Core Viewpoint - The official operation of the third runway at Shenzhen Airport marks the beginning of the "three-runway era," enhancing the airport's capacity and operational efficiency [1][3]. Group 1: Shenzhen Airport Developments - The third runway is 3,600 meters long and 45 meters wide, classified as a 4F level, accommodating various large aircraft [3]. - The new runway will work in conjunction with the existing two runways, optimizing operational modes to handle different flight volumes, allowing for a total of eight operational modes [3]. - The airport's annual passenger traffic is projected to exceed 60 million in 2024 and 65 million in 2025, with cargo throughput expected to surpass 2 million tons for the first time [3]. Group 2: Greater Bay Area Airport Expansion - Other airports in the Greater Bay Area are also undergoing significant expansions, including the opening of the T3 terminal and fifth runway at Baiyun International Airport, which can accommodate 120 million passengers annually [4]. - The expansion of Huizhou Airport will increase parking spaces from 8 to 14, while Hong Kong International Airport's new runway system will enhance its annual passenger capacity to 120 million and cargo capacity to 10 million tons [5]. - The development plan for the Guangdong-Hong Kong-Macao Greater Bay Area aims to establish a world-class airport cluster, enhancing the international competitiveness of airports in Guangzhou and Shenzhen [5].