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Open Access
Article
Publication date: 1 February 2021

Haiyang Guo, Yun Bai, Qianyun Hu, Huangrui Zhuang and Xujie Feng

To evacuate passengers arriving at intercity railway stations efficiently, metros and intercity railways usually share the same station or have stations close to each other. When…

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Abstract

Purpose

To evacuate passengers arriving at intercity railway stations efficiently, metros and intercity railways usually share the same station or have stations close to each other. When intercity trains arrive intensively, a great number of passengers will burst into the metro station connecting with the intercity railway station within a short period, while the number of passengers will decrease substantially when intercity trains arrive sparsely. The metro timetables with regular headway currently adopted in real-world operations cannot handle the injected passenger demand properly. Timetable optimization of metro lines connecting with intercity railway stations is essential to improve service quality.

Design/methodology/approach

Based on arrival times of intercity trains and the entire process for passengers transferring from railway to metro, this paper develops a mathematical model to characterize the time-varying demand of passengers arriving at the platform of a metro station connecting with an intercity railway station. Provided the time-varying passenger demand and capacity of metro trains, a timetable model to optimize train departure time of a bi-direction metro line where an intermediate station connects with an intercity railway station is proposed. The objective is to minimize waiting time of passengers at the connecting station. The proposed timetable model is solved by an adaptive large neighborhood search algorithm.

Findings

Real-world case studies show that the prediction accuracy of the proposed model on passenger demand at the connecting station is higher than 90%, and the timetable model can reduce waiting time of passengers at the connecting station by 28.47% which is increased by 5% approximately than the calculation results of the generic algorithm.

Originality/value

This paper puts forward a model to predict the number of passengers arriving at the platform of connection stations via analyzing the entire process for passengers transferring from intercity trains to metros. Also, a timetable optimization model aiming at minimizing passenger waiting time of a metro line where an intermediate station is connected to an intercity railway station is proposed.

Details

Smart and Resilient Transportation, vol. 3 no. 1
Type: Research Article
ISSN: 2632-0487

Keywords

Article
Publication date: 28 March 2023

Guang-Zhi Zeng, Zhi-Wei Li, Sha Huang and Zheng-Wei Chen

Based on the aerodynamic loads and dynamic performances of trains, this study aims to investigate the effect of crosswinds and raindrops on intercity trains operating on viaducts…

Abstract

Purpose

Based on the aerodynamic loads and dynamic performances of trains, this study aims to investigate the effect of crosswinds and raindrops on intercity trains operating on viaducts to ensure the safe operation of intercity railways in metropolitan areas.

Design/methodology/approach

An approach coupled with the Euler multiphase model as well as the standard k-ɛ turbulence model is used to investigate the coupled flow feature surrounding trains and viaducts, including airflow and raindrops, and the numerical results are validated with those of the wind tunnel test. Additionally, the train’s dynamic response and the operating safety region in different crosswind speeds and rainfall is investigated based on train’s aerodynamic loads and the train wheel–rail dynamics simulation.

Findings

The aerodynamic loads of trains at varying running speeds exhibit an increasing trend as the increase of wind speed and rainfall intensity. The motion of raindrop particles demonstrates a significant similarity with the airflow in wind and rain environments, as a result of the dominance of airflow and the supplementary impacts of droplets. As the train’s operating speed ranged between 120 and 200 km/h and within a rainfall range of 20–100 mm/h, the safe operating region of trains decreased by 0.56%–7.03%, compared with the no-rain condition (0 mm/h).

Originality/value

The impact of crosswind speeds and rainfall on the train’s aerodynamic safety is studied, including the flow feature of crosswind and different particle-sized raindrops around the train and viaduct, aerodynamic loads coefficients suffered by the intercity train as well as the operating safety region of intercity trains on the viaduct.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 33 no. 4
Type: Research Article
ISSN: 0961-5539

Keywords

Abstract

Details

Chinese Railways in the Era of High-Speed
Type: Book
ISBN: 978-1-78441-984-4

Article
Publication date: 1 January 1971

On the day Apollo XI was launched to the moon, passengers on the Spirit of St. Louis sat down on the track in front of the locomotive until the train's air‐conditioning was…

Abstract

On the day Apollo XI was launched to the moon, passengers on the Spirit of St. Louis sat down on the track in front of the locomotive until the train's air‐conditioning was repaired.

Details

Industrial Management, vol. 71 no. 1
Type: Research Article
ISSN: 0007-6929

Open Access
Article
Publication date: 4 August 2021

Zhipeng Zhang, Xiang Liu and Hao Hu

At the US passenger stations, train operations approaching terminating tracks rely on the engineer’s compliant behavior to safely stop before the end of the tracks. Noncompliance…

1688

Abstract

Purpose

At the US passenger stations, train operations approaching terminating tracks rely on the engineer’s compliant behavior to safely stop before the end of the tracks. Noncompliance actions from the disengaged or inattentive engineers would result in hazards to train passengers, train crewmembers and bystanders at passenger stations. Over the past decade, a series of end-of-track collisions occurred at passenger stations with substantial property damage and casualties. This study’s developed systemic model and discussions present policymakers, railway practitioners and academic researchers with a flexible approach for qualitatively assessing railroad safety.

Design/methodology/approach

To achieve a system-based, micro-level analysis of end-of-track accidents and eventually promote the safety level of passenger stations, the systems-theoretic accident modeling and processes (STAMP), as a practical systematic accident model widely used in the complex systems, is developed in view of environmental factors, human errors, organizational factors and mechanical failures in this complex socio-technical system.

Findings

The developed STAMP accident model and analytical results qualitatively provide an explicit understanding of the system hazards, constraints and hierarchical control structure of train operations on terminating tracks in the US passenger stations. Furthermore, the safety recommendations and practical options related to obstructive sleep apnea screening, positive train control-based collision avoidance mechanisms, robust system safety program plans and bumping posts are proposed and evaluated using the STAMP approach.

Originality/value

The findings from STAMP-based analysis can serve as valid references for policymakers, government accident investigators, railway practitioners and academic researchers. Ultimately, they can contribute to establishing effective emergent measures for train operations at passenger stations and promote the level of safety necessary to protect the public. The STAMP approach could be adapted to analyze various other rail safety systems that aim to ultimately improve the safety level of railroad systems.

Details

Smart and Resilient Transportation, vol. 3 no. 2
Type: Research Article
ISSN: 2632-0487

Keywords

Abstract

Details

Handbook of Transport Systems and Traffic Control
Type: Book
ISBN: 978-1-61-583246-0

Book part
Publication date: 7 October 2015

Abstract

Details

Chinese Railways in the Era of High-Speed
Type: Book
ISBN: 978-1-78441-984-4

Article
Publication date: 1 December 1996

Nathalie N. Mitev

Presents part of ongoing research into French Railways (SNCF) and the introduction of Socrate, a computerized reservation and ticketing system. SNCF bought Sabre from American…

3003

Abstract

Presents part of ongoing research into French Railways (SNCF) and the introduction of Socrate, a computerized reservation and ticketing system. SNCF bought Sabre from American Airlines in order to build Socrate; one of its aims was to transform commercial activities through the instigation of a new philosophy of selling, based on a technological investment, importing techniques, such as yield management, used in the airline industry. Seeks to understand the links between the strategic and political aims and the technical choices, as well as how actors interpret and appropriate technical tools. Argues that Socrate is an integral part of the problematic adoption of a new rail transport model based on the deregulated airline industry.

Details

Information Technology & People, vol. 9 no. 4
Type: Research Article
ISSN: 0959-3845

Keywords

Abstract

Details

Strategic Airport Planning
Type: Book
ISBN: 978-0-58-547441-0

Open Access
Article
Publication date: 14 March 2016

Aristotelis Naniopoulos, Panagiotis Tsalis and Dimitrios Nalmpantis

The purpose of this paper is to develop accessible tourism in two areas of Greece and Turkey. The areas of Drama in Greece and Mersin in Turkey have cooperated in the frame of…

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Abstract

Purpose

The purpose of this paper is to develop accessible tourism in two areas of Greece and Turkey. The areas of Drama in Greece and Mersin in Turkey have cooperated in the frame of MEDRA project to assess their potential and set up a plan for developing accessible tourism.

Design/methodology/approach

The choice of the two areas was not random. Mersin currently enjoys continuous development, as one of Turkey’s biggest ports and a free trade zone. Drama is a developing area in agricultural manufacturing and high-tech sectors with a rich physical environment which aspires to develop a healthy alternative tourism industry.

Findings

The findings include, amongst others, the identification of needs of tourists with disabilities, and the relevant historical evolution, legislative framework, international good practices, policy-improvement proposals, accessibility assessment in Mersin and Drama, and suggestions for developing accessible infrastructure together with the training of stakeholders.

Practical/implications

Greece although made a lot of progress regarding the issues of disability and accessibility still is not on the same level as many European countries, while Turkey has a lot to learn in order to deal with accessibility from a holistic point of view.

Social/implications

Both countries owe a large percentage of their national income, to the tourist industry and seek ways to gain advantages in this highly competitive sector.

Originality/value

The successful implementation of the MEDRA project constitutes an example worthy of a wider application in the development of accessible tourism, not only in the two countries but also to countries with similar characteristics.

Details

Journal of Tourism Futures, vol. 2 no. 1
Type: Research Article
ISSN: 2055-5911

Keywords

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