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Evaluation of railway traffic control efficiency and its determinants

Bart Roets (UGent) and Johan Christiaens (UGent)
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Abstract
The present paper fills a gap in the literature by examining the efficiency of railway traffic control. In spite of large-scale migration strategies towards centralised signal boxes (traffic control centres), railway traffic control still remains a labour-intensive process in many European countries. In close collaboration with experts from Infrabel, the Belgian railway infrastructure manager, we develop a two-stage benchmarking framework which assesses and explains railway traffic control efficiency. In the first stage, a bootstrapped Data Envelopment Analysis model with categorical variable assesses efficiency, and closely monitors average and individual performance trends over time. Second-stage regressions examine the impact of several factors on efficiency. The proposed framework can be adopted by infrastructure managers as an internal benchmarking tool, evaluating the entire network or specific sub-regions. We demonstrate the practical applicability of our approach with a unique and rich 18-month dataset of Infrabel’s relay-technology signal boxes. Aiming to uncover additional insights, we perform our analysis on two subsets of the monthly data: one covering the working week, the other the weekends. Our findings suggest that in order to improve on traffic control efficiency, railway infrastructure managers should aim for geographical concentration, larger team sizes, and a continuous follow-up of signal box opening times. Further efficiency gains can be generated by reducing infrastructure complexity. Finally, our results also indicate that railway infrastructure managers should take into account the differences between working week and weekend when measuring and analysing traffic control performance.
Keywords
Railway infrastructure, data envelopment analysis, traffic control, DATA ENVELOPMENT ANALYSIS, PANEL-DATA, CATEGORICAL VARIABLES, MODELS, COST, PERFORMANCE, INFERENCE, AIR, DEA

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Citation

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MLA
Roets, Bart, and Johan Christiaens. “Evaluation of Railway Traffic Control Efficiency and Its Determinants.” EUROPEAN JOURNAL OF TRANSPORT AND INFRASTRUCTURE RESEARCH 15.4 (2015): 396–418. Print.
APA
Roets, B., & Christiaens, J. (2015). Evaluation of railway traffic control efficiency and its determinants. EUROPEAN JOURNAL OF TRANSPORT AND INFRASTRUCTURE RESEARCH, 15(4), 396–418.
Chicago author-date
Roets, Bart, and Johan Christiaens. 2015. “Evaluation of Railway Traffic Control Efficiency and Its Determinants.” European Journal of Transport and Infrastructure Research 15 (4): 396–418.
Chicago author-date (all authors)
Roets, Bart, and Johan Christiaens. 2015. “Evaluation of Railway Traffic Control Efficiency and Its Determinants.” European Journal of Transport and Infrastructure Research 15 (4): 396–418.
Vancouver
1.
Roets B, Christiaens J. Evaluation of railway traffic control efficiency and its determinants. EUROPEAN JOURNAL OF TRANSPORT AND INFRASTRUCTURE RESEARCH. 2015;15(4):396–418.
IEEE
[1]
B. Roets and J. Christiaens, “Evaluation of railway traffic control efficiency and its determinants,” EUROPEAN JOURNAL OF TRANSPORT AND INFRASTRUCTURE RESEARCH, vol. 15, no. 4, pp. 396–418, 2015.
@article{7079163,
  abstract     = {The present paper fills a gap in the literature by examining the efficiency of railway traffic control. In spite of large-scale migration strategies towards centralised signal boxes (traffic control centres), railway traffic control still remains a labour-intensive process in many European countries. In close collaboration with experts from Infrabel, the Belgian railway infrastructure manager, we develop a two-stage benchmarking framework which assesses and explains railway traffic control efficiency. In the first stage, a bootstrapped Data Envelopment Analysis model with categorical variable assesses efficiency, and closely monitors average and individual performance trends over time. Second-stage regressions examine the impact of several factors on efficiency. The proposed framework can be adopted by infrastructure managers as an internal benchmarking tool, evaluating the entire network or specific sub-regions. We demonstrate the practical applicability of our approach with a unique and rich 18-month dataset of Infrabel’s relay-technology signal boxes. Aiming to uncover additional insights, we perform our analysis on two subsets of the monthly data: one covering the working week, the other the weekends. Our findings suggest that in order to improve on traffic control efficiency, railway infrastructure managers should aim for geographical concentration, larger team sizes, and a continuous follow-up of signal box opening times. Further efficiency gains can be generated by reducing infrastructure complexity. Finally, our results also indicate that railway infrastructure managers should take into account the differences between working week and weekend when measuring and analysing traffic control performance.},
  author       = {Roets, Bart and Christiaens, Johan},
  issn         = {1567-7133},
  journal      = {EUROPEAN JOURNAL OF TRANSPORT AND INFRASTRUCTURE RESEARCH},
  keywords     = {Railway infrastructure,data envelopment analysis,traffic control,DATA ENVELOPMENT ANALYSIS,PANEL-DATA,CATEGORICAL VARIABLES,MODELS,COST,PERFORMANCE,INFERENCE,AIR,DEA},
  language     = {eng},
  number       = {4},
  pages        = {396--418},
  title        = {Evaluation of railway traffic control efficiency and its determinants},
  volume       = {15},
  year         = {2015},
}

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