【奋进的中国 我们的“十四五”】我国四大世界级机场群建设初具规模

Core Points - The development of transportation infrastructure in China has significantly improved, with increased accessibility to railways, highways, and airports [1] - Over the past five years, the civil aviation sector has invested more than 100 billion yuan annually in infrastructure [1] - Major airport clusters such as Beijing-Tianjin-Hebei, Yangtze River Delta, Guangdong-Hong Kong-Macau, and Chengdu-Chongqing have begun to take shape [1] - The number of domestic flight routes has reached 4,513, with over 260 cities now accessible by air [1]