Core Viewpoint - The establishment of the Shanghai Third Airport in Nantong marks a significant step in enhancing Shanghai's status as a global aviation hub, aiming to surpass New York and London in passenger traffic and airport capacity [4][7][11]. Group 1: Importance of the Third Airport - Shanghai, as China's largest economy, requires a third airport to accommodate its growing air traffic, with current passenger throughput at 124 million across two airports [9][11]. - The new airport is part of a broader strategy to strengthen Shanghai's position as a comprehensive international aviation hub, alongside the expansion of Pudong Airport [12][14]. - The development of the third airport is crucial not only for Shanghai but also for the entire Yangtze River Delta region, which is economically vibrant and populous [15][20]. Group 2: Location Decision - The choice of Nantong over other cities like Suzhou for the new airport is due to Nantong's ample airspace resources and its strategic position connecting Shanghai with northern Jiangsu [26][27]. - Nantong's proximity to Shanghai (approximately 100 kilometers from both Pudong and Hongqiao airports) allows it to absorb overflow traffic without competing directly with existing airports [27][30]. - Suzhou's inability to secure an airport site is attributed to its limited airspace and the existing airport cluster around it, making Nantong a more viable option [30][31]. Group 3: Regional Airport Development - The Yangtze River Delta is rapidly expanding its airport infrastructure, with the total number of airports expected to reach 32, enhancing connectivity and capacity in the region [38][42]. - The region already boasts a high density of airports, with eight out of 41 major airports in China located here, indicating a strong focus on aviation development [42][44]. - The planning and development of airports in the region are influenced by various factors, including airspace resources, market demand, and regional competition [44].