Urban Rail Transit In China Research Articles

A Feeder-Bus Dispatch Planning Model for Emergency Evacuation in Urban Rail Transit Corridors.

The mobility of modern metropolises strongly relies on urban rail transit (URT) systems, and such a heavy dependence causes that even minor service interruptions would make the URT systems unsustainable. This study aims at optimally dispatching the ground feeder-bus to coordinate with the urban rails’ operation for eliminating the effect of unexpected service interruptions in URT corridors. A feeder-bus dispatch planning model was proposed for the collaborative optimization of URT and feeder-bus cooperation under emergency situations and minimizing the total evacuation cost of the feeder-buses. To solve the model, a concept of dummy feeder-bus system is proposed to transform the non-linear model into traditional linear programming (ILP) model, i.e., traditional transportation problem. The case study of Line #2 of Nanjing URT in China was adopted to illustrate the model application and sensitivity analyses of the key variables. The modeling results show that as the evacuation time window increases, the total evacuation cost as well as the number of dispatched feeder-buses decrease, and the dispatched feeder-buses need operate for more times along the feeder-bus line. The number of dispatched feeder-buses does not show an obvious change with the increase of parking spot capacity and time window, indicating that simply increasing the parking spot capacity would cause huge waste for the emergent bus utilization. When the unbalanced evacuation demand exists between stations, the more feeder-buses are needed. The method of this study will contribute to improving transportation emergency management and resource allocation for URT systems.

Formation mechanism of quick emergency response capability for urban rail transit: Inter-organizational collaboration perspective

With the rapid development of urban rail transit in China recently, improving its quick emergency response capability is becoming an important issue. Based on the perspective of inter-organizational collaboration, this article examines the formation mechanism of quick emergency response capability of urban rail transit and proposes the concept model hypothesis, in order to highlight the inter-organizational emergency collaboration relationships and the quick emergency response capability. According to site surveys and analysis of the elements of inter-organizational collaboration in emergency rescue and the meaning of quick emergency response capability, the scale of emergency collaboration and emergency response capability is designed, and the hypothetical concept model is tested by structural equation model. The results indicate that the emergency collaboration can be realized mainly through emergency organizations, resources, plans, and information. These elements interact with each other; the quick emergency response capability includes fast reaction and emergency disposal capability, emergency decision and execution capability, and coordination and joint action capability. These capabilities restrict each other. Moreover, emergency collaboration has significant but different influence on different dimensions of quick emergency response capability. Therefore, allocating and controlling emergency elements are pivotal to realizing inter-organizational emergency collaboration and generating the quick emergency response capability of urban rail transit.

Passenger satisfaction evaluation model for Urban rail transit: A structural equation modeling based on partial least squares

The rail transit has played an important role in economic vitality of the urban area. Providing services with high levels of quality is essential in order to promote public transportation by customizing the users of the services, and to reduce traffic congestion by shifting people away from private car use. For this reason, it is essential to understand passenger satisfaction with urban rail transit from a quantitative and systematic perspective. This paper borrows the fundamental concept of the American Customer Satisfaction Index (ACSI) model to establish a passenger satisfaction evaluation model for urban rail transit in China. A structural equation modeling (SEM) method and its parameter estimation method: Partial Least Squares (PLS), are applied to estimate the proposed model. An evaluation indicator system including three levels of indicators is established to measure passengers’ satisfaction on the services offered by the rail transit operation companies. The satisfaction index is obtained to quantize the degree of passenger satisfaction. The IPA matrix is used as an assist tool to show the advantages and disadvantages of the services of rail transit. Suzhou rail transit line 1 was used as a case study, four models with different latent constructs or estimation methods were built and compared, to demonstrate the proposed PSI model based on PLS estimation method was reliable and the sign and magnitude of parameters were reasonable. The causality between passenger satisfaction and its influence factors were confirmed by path coefficients of the model.

Estimation method for a skip-stop operation strategy for urban rail transit in China

The skip-stop operation strategy (SOS) is rarely applied to Chinese urban rail transit networks because it is a simple scheme and a less universally popular transportation service. However, the SOS has performance advantages, in that the total trip time can be reduced depending on the number of skipped stations, crowds of passengers can be rapidly evacuated at congested stations in peak periods, and the cost to transit companies is reduced. There is a contradiction between reducing the trip time under the SOS and increasing the passengers’ waiting times under an all-stop scheme. Given this situation, the three objectives of our study were to minimize the waiting and trip times of all passengers and the travel times of trains. A comprehensive estimation model is presented for the SOS. The mechanism through which the trip time for all passengers is affected by the SOS is analyzed in detail. A 0–1 integer programming formulation is established for the three objectives, and is solved using a tabu search algorithm. Finally, an example is presented to demonstrate that the estimation method for the SOS is capable of optimizing the timetable and operation schemes for a Chinese urban rail transit network.

Applicative Suburban Line Pattern of Urban Rail Transit in China

By comparing the operation data of urban rail transit at home and abroad, this paper has analyzed the current urban rail transit system in China from the perspective of applicability and found that the structure is irrational and functional orientation of urban and suburban line is not clear. This paper has also attached great importance to the research on suburban railway, and analyzed the adaptability, planning and construction conditions and the development trend of suburban railway in China.

Research on Land Exploitation and Utilization Guided by Urban Rail Transit

Under the background of rapid development of urban rail transit, how it effectively guides land exploitation and utilization becomes the key of urban land exploitation. Based upon the analysis of the land exploitation modes guided by urban rail transit home and abroad, this paper compares and analysis the relevant factors of land exploitation guided by urban rail transit, and proposes some suggestions for the land exploitation and utilization guided by urban rail transit in China.

Research on Land Exploitation and Utilization Guided by Urban Rail Transit

Under the background of rapid development of urban rail transit, how it effectively guides land exploitation and utilization becomes the key of urban land exploitation. Based upon the analysis of the land exploitation modes guided by urban rail transit home and abroad, this paper compares and analysis the relevant factors of land exploitation guided by urban rail transit, and proposes some suggestions for the land exploitation and utilization guided by urban rail transit in China.