Search results

1 – 10 of over 10000
Content available
Article
Publication date: 2 December 2020

Zhe Zhang, Limin Jia and Yong Qin

This paper aims to investigate the reliability, availability, maintenance and safety analysis method for railway network operation.

Abstract

Purpose

This paper aims to investigate the reliability, availability, maintenance and safety analysis method for railway network operation.

Design/methodology/approach

The reliability of the railway network is proposed based on the accident frequency and the topology of the railway network. Network efficiency and capacity are proposed to evaluate the availability of the railway network. The maintenance of the railway network is analyzed from the perspective of accident recovery time. The safety index of the railway network is proposed to measure the safety of railway stations and sections and the K-means method is proposed to find the safety critical stations and sections. Finally, the effectiveness of the proposed method is illustrated through a real-world case study.

Findings

The case study shows that the proposed model can produce a big-picture averaged view of the network-wide safety level and help us identify the safety critical stations and sections by considering both the expected reduction of network efficiency and capacity.

Practical implications

The potential application of the proposed model is to help the safety managers determine the investments in safety management of each section and station and then increase the safety and robustness of railway network operation.

Originality/value

The safety analysis of the railway network should consider the reliability, availability and maintenance of the railway network. In this paper, the reliability of the railway network is proposed based on the accident frequency and the topology of the railway network. Network efficiency and capacity are proposed to evaluate the availability of the railway network. The maintenance of the railway network is analyzed from the perspective of recovery time. Finally, the safety index of the railway network is proposed to analyze the safety critical stations and sections.

Details

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

Keywords

Content available
Article
Publication date: 28 July 2020

Lijuan Shi, Zuoning Jia, Huize Sun, Mingshu Tian and Liquan Chen

This paper aims to study the affecting factors on bird nesting on electronic railway catenary lines and the impact of bird nesting events on railway operation.

Abstract

Purpose

This paper aims to study the affecting factors on bird nesting on electronic railway catenary lines and the impact of bird nesting events on railway operation.

Design/methodology/approach

First, with one year’s bird nest events in the form of unstructured natural language collected from Shanghai Railway Bureau, the records were structured with the help of python software tool. Second, the method of root cause analysis (RCA) was used to identify all the possible influencing factors which are inclined to affect the probability of bird nesting. Third, the possible factors then were classified into two categories to meet subsequent analysis separately, category one was outside factors (i.e. geographic conditions related factors), the other was inside factors (i.e. railway related factors).

Findings

It was observed that factors of city population, geographic position affect nesting observably. Then it was demonstrated that both location and nesting on equipment part have no correlation with delay, while railway type had a significant but low correlation with delay.

Originality/value

This paper discloses the principle of impacts of nest events on railway operation.

Details

Smart and Resilient Transport, vol. 2 no. 1
Type: Research Article
ISSN: 2632-0487

Keywords

Content available
Article
Publication date: 26 August 2021

Yuqing Ji, Dongxiu Ou, Lei Zhang, Chenkai Tang and Visarut Phichitthanaset

When a railway emergency occurs, it often leads to unexpected consequences, especially for trains of higher speed and larger passenger flow. Therefore, the railway

Abstract

Purpose

When a railway emergency occurs, it often leads to unexpected consequences, especially for trains of higher speed and larger passenger flow. Therefore, the railway emergency plan, a pre-established plan to deal with emergencies, plays an important role in reducing injuries and losses. However, the existing railway emergency plans remain as plain-text documents, requiring lots of manual work to capture the important regulations. This paper aims to propose a visualized, formal and digital railway emergency plan modeling method based on hierarchical timed Petri net (HTPN), which is also of better interpretability.

Design/methodology/approach

First, the general railway emergency plan was analyzed. Second, the HTPN-based framework model for the general railway emergency plan was proposed. Then, the instantiated model of electric multiple units rescue emergency plan was built by ExSpect, a Petri net simulation tool.

Findings

The experiments show that the proposed model is more digital and of better readability, visualization and performability, and, meanwhile, can generally conform to the practice well, offering a promising reference for future analysis of the optimization of railway emergency plans.

Originality/value

This study offers a promising reference for future analysis of the optimization of railway emergency plans.

Details

Smart and Resilient Transport, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2632-0487

Keywords

To view the access options for this content please click here
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

To view the access options for this content please click here
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

To view the access options for this content please click here

Abstract

Details

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

To view the access options for this content please click here
Book part
Publication date: 14 September 2007

Chris Nash and Andrew Smith

Abstract

Details

Handbook of Transport Modelling
Type: Book
ISBN: 978-0-08-045376-7

To view the access options for this content please click here
Book part
Publication date: 1 November 2008

Carlo Ciccarelli and Stefano Fenoaltea

This article presents estimates of social-overhead construction in Italy's regions. The new-construction series point to a largely common cycle in non-railway work, and…

Abstract

This article presents estimates of social-overhead construction in Italy's regions. The new-construction series point to a largely common cycle in non-railway work, and largely idiosyncratic bursts of railway building. Maintenance doubles as an index of the underlying stock, which cannot be calculated from the flows alone; one finds limited convergence, and only in railway infrastructure. Industrial and overall growth are increasingly correlated both with the initial stock, and with its increment. Direct measures of welfare improvements are uncertain, but the relative increases in draftees’ mean heights correlate in particular with social-overhead investment.

Details

Research in Economic History
Type: Book
ISBN: 978-1-84855-337-8

Content available
Article
Publication date: 7 April 2021

Leyi Cheng, Yinghan Wang and Yichuan Peng

The causes of high-speed railway failures are complex, and it is difficult to quantitatively and accurately describe safety evaluation. The purpose of this paper is to…

Abstract

Purpose

The causes of high-speed railway failures are complex, and it is difficult to quantitatively and accurately describe safety evaluation. The purpose of this paper is to construct a model to ensure the safety of high-speed railway operations.

Design/methodology/approach

The authors construct a high-speed railway operation safety evaluation index system from four aspects: personnel, equipment, environment and management and analyze the inter-coupling relationship of various safety factors. Based on the evaluation index system, the use of network analytic hierarchy process (ANP) and fuzzy comprehensive evaluation will be used to establish a high-speed railway operation safety evaluation model.

Findings

Through the literature investigation and field investigation, combined with high-speed railway safety key points and system composition, 4 first-level indicators and 17 second-level indicators were selected to construct a high-speed railway operation safety evaluation index system. It can be seen from the results that the personnel management system and the signal and control system have the largest weight.

Originality/value

On the basis of establishing an evaluation index system, comprehensively considering the internal coupling relationship between evaluation indexes and the fuzziness of high-speed railway operation safety evaluation, high-speed railway uses ANP fuzzy network analysis method to construct high-speed railway operation, and the safety evaluation model has certain advantages and practicability in the case of the relative lack of high-speed railway operation data and fault data.

Details

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

Keywords

To view the access options for this content please click here

Abstract

Details

Funding Transport Systems
Type: Book
ISBN: 978-0-08-043071-3

1 – 10 of over 10000