The pursuit of high-quality passenger travel experiences and efficient operation management defines the development of smart transportation hubs. A construction of a digital foundation was proposed based on the critical factors that influence the quality of travel services at transportation hub, aiming to transcend business boundaries and foster the integration and convergence of diverse systems. It is the foundation of fusion services scheme for transportation hubs which integrates and processes information on railway, subway, bus, taxi, and social vehicle connections in a unified manner. Specific design solutions are provided, including multi-source information fusion services, integrated broadcasting, and collaborative operation and scheduling, to achieve data sharing and collaborative services. The scheme drives intelligent operation management through data fusion, enhances the quality of travel information services, improves the efficiency of coordination of different transportation modes, and assists in the integrated development of stations and cities.