【#Tech24H】The 2026 Guangdong-Hong Kong-Macao Greater Bay Area Smart Transportation Technology Innovation Conference and Exhibition opened in Guangzhou on the 24th. At this transportation industry event, a host of new smart transportation technologies for bridge construction, road network operation and maintenance, and engineering inspection made their collective debut. For example, a rapid tunnel monitoring system can detect surface pavement distress and capture issues such as road surface damage; slope deformation monitoring radars and traffic roadside radars form an active safety perception and early warning solution that can conduct round-the-clock, uninterrupted monitoring of expressway slopes and road risks, automatically identifying hazards and triggering linked alerts, thereby reinforcing the defense line against geological disaster risks in mountainous road areas. The 13 parallel thematic exchange sessions held that day covered the entire industrial chain of hot topics, including highway maintenance, intelligent construction of bridges and tunnels, smart road network operations, integrated digital construction-management-maintenance, high-quality development of ordinary highways, intelligent geotechnical engineering monitoring, innovative transportation materials, digital cost management, and low-altitude transportation integration.