Core Viewpoint - The successful construction and operation of the Jiaozhou Bay Bridge have significantly contributed to the economic and social development of Qingdao and the surrounding areas, transforming the region's transportation landscape and enhancing connectivity [1][4]. Group 1: Construction and Technical Achievements - The Jiaozhou Bay Bridge, completed in four years, was initially doubted by international experts regarding its quality and timeline, but it became a landmark project in Qingdao's urban development [2][3]. - The bridge involved 45 technical challenges, including anti-freezing and corrosion resistance, and set multiple industry records, filling gaps in both national and global bridge construction standards [3]. - It has received numerous awards, including one national-level award and 20 provincial-level awards, showcasing its engineering excellence and innovation [3]. Group 2: Economic Impact and Connectivity - The bridge has established a comprehensive and efficient transportation system in the Qingdao metropolitan area, facilitating seamless connections among the three coasts and four cities [4]. - Implementation of point-to-point toll discounts and differentiated charging policies has significantly reduced travel costs for over 26 million vehicles, enhancing logistics efficiency and promoting regional economic growth [4]. Group 3: Maintenance and Technological Integration - The bridge has maintained a high performance index (PQI) of over 95, with no major repairs in 14 years, demonstrating effective long-term maintenance strategies [5][6]. - Advanced technologies, including drone inspections and real-time monitoring systems, have been integrated into the bridge's maintenance, improving detection efficiency and overall safety [6]. Group 4: Cultural and Social Significance - The Jiaozhou Bay Bridge has become a cultural icon, featured in various films and recognized for its aesthetic and engineering significance, attracting tourists and enhancing the city's image [7]. - It symbolizes the transformation from a "super project" to an economic engine, reflecting the aspirations and achievements of the region over the past 14 years [7].