Abstract:As a critical skeletal infrastructure for alleviating regional traffic congestion and enhancing road network operational efficiency, the scientific layout of entrance and exit ramps on urban expressways directly determines the mainline traffic capacity and the traffic transfer efficiency of connecting road networks. The Jining - Qufu Expressway is an important part of the “seven-horizontal and seven-vertical” expressway network in the Jining metropolitan area. Taking it as the research subject, the systematic demonstration is conducted from the perspectives of ramp layout principles, service demands of adjacent areas, traffic operation functional positioning, and regional road network structural relationships. On this basis, a rational layout scheme for entrance and exit ramps is proposed, providing a theoretical foundation and practical reference for the planning and design of ramps in similar expressway engineering.