The sustainable development of container rail-water intermodal transport in China faces a series of deep-seated constraints. In this paper, we quantitatively summarize the development status of container rail-water intermodal transportation in China’s ports. Next, the typical problems faced by the sustainable development of rail-water intermodal transport are analyzed from the bottom constraints and direct constraints. Finally, this paper proposes strategic ideas to promote sustainable development of rail-water intermodal transport, taking into account network layout, technical equipment, data exchange rules, and policy environment.

An efficiency evaluation model of government functional departments is constructed, taking China`s Maritime Department as an example. Firstly, based on the value-focused-thinking method, an evaluation indicator system of maritime government departments efficiency evaluation is constructed, including 4 dimensions, 21 secondary indicators, and 41 tertiary indicators, constructing 2 categories of target indicators and monitoring indicators. Secondly, the weight of each indicator is determined by the AHP using the MATLAB software. Finally, the generalized utility function is used to calculate the comprehensive evaluation value of efficiency and an empirical analysis was conducted. The evaluation model will help to deepen the theoretical connotation of the efficiency of government functional departments and promote the exploration of quantitative evaluation methods of government efficiency.

With the increasingly close economic and trade exchanges between regions, port economy plays an increasingly prominent role in driving a city's radiation. Taking Tianjin, the largest port city in northern China, as an example, based on clarifying the connotation of port economy, this paper sorted out the current development status of Tianjin port economy and analyzed the problems faced by the port economy in the process of development, such as port radiation level to be improved, shipping service system to be improved, and harbor industry to be optimized. Furthermore, specific countermeasures and suggestions were put forward according to the three dimensions of hub radiation economy, high-end shipping economy and harbor industrial economy, so as to further enhance the development level of Tianjin's port economy and inject new momentum for the port city to achieve higher quality development.

An optimization method for evaluating urban rail transit vehicle base schemes based on resilience theory was proposed. A comprehensive evaluation index system was established based on four aspects: asset resilience, network resilience, user resilience, and social resilience. An optimization method for evaluating urban rail transit vehicle base schemes based on resilience theory was proposed. A comprehensive evaluation index system was established based on four aspects: asset resilience, network resilience, user resilience, and social resilience. Weights were determined by combining expert opinions from different backgrounds using an improved AHP. The index values were standardized using the linear proportional transformation method. The generalized utility function was used to calculate the comprehensive evaluation value of the design scheme. The optimization method helps to promote the quantitative decision-making of the selection scheme. At the same time, it improves the shortcomings of the qualitative evaluation. The optimization method helps to promote the quantitative decision-making of the selection scheme. At the same time, it improves the shortcomings of the qualitative evaluation in the traditional program selection decision, which is easy to generalize. The evaluation method provides a reference for the actual decision-making of building a more resilient vehicle base project. The evaluation method provides a reference for the actual decision-making of building a more resilient vehicle base project.