July 2015 with financial help from the Asian Development Bank and the station was finally opened to the public on 16 October 2017. The new State University station meets modern standards and is equipped with new technologies. Additionally, the Delisi-Vazha-Pshavela tunnel was also opened. In 2019, the complete rehabilitation of power lines and ventilation systems in the metro began. With the replacement of the power cable, 32 new European-standard fans will be installed. The Asian Development Bank has allocated $15 million for this project. The government of Tbilisi, through partial funding from the European Bank for Reconstruction and Development, spent more than 48 million Euros on purchasing 44, new, modern metro cars or 10 train sets in February 2023 from Metrowagonmash, bringing the system's outdated rolling stock up to date. Moreover, the depot and the connecting tunnel will be rehabilitated as a part of the project to support the new trains. This is the first major rolling stock update for the network since it began operation more than 50 years ago. Network Current lines Timeline Operation , the system consists of two lines, serving 23 stations, operating on of the route and of the track. Of the 23 stations, 21 stations are below ground and two are surface level. Of the subterranean stations, 17 are deep level and 4 are shallows. The former comprises 6 pylon stations, 5 columns and 6 single vaults (built to the Leningrad Technology). The shallow stations consist of three pillar trepans and one single vault (Kharkiv Technology). Due to Tbilisi's uneven landscape, the Metro, particularly the Akhmeteli-Varketili line, has one surface-level section. An estimated total of 105.6 million people used the Metro annually as of 2005, though the actual figure by 2012 was closer to 94 million. Carrying them are a fleet of 170 Soviet-built rail cars, consisting of the 81–717/714 and Еzh3 models, which have been modernised since 2000 (using the Czech blueprint of the 81-71M) and operate from two depots. Station platforms are approximately 102 meters in length, and built to accommodate five-carriage trains, though four-car trains operate on both lines of the subway system. Trains run from a little before 6:00 am (exact times vary depending on the station) until midnight, with intervals ranging between minutes at peak times and 12 minutes later in the night. Train speeds are 60–80 kilometres per hour, while the average trip speed is slightly over