中国第一经济强省，完成了这项重大任务！

Core Viewpoint - The opening of the Guang-Zhan High-Speed Railway significantly enhances economic connectivity between the Greater Bay Area and the western Guangdong region, reducing travel time from Guangzhou to Zhanjiang to just one and a half hours [1][7]. Group 1: Project Overview - The Guang-Zhan High-Speed Railway is the longest high-speed rail line in Guangdong Province, measuring 401 kilometers in length [3]. - It operates at a maximum speed of 350 kilometers per hour and was built as a single-phase project [3][4]. - This railway is the highest standard, longest, and largest investment railway project ever constructed in Guangdong Province [4]. Group 2: Operational Details - The first train, G9785, departed from Guangzhou Baiyun Station at 10:30 AM, marking the official opening of the railway [4]. - Initially, up to 64 high-speed trains will operate daily, with travel times from Guangzhou Baiyun to Zhanjiang North and Maoming South being 1 hour 32 minutes and 1 hour 20 minutes, respectively [5]. - The new line reduces the travel time from Guangzhou to Zhanjiang by 61 minutes compared to the previous route via Jiangmen [5]. Group 3: Infrastructure and Connectivity - The railway connects seven cities: Guangzhou, Foshan, Zhaoqing, Yunfu, Yangjiang, Maoming, and Zhanjiang, with seven stations opening initially [4]. - Future connections include the ongoing construction of the Foshan-Zhaoqing station, which will serve as a high-speed station for the upcoming Pearl River Delta Hub (Guangzhou New Airport) [4][9]. - The Guang-Zhan High-Speed Railway will also link with the under-construction Hezhou-Zhanjiang high-speed railway and the planned Zhanjiang-Haikou high-speed railway, enhancing regional connectivity [9][10]. Group 4: Engineering Challenges - The railway features a high bridge-tunnel ratio of 76.7%, traversing complex geological conditions, including karst, soft soil, and expansive soil [4]. - Significant engineering feats include the Zhujiang Four-Line Super Bridge and the Zhanjiang Bay underwater tunnel, which set records for the longest single-bore underwater tunnel in China [4].