Core Viewpoint - The opening of the Guangzhou-Zhanjiang high-speed railway and the Shantou South to Shantou section of the Shantou-Shanwei high-speed railway marks a significant milestone in Guangdong's railway development, enhancing connectivity and supporting the economic growth of the Guangdong-Hong Kong-Macao Greater Bay Area [1][2][3] Group 1: High-Speed Railway Development - The Guangzhou-Zhanjiang high-speed railway (GZ-HSR) is a national-level trunk railway with a total length of 401 kilometers and a bridge-tunnel ratio of 76.7% [2] - The GZ-HSR features the longest underwater tunnel in China, contributing to the goal of achieving "350 km/h high-speed rail access for every city" in Guangdong [2] - With the new lines, Guangdong's railway operating mileage reaches 6,433 kilometers, with high-speed rail mileage of 3,411 kilometers, ranking first in the country [3] Group 2: Economic Impact - The GZ-HSR enhances the transportation network, allowing for efficient connections between the Greater Bay Area and the western and eastern regions of Guangdong, thus facilitating economic integration [4][5] - The railway's opening alleviates pressure on existing transport routes, improving overall transportation efficiency and supporting the logistics needs of the burgeoning industries in the western Guangdong region [4][7] - The GZ-HSR is expected to boost the blue economy in Zhanjiang, enhancing the port's radiation capacity and enabling faster delivery of high-value products to major markets [7] Group 3: Tourism and Cultural Integration - The opening of the GZ-HSR is anticipated to promote tourism by connecting cultural and tourism resources along the route, fostering deeper integration of agriculture, culture, and tourism [8] - Travel agencies are leveraging the new railway to develop rich travel experiences and cross-regional products, enhancing interaction between the Greater Bay Area and western Guangdong's tourism markets [8]