Core Viewpoint - The construction of major infrastructure projects in the Guangdong-Hong Kong-Macao Greater Bay Area is significantly enhancing connectivity, but these projects face challenges related to typhoon resistance and stability under extreme weather conditions [1][2]. Group 1: Infrastructure Projects - The Huangmaohai Cross-Sea Channel, which began construction in June 2020 and is set to open in December 2024, spans approximately 31 kilometers, with a 14-kilometer sea crossing [2][4]. - The Shenzhen-Zhongshan Link, which includes the world's largest span offshore steel box girder suspension bridge, is noted for its complex construction challenges due to frequent typhoons in the region [4][5]. - The Lion Rock Channel is another significant project, featuring the world's first double-deck suspension bridge exceeding 2000 meters in span [5][6]. Group 2: Engineering Innovations - Engineers are employing advanced technologies to enhance the wind resistance of these bridges, including the development of a new combination dynamic structure for the Shenzhen-Zhongshan Link that improves its critical wind speed to 88 m/s, allowing it to withstand a typhoon of level 17 [5][6]. - The Huangmaohai Cross-Sea Channel has implemented wind tunnel tests to optimize its design, achieving performance that exceeds international comfort standards for wind-induced vibrations [4][5]. - The projects involve collaboration with multiple prestigious universities to conduct extensive wind tunnel experiments, leading to the selection of optimal cable and beam designs that enhance stability against wind-induced vibrations [6][7]. Group 3: Typhoon Preparedness - The approach to typhoon preparedness includes deploying thousands of personnel for inspections and safety checks across various construction sites, with significant resources allocated for emergency response [7][8]. - During the impact of Typhoon "Hagupit," the Hong Kong-Zhuhai-Macao Bridge was temporarily closed, and extensive monitoring was conducted to ensure safety [7][8]. - The monitoring systems for bridges like the Humen Bridge have been intensified to ensure rapid response to any sudden changes in conditions [9].

Core Viewpoint - The article discusses the rapid development of the Guangdong-Hong Kong-Macao Greater Bay Area through major engineering projects, emphasizing the importance of wind resistance in bridge design due to the region's susceptibility to super typhoons [2][3]. Group 1: Engineering Projects - The Huangmaohai Cross-Sea Channel, which began construction in June 2020 and is set to open in December 2024, is a key project connecting Zhuhai and Jiangmen, featuring a main span of approximately 700 meters [3][5]. - The Shenzhong Channel, which includes the Shenzhong Bridge, is noted as the world's most complex cross-sea engineering project, integrating bridge, island, tunnel, and underwater connections [6][7]. Group 2: Wind Resistance Technologies - Advanced technologies such as "wind nozzles + vortex plates + central stabilizing plates" and "horizontal wing plates + vortex suppression grids" have been developed to enhance the wind resistance of large-span bridges [6][8]. - The Huangmaohai Cross-Sea Channel has conducted the world's first full-bridge vortex wind tunnel test, demonstrating superior wind resistance performance compared to international comfort standards [6][7]. Group 3: Recent Typhoon Impact - Typhoon "Hua Jia Sha," classified as a super typhoon, impacted Guangdong with wind speeds reaching 52 meters per second, prompting extensive safety measures and inspections across various bridge projects [9][10]. - The Guangdong Transportation Group mobilized over 9,396 personnel for pre-typhoon inspections and implemented temporary closures of major bridges, including the Hong Kong-Zhuhai-Macao Bridge [9][10].

Core Viewpoint - The construction of major infrastructure projects in the Guangdong-Hong Kong-Macao Greater Bay Area is accelerating regional integration, but these projects face significant challenges due to extreme weather conditions, particularly typhoons [1][2]. Group 1: Infrastructure Projects - The Huangmaohai Cross-Sea Passage, which began construction in June 2020 and is set to open in December 2024, is a key project connecting Zhuhai and Jiangmen, with a total length of approximately 31 kilometers and a sea-crossing section of about 14 kilometers [2][4]. - The Shenzhong Passage, which includes the Shenzhong Bridge, is recognized as the world's most complex cross-sea cluster engineering project, featuring a total length of 2826 meters and a main span of 1666 meters, making it the largest span offshore steel box girder suspension bridge globally [5][6]. Group 2: Engineering Challenges - The design of bridges in the Pearl River Estuary prioritizes wind resistance due to the region's susceptibility to super typhoons, with engineers employing advanced technologies to ensure stability and safety under extreme wind conditions [2][4]. - The Huangmaohai Cross-Sea Passage has implemented innovative aerodynamic control technologies to manage bridge vibration and wind resistance, achieving performance that exceeds international comfort standards [5][6]. Group 3: Typhoon Impact and Response - Typhoon "Hagupit," classified as a super typhoon, impacted Guangdong, prompting the temporary closure of the Hong Kong-Zhuhai-Macao Bridge and extensive safety checks by the Guangdong Transportation Group, which deployed 9396 personnel for pre-typhoon inspections [8][9]. - The Guangdong Transportation Group has activated emergency response measures across 52 highway sections, with various levels of wind emergency responses initiated to ensure safety during the typhoon [10][11].

Core Viewpoint - Yuexiu Transportation Infrastructure reported a 14.9% year-on-year increase in revenue to 2.099 billion HKD and a 14.9% rise in shareholder profit to approximately 361 million HKD for the first half of 2025, primarily driven by the contribution from the Pinglin Expressway [2] Financial Performance - The company declared an interim dividend of 0.12 HKD per share, with a payout ratio of 50.6%, down from 58.5% in the same period last year [2] - Total assets amounted to 37.379 billion HKD, with total liabilities at 21.634 billion HKD, resulting in a capital borrowing ratio of 48.5% and a total asset liability ratio of 57.9% [5] - Cash and cash equivalents increased by 190 million HKD to 2.17 billion HKD by the end of the reporting period [5] Project Contributions - The Pinglin Expressway generated toll revenue of 256 million HKD and a profit attributable to shareholders of 42 million HKD in the first half of 2025 [2] - Other expressways, such as the Cangyu Expressway and Chang-Zhu Expressway, benefited from increased travel, showing a year-on-year increase in both daily toll traffic and revenue [3] Impact of External Factors - The Humen Bridge experienced a 26.5% year-on-year decline in daily toll revenue due to traffic diversion from the Shenzhen-Zhongshan Channel [4] - The Guangzhou North Second Ring Expressway saw a slight decrease in toll revenue by 0.5% due to a minor reduction in truck traffic [3][4] Future Outlook - The company anticipates stable performance from the Pinglin Expressway, with expected earnings for the first and second halves of the year remaining relatively consistent [2] - The management is considering the acquisition of the Shandong Qinbin Expressway from the parent company, contingent on financial and resource assessments [4] Financing and Support - The company has received approval to issue 5 billion HKD in panda bonds and 3 billion HKD in ordinary corporate bonds, along with a 15 billion HKD debt financing tool quota [6] - The Guangzhou North Second Ring expansion project has secured a credit limit of 11.9 billion HKD, with an additional 2 billion HKD in standby credit [6]