The vigorous development of e-commerce has brought great pressure on urban logistics distribution and environmental protection. At present, it is a new idea to let the subway undertake part of the freight function to solve this problem. Based on the operation characteristics and future development trend of urban metro, this paper studies the metro freight transport under the mode of "shared lines but not shared trains". Combined with the operation situation and internal structure of the metro system, through the establishment of a combination model of E-TOPSIS flow screening model, set coverage model, and mixed integer programming, this paper analyzes the metro stations, and selects appropriate stations as freight stations. Finally, the freight transport scheme of urban metro under the mode of "sharing lines but not sharing trains" of metro passenger and freight trains will be realized. Finally, take Tongzhou District of Beijing as an example to carry out simulation and find out the subway stations that can carry out freight transport in Tongzhou District, so as to verify the method of selecting subway freight stations.

To meet the market demand and enhance the transportation potential of Beijing New Airport and its surrounding enterprises, it is essential to develop multimodal transport systems and effectively allocate transportation supply resources. This study esamines the evolutionary dynamics among the multimodal transport organization: air transport enterprises, road transport enterprises and multimodal transport operators. The focus is on their collaborative strategies to establish a functional multimodal transport cooperation mechanism. A tripartite evolutionary game model is constructed, wherein each participant evaluates the trade-off between cost inputs and potential additional benefits to determine their participation in forming an intermodal organization. Throughout the research, the cooperative intentions of the stakeholders were defined, and the strategic selection evolution paths of each participant within the multimodal transport organization were simulated and analyzed. Variations in the business scale coefficient, transportation income coefficient, and new market loss coefficient were systematically altered to assess their impact on the participants' strategic choices. The findings indicate that: firstly, the initial willingness of participants significantly influences the establishment and effective functioning of the multimodal transport organization; specifically, the initial cooperative intent of transport enterprises is crucial for the formation of such organizations. Secondly, the behavioral strategies chosen by operators can affect both the costs incurred by transportation enterprises and the additional revenues generated from new markets. Internal factors, such as equitable income distribution, are conducive to the successful establishment of multimodal transportation organizations. Lastly, external environmental factors, including business scale and fluctuations in market development, also influence the willingness of members within multimodal transport organizations. Consequently, the varying behaviors of transport enterprises can impact the operators' business attitudes, thereby affecting the organizational evolution trajectory and the time required to achieve equilibrium.