广东“双子星”，要建一条新高铁？

Core Points - The Shenzhen Development and Reform Commission has officially initiated the pre-research bidding for the planning and construction of the Guangzhou-Shenzhen Second High-Speed Railway southern extension line, which is expected to enhance connectivity between Hong Kong and the mainland [1] - The Guangzhou-Shenzhen Second High-Speed Railway is part of the infrastructure connectivity plan approved by the National Development and Reform Commission in May 2020, aiming to create a new high-speed rail corridor from Shenzhen Airport to Guangzhou North Station [1][2] - The southern extension line is crucial for supporting the development of the Qianhai Cooperation Zone and promoting rail transit connectivity within the Guangdong-Hong Kong-Macao Greater Bay Area [1][5] Summary by Sections Project Overview - The Guangzhou-Shenzhen Second High-Speed Railway will connect Shenzhen Airport, Dongguan, Baiyun Airport, and Guangzhou North Station, linking to the Guangqing Yongzhou High-Speed Railway [1] - The specific route and station layout for the southern extension have not yet been defined [1] Historical Context - The project was prioritized as early as 2018 to address the growing demand for high-speed rail travel between the core urban areas of Guangzhou and Shenzhen [2] - The 2021 planning document confirmed the inclusion of the second high-speed rail corridor in national planning [5] Current Developments - The Guangdong Provincial Government has accelerated preliminary work on the second high-speed railway project, indicating progress towards its realization [5] - Existing rail connections between Guangzhou and Shenzhen, such as the Guangzhou-Shenzhen-Hong Kong High-Speed Railway and the Guangzhou-Shenzhen Railway, are insufficient to meet the increasing travel demand [6] Economic Impact - The new high-speed railway is projected to reduce commuting time between the two city centers to half an hour, significantly improving travel efficiency [6] - It will facilitate rapid connections between Guangzhou Baiyun Airport and Shenzhen Bao'an Airport, enhancing the competitiveness of the Greater Bay Area's airport resources [6]