2 yuan for half an hour, 2 yuan for more than half an hour and half an hour for less than half an hour. The underground parking lot of Tianjin Railway Station University Town subway station adopts the charging method of parking by time. The trial charging standard is 2 yuan for half an hour per vehicle and 2 yuan for half an hour. Less than half an hour, according to the right half an hour. Tianjin, also known as Jingu and Jinmen, is a provincial-level administrative region, municipality directly under the Central Government, national central city and mega-city of People's Republic of China (PRC), and is the economic center of the Bohai Rim region determined by the State Council.