This paper studies the express train transportation organization to ensure that the cargo can be delivered in the shortest time. Based on this, this paper makes the following research: By comparing the characteristics of express cargo and the characteristics of its transportation, the time value of express cargo is studied. This paper analyzes the transportation organization of the express train, introduces the organization of the express train, and divides it into direct trains and transit trains to analyze the transportation organization process. Then, the model of the express train transfer node selection model is established. The model is based on the minimum cost of the train and the sum of the unit mileage cost and the time cost. The conditions for the delivery of various cargo, transportation capacity and traffic flow are constrained. The model and the solution ideas are proposed. The above model is verified by constructing a virtual network and formulating reasonable data. Finally, the stop nodes of each express train are obtained, and the correctness of the model is verified. © Published under licence by IOP Publishing Ltd.

With the rapid development of economy, the demand of road transportation is increasing day by day. On the other hand, with the continuous progress of road conditions and vehicle technology, drop and pull transportation, an advanced form of freight transportation organization, is getting more and more attention from government departments and transportation enterprises. Based on the SWOT analysis, the development status and problems of China's drop and pull transportation were researched deeply. Combined with the advantages of China's Information and Communication Technology and big data technology, some reasonable suggestions were put forward for the development of drop and pull transportation from the aspects of vehicle technology, freight source organization and informatization. It is hoped that drop and pull transportation will become more intensive, efficient and environmentally friendly. © Published under licence by IOP Publishing Ltd.

China's high-speed rail is already at the forefront of the world. The layout of the high-speed railway bus terminal is not only related to the construction of the high-speed rail network, but also a major strategic decision for urban development, and it is related to another leap forward development opportunity for the city. At present, the evaluation plan of the railway hub passenger transport system is not perfect, because many aspects of the plan are difficult to quantify, and it is prone to inaccurate judgments of factors that lead to more one-sided conclusion. This paper establishes a comparatively comprehensive set of layout evaluation indicators, advocates selecting or creating a corresponding index construction index system according to the characteristics of the evaluation target, and combines the entropy weighting method and the TOPSIS method to form a new rating method and applies it to the layout evaluation. © Published under licence by IOP Publishing Ltd.

This paper puts forward the ideas and methods for evaluating the transfer and connection ability of multi-mode rail transit, including high-speed railway, inter-city railway, regional railway and urban rail transit. In the first place, based on the transfer station, the transfer process of passenger flow is analyzed. After that, there are three ratios taken as calculation indexes which are the ratio of transport capacity to transport capacity, service facilities capacity to transport capacity, waiting time to transfer process time. In the end, a crucial step, the transfer capacity of rail transit terminal is calculated by using the entropy weight and TOPSIS method. In summary, a set of methods and procedures for evaluating the transfer and connection capacity of rail transit terminal are obtained, and an example is given to illustrate the transfer system to the subway system of Chengdu East Passenger Transport station on a certain day.
© Published under licence by IOP Publishing Ltd.

In view of the problems of high transportation cost, low loading and unloading efficiency, poor reinforcement in the transportation of glass and coiled steel, combined with the transportation of tubular goods such as aluminum rods and logs, a safe, stable and recyclable 20ft multifunctional platform container is designed, which is based on the "Code for Steel Structure Design". The overall structure of the 20ft multifunctional platform container consists of two parts: The bottom "platform"and the upper "A-frame", which has three functions of loading coiled steel, tubular goods and bare glass. In addition, the feasibility of loading cargo on platform container was checked in accordance with the requirements of the "Rules for Loading and Reinforcement of Railway Cargo". The platform container is constructed and carried on the finite element analysis by using the software named SolidWorks, its stress analysis and displacement analysis results are in line with relevant regulations. The designed multifunctional platform container can improve the loading and unloading efficiency of glass and coiled steel transportation, save loading reinforcement materials and transportation costs, having a promising market prospect. © Published under licence by IOP Publishing Ltd.

To ensure the feasibility of optimized train stop planning, this paper proposes a novel optimization method. A train scheduling compilation simulation experiment was conducted based on train stop planning. Train scheduling was then evaluated for optimization of train stop planning. Specifically, random interference and dynamic matching of buffer time distribution and train stop planning were embedded into the simulation experiment. The resources occupied and stability of train scheduling were adopted as the objective function, and passenger demand, number of stops were used as constraints. Genetic algorithm and the resolution strategy of constraint conflict were designed to solve the model. Finally, numerical experiments were implemented based on the operational data of Shanghai-Nanjing intercity railway. Results showed that optimized train stop planning improves carrying capacity by 8.47% under the premise of ensuring good stability, which verifies the effectiveness and efficiency of the proposed approach. © ASCE.

In response to the issues of insufficient throat capacity at high-speed railway stations. This paper proposes a train scheduling model that considers the balance of capacity utilization and has the ability to optimize the train diagram under large-scale traffic flow. Considering the ability to use exclusive constraints, this model is a 0-1 planning model which is based on the cumulative flow theory, with the objective of minimizing total travel time of trains. Comparing with other models, this model has tighter constraints and can compress the decision space. In order to solve the large-scale example, this paper proposes a Lagrangian relaxation algorithm. This method decomposes the difficult problem into sub-problems that are easy to solve. Through examples, we prove that the proposed method improves the quality of the solution by 2.83%, and the upper and lower bound gap can be optimized to 24%. © ASCE.