High-speed Rail Transport Research Articles

Оценка энергоэффективности скоростного и высокоскоростного железнодорожного транспорта

analysis and definition of energy efficiency criteria for high-speed and high-speed rail transport. Methods: development of a comprehensive system of indicators for assessing the efficiency of production in rail transport, taking into account the specifics of various types of transportation and technological processes, in particular the energy efficiency of high-speed and high-speed rolling stock, focused on the practical significance and economic feasibility of the results. Results: the efficiency of high-speed rolling stock is indicated, the energy efficiency of high-speed rolling stock is assessed, the indicators of energy efficiency of rail transportation are considered, the differences between a high-speed train and a conventional train are analyzed, the system for assessing the energy efficiency of high-speed rail transportation is considered, the energy efficiency of high-speed transportation is considered in relation to increasing travel speeds. Practical significance: the use of absolute energy consumption indicators for a more accurate assessment of the efficiency of rail transportation does not allow for an adequate assessment of the scale of production activities. Specific indicators, such as energy intensity per net ton-kilometer, although more informative, do not take into account the diversity of technological processes and rolling stock in the railway industry. This article will allow us to revise the existing assessment of the energy consumption of high-speed trains, and will allow us to consider the use of this indicator in assessing the efficiency of energy consumption of highspeed trains in Russia.

Analysis of Travel Mode Choice Behavior between High-Speed Rail and Air Transport Utilizing Large-Scale Ticketing Data

As essential infrastructure, high-speed rail (HSR) and air transport (AT) play crucial roles in socioeconomic development. With their continuous expansion in China, the overlap of HSR and AT networks has increased, providing travelers with more choices for intercity travel. Because fierce competition in the medium-to-long-distance segment affects the market share and transport capacity dispatching, the travel choice between HSR and AT has been of intense interest. This study utilized a unique fusion dataset collected from two separate organizations to conduct an empirical analysis of the travel mode choice behaviors of individuals when choosing between HSR and AT. A multinomial logit (MNL) model was adopted to examine the influences of key factors on passenger choice preferences. The results showed that the fitting effect of the MNL model was satisfactory, and the parameters were strongly interpretable. The McFadden Pseudo R2 with a city-pair fixed effect in the MNL model increased by 17.3% compared with that without the city-pair fixed effect. All the related explanatory variables, including the trip distance by high-speed train, demography, ticket purchasing, and travel behavior characteristics, had significant positive effects on the passengers’ choice of AT, with trip distance having the largest effect. According to the parameter estimation, 1,160 km was the division for individual choice between HSR and AT. This study also compared the prediction accuracies of the MNL model and eight classical machine-learning models and found that random forest had the best performance. This study provides a new framework for analyzing travel choice modeling when choosing between HSR and AT.

A review on research regarding HSR interactions with air transport and outlook for future research challenges

A review on research regarding HSR interactions with air transport and outlook for future research challenges

Spatiotemporal Accessibility of Rail Transport Systems in the Guangdong–Hong Kong–Macao Greater Bay Area and Its Implications on Economic Equity

Reducing inequality and fostering economic growth is the tenth global goal of the United Nations for sustainable development. Rail transport significantly influences spatial structures, industrial distributions, and is vital for regional economic integration. Despite its importance, the impact of rail transport on economic equity has not been thoroughly explored in current literature. This study aims to fill this gap by evaluating the spatiotemporal characteristics of rail transport accessibility and its implications for economic equity in the Guangdong–Hong Kong–Macao Greater Bay Area. We considered high-speed, intercity, and conventional rail transport and employ three distinct indicators—door-to-door travel time, weighted average travel time, and potential accessibility—to provide a nuanced assessment of accessibility in the region. Each indicator provides a unique perspective on how accessibility affects economic equity, collectively broadening the scope of the analysis. From 1998 to 2020, the evolution of rail transport and its consequent impact on regional economic equity is scrutinized. Advanced econometric methods, namely ordinary least squares, and spatial Durbin models, are combined with the Gini coefficient and Lorenz curve for comprehensive quantitative analysis. This approach highlights the dynamic influence of rail transport development on economic equity, contributing to the sustainable urban development discourse. The results reveal that although rail transport advancements bolster connectivity and economic growth, they also exacerbate regional economic inequality. This study provides valuable insights for urban planning and policymaking by elucidating the complex relationship between rail transport accessibility and economic equity. Our findings underscore the importance of implementing balanced and inclusive transport policies that foster growth and efficiency while mitigating socioeconomic disparities.

A robust optimisation approach of train timetabling for freight transportation using high-speed railway

To ensure reliable services for high-speed freight rail transport, we address the issue of robust freight train timetabling by incorporating buffer times. Unlike passenger trains with prescribed timetables, high-speed freight train timetables need to be scheduled from the beginning and integrated into existing passenger schedules. To achieve reliable high-speed rail freight services, we introduce robust parameters that determine the buffer times for train operations and station stops. Using these, we develop an integer linear robust model aimed at maximizing timetable robustness, considering given control parameters, while minimizing travel and deviation times. We employ an integer Benders decomposition algorithm to solve this model efficiently. Our robust optimization method is validated through experiments using data from the Chengdu-Chongqing high-speed railway, demonstrating the efficacy and efficiency of our model and algorithm, especially in balancing efficiency and robustness.

Collaboration between High-Speed Rail and Urban Transportation to Improve Urban Air Quality in Green Travel

Although high-speed rail (HSR) can reduce the total pollutant emission in intercity travel by replacing road travel, the scope of air pollution caused by vehicles is narrow, suggesting that HSR operation has limited impact on improving urban air quality. However, many studies have confirmed that the opening of HSR does significantly improve air quality in urban districts where HSR stations are located, and the improvements occur in real time. To study the real-time pathways through which this effect arises, this paper discovered the relationship between the opening of HSR, urban transportation, and urban air quality using mediation effect theory. The results showed that HSR has no significant direct impact on improving urban air quality, but mainly affected urban air quality indirectly and in real-time through urban transportation. This paper has identified and confirmed the real-time impact path of HSR on urban air quality, and provided some suggestions related to intercity travel and green tourism to promote the development of green consumption.

Research on named entity recognition method for high-speed railway technology transformation project text

Abstract High-speed railway technology transformation projects are crucial to the layout of high-speed rail transportation production, high-speed rail safety, and high-speed rail operation and management. However, the data of high-speed railway technology transformation projects is mainly stored in the form of unstructured text, and the relevant personnel of high-speed railroad often need to manually go through the form to extract the key information of the project data and enter it into the system, with a low degree of automation and intelligence. Therefore, to improve the efficiency and quality of processing the data of high-speed railway technology transformation projects, and help the intelligent development of high-speed railways, this paper constructs the RoBERTa-BiLSTM-CRF fusion model to automate the identification of key information entities in the data of high-speed railway technology transformation project. The experimental data were selected as technology transformation project documents of a railway bureau from 2013 to 2022, and six defined entity types were identified. Experimental results show that the constructed model can effectively identify six types of defined entities, and the F1 value of each type of entity is above 90%. In addition, compared with other commonly used models, the F1 value has been significantly improved. The fusion model proposed in this paper can be used as a method to automatically extract key information for high-speed rail technology transformation projects.

Bridging the gap between high-speed rail transport studies and cluster economics through social knowledge exchange: future research potential

ABSTRACT Within the high-speed rail debate (HSR) there has been lacking in-depth theoretical and evidential research on the role HSR has on tacit knowledge flows between industrial clusters or regions of economic productivity. The research that has begun to emerge has focused on knowledge indicators such as patents for social/tacit knowledge exchange, which this paper raises concerns over. This review aims to discover new links for HSR with cluster economics through social knowledge theory and aims to create a conceptual framework that will provide a new perspective for future research in the HSR debate concerning social knowledge exchange. Potential implications are presented for future transport policy decision-making, based on the relationship HSR may have with inter-regional tacit knowledge flows and accessibility benefits in regional balancing. Future research considerations are pointed out that argue to measure the flow of knowledge from HSR, research needs to go in-depth to the social aspect of interactions and relationship buildings, as quantitative data will struggle to capture tacit knowledge flow itself, due to the tacit nature of such information. The presented framework highlights the tacit nature of interactions facilitated by HSR connectivity.

Statement of the problem of selecting and justifying the technical and operational characteristics of rail circuits on high-speed rail transport

Statement of the problem of selecting and justifying the technical and operational characteristics of rail circuits on high-speed rail transport

Rail Mobility and the “China Model”

Abstract China's all-in embrace of high-speed rail transportation has put trains back in the global discourse, reshaping international and national imaginaries. Incorporating the Chinese case can substantially reshape our understanding of rail mobility can be and ought to be. The nationwide transformations wrought by Chinese rail offer mobility studies an opportunity to reengage with how mobility shapes community at the national scale, and the central role of the state highlights the peculiar connection between rail imaginaries and an interventionist state—paralleling a striking renaissance of rail imaginaries in Europe and the United States. As the “China Model” circulates across the globe and Chinese rail technologies proliferate, Chinese rail mobility will remain both theoretically and empirically significant.

The Nexus of IoT technology: A renewable multi-module energy harvester for self-powered on railway

The Nexus of IoT technology: A renewable multi-module energy harvester for self-powered on railway

Reshaping China's urban networks and their determinants: High-speed rail vs. air networks

Reshaping China's urban networks and their determinants: High-speed rail vs. air networks

Retracted: Cluster Coordination between High-speed Rail Transportation Hub Construction and Regional Economy Based on Big Data

Retracted: Cluster Coordination between High-speed Rail Transportation Hub Construction and Regional Economy Based on Big Data

Transport Policy as a Way to Strengthen Geostrategic Position – A Review of Vienna as a Centre of Air and High-Speed Rail Transport in Central Europe

Vienna’s geostrategic importance fluctuated through the ages because of the power clashes and subsequent political and socio-economic impacts on the population. This paper assesses its current position in a historical context and then focuses more on the socio-economic dimensions such as interconnectedness and other transport aspects of the geostrategic position. Air and environmentally friendlier modes of passenger transport like high-speed rail are considered and analysed in the European context. This paper also reviews the results and issues dealing with the development of the Vienna Airport and the progress of high-speed railway projects in the Central European Economies (CEEs) after the European Union’s enlargement in 2004. The results suggest that after a restoration period of Vienna’s geostrategic position between 1995–2005, there is currently only a moderate and slowly growing exercise of power, control or influence over the CEEs. The results suggest that there is competition from busier German hub airports as well as the growing importance of CEE airports in transit and growing passenger transport performance figures. The lack of environmentally friendly high-speed infrastructure as a viable option instead of the fastest air travel is preventing Vienna to strengthen its strategic position. Its strategic importance is highly affected by the underdeveloped transport networks in CEEs and the future development of the Vienna Airport as a major transport hub.

Does high-speed rail affect the agglomeration of banks in China?

This paper assesses the distributional impacts of high-speed rail (HSR) transportation on the agglomeration of banks in China. Using the data of county-level cities in China from 2000 to 2017, we find that the proliferation of HSR yields a positive impact on our indicators of banking agglomeration in large counties, while its impact in small counties is negative. Our results are consistent with a promotive effect of HSR lines to induce banking resources to be increasingly clustered toward large counties in China.

Evolution towards Coordinated Multi-Point Architecture in Self-Organizing Networks for Small Cell Enhancement Systems

This paper explores applications of the coordinated multi-point (CoMP) architecture operation of enhanced node B (eNB) in wireless communication networks featuring device-to-device (D2D) signaling. This is applied to cellular phone coverage for rapid mass transit systems, such as the Taiwan high speed rail transport system, and indoor public environments. The paper is based on formulas pertaining to the link between budget design and guidelines, as well as principles and theories of engineering practice, allowing designers to analyze and fully control the uplink and downlink signals and output power of fiber repeaters linking cellular phones to base stations. Finally, we employ easily installed cellular-over-fiber optic solutions for a small cell enhancement (SCE) system with novel architecture based on a leakage coaxial cable system using LTE-A technology. As a result, we successfully applied enhanced coverage designs for distributed antenna systems. These can be used to create self-organizing networks (SoN) for an Internet of Things.

The combined effects of high-speed rail and aviation on tourist arrivals in China

The combined effects of high-speed rail and aviation on tourist arrivals in China

Vertical and lateral random vibration of high-temperature superconductor maglev under high-speed operation conditions

High-temperature superconductor (HTS) maglev systems shows significant potential to be applied to high-speed rail transportation based on its passive stable levitation owing to the coupling between the HTS bulks and permanent magnetic guideway (PMG). As one of the key factors to guarantee the safe and stable operation of HTS maglev, the dynamic characteristics of the HTS bulks reflecting the operational performance of the HTS maglev system under high-speed running conditions should be focused on. Therefore, this paper, based on H-formulation, established a finite element model of an HTS-PMG system, and assessed its feasibility by experiments. Moreover, the random free vibration of the HTS bulk caused by guideway random irregularity at high speed is also studied by this validated model. The random vibration characteristics and temperature variation of the HTS bulk at three high speeds (600 km h−1, 800 km h−1, and 1000 km h−1) under vertical vibration, lateral vibration, and vertical-lateral coupling vibration, respectively, are compared. The results show that at high speed, vertical vibration can only cause the fluctuation of levitation height, while lateral vibration and vertical-lateral coupled vibration will affect both lateral offset and levitation height. Compared with the mere vertical or lateral vibration mode, the levitation height attenuation and temperature rise of the coupling vibration mode is greater due to more energy loss caused by magnetic flux motion, but it can aid in the suppression of the vibration in the vertical and lateral directions. The increase of velocity intensifies the vibration strength of the HTS bulk and increases the fluctuation of the levitation height, lateral offset, and temperature rise. However, vibrations at a certain high speed causes a limited temperature rise and thus a limited influence on the bulk performance, and the HTS bulk is still in the safe operating range at a maximum speed of 1000 km h−1. These conclusions are anticipated to provide some references for future high-speed applications of the HTS maglev system.

Enhancing intercity transportation will improve the equitable distribution of high-quality health care in China

Enhancing intercity transportation will improve the equitable distribution of high-quality health care in China

Evaluating Accessibility Based on the Combined High-Speed Rail and Air Transportation Network in China

Both high-speed rail (HSR) and air transportation networks have important impacts on accessibility to cities. However, few attempts have been made to analyze the combined modal accessibility of HSR and air, especially in the case of China. To fill this gap, this study aims to measure accessibility under a combined HSR and air transportation network in China. Average travel time (ATT), weighted average travel time (WATT), and potential accessibility (PA) are employed as indicators of accessibility. The results show that inter-urban accessibility under the combined network shows a decreasing trend from the central to the surrounding region, with the level of combined network urban accessibility significantly higher than that of either individual network. Under the ATT, WATT, and PA indicators, the combined network outperforms the HSR network by 46.53%, 47.69%, and 49.23%, respectively, and the airline network by 15.49%, 13.17%, and 75.45%, respectively. In addition, the combined network shows a more equitable distribution of accessibility than that of the HSR network.