the Royal Film Commission, Shoman libraries and Darat al Funun, and the Royal Cultural Center at Sports City. In addition to large-scale events and institutional planning, scholars point to tactical urbanism as a key element of the city's cultural fabric. Transportation Airports The main airport serving Amman is Queen Alia International Airport, situated about south of Amman. Much smaller is Amman Civil Airport, a one-terminal airport that serves primarily domestic and nearby international routes and the army. Queen Alia International Airport is the major international airport in Jordan and the hub for Royal Jordanian, the flag carrier. Its expansion was recently done and modified, including the decommissioning of the old terminals and the commissioning of new terminals costing $700M, to handle over 16 million passengers annually. It is now considered a state-of-the-art airport and was named 'the best airport in the Middle East' for 2014 and 2015 and 'the best improvement in the Middle East' for 2014 by Airport Service Quality Survey, the world's leading airport passenger satisfaction benchmark program. Roads Amman has an extensive road network. Eight roundabout "circles", which formerly marked neighborhoods, are used as landmarks. The road network includes many bridges and tunnels due to the mountainous nature of the terrain. A leading example is the Abdoun Bridge, which spans Wadi Abdoun and connects the 4th Circle to Abdoun Circle. It is considered one of Amman's many landmarks and is the first curved suspended bridge to be built in the country. Successive waves of refugees to the city has led to the rapid construction of new neighborhoods, but Amman's capacity for new or widened roads remains limited despite the influx. This has resulted in increasing traffic jams, particularly during summer when there are large numbers of tourists and Jordanian expatriates visiting. In 2015, a ring road encompassing the city was constructed, which aims to connect the northern and southern parts of the city in order for traffic to be diverted outside Amman and to improve the environmental conditions in the city. The Amman Bus and the Amman Bus Rapid Transit public transportation systems currently serve the city. Construction work on the BRT system started in 2010, but was halted soon after amid feasibility concerns. Resuming in 2015, the first route of the BRT system was inaugurated in 2021, and the second in 2022. Another BRT route connecting Amman with Zarqa is also under construction and is expected