Journal of Rail Transport Planning & Management最新文献

A new approach to identify critical causal factors and evaluate intervention strategies for mitigating major railway occurrences in Taiwan

IF 2.6

Journal of Rail Transport Planning & Management Pub Date : 2025-02-14 DOI: 10.1016/j.jrtpm.2025.100507

Yannian Lee

{"title":"A new approach to identify critical causal factors and evaluate intervention strategies for mitigating major railway occurrences in Taiwan","authors":"Yannian Lee","doi":"10.1016/j.jrtpm.2025.100507","DOIUrl":"10.1016/j.jrtpm.2025.100507","url":null,"abstract":"<div><div>Following two consecutive catastrophic railway accidents in Taiwan, public safety concern has been raised in railway transportation services. To improve train operation safety, this study integrates the Human Factors Analysis and Classification System (HFACS), Fuzzy Logic Modeling (FLM) method, and Human Factors Intervention Matrix (HFIX) to develop a safety assessment framework. Twenty eight major railway occurrence investigation reports published by the Taiwan Transportation Safety Board are collected for data extraction. Using the HFACS, causal factors causing major railway occurrences are first classified, followed by critical causal factors identification through FLM method. The HFIX is applied to categorized safety recommendations which were issued based on the identified causal factors of occurrence investigations and pair the results with critical causal factors for accident rate evaluations and effectiveness assessment. The evaluations reveal that the statistical accident rate in 2023 was higher than the predicted accident rate. The results also reveal that mitigating the frequency of identified causal factors is more efficient for occurrences reduction than through safety recommendations enforcement. Therefore, decision makers can determine the best intervention strategies based on available resources and develop relevant countermeasures for implementation.</div></div>","PeriodicalId":51821,"journal":{"name":"Journal of Rail Transport Planning & Management","volume":"33 ","pages":"Article 100507"},"PeriodicalIF":2.6,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143402937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Capacity evaluation of ERTMS/ETCS HTD and moving block

IF 2.6

Journal of Rail Transport Planning & Management Pub Date : 2025-02-03 DOI: 10.1016/j.jrtpm.2025.100506

Daniel Knutsen , Nils O.E. Olsson , Jiali Fu , Tomas Rosberg

{"title":"Capacity evaluation of ERTMS/ETCS HTD and moving block","authors":"Daniel Knutsen , Nils O.E. Olsson , Jiali Fu , Tomas Rosberg","doi":"10.1016/j.jrtpm.2025.100506","DOIUrl":"10.1016/j.jrtpm.2025.100506","url":null,"abstract":"<div><div>This paper compares the capacity effect of different implementations of ERTMS/ETCS (European Rail Traffic Management System/The European Train Control System): Hybrid Train Detection (HTD) and moving block. This is done both on a conceptual level by looking at a scenario involving two trains, and for a simulated network. The effects are studied by modelling HTD and moving block in the simulation tool RailSys, looking at the performance indicators related to capacity: headway, capacity utilisation, and punctuality. The model uses existing infrastructure and a complete timetable. The results of the scenario with two trains show that similar results on headway can be achieved with HTD compared to moving block This is true even with relatively long virtual blocks of 500 m. The results from the simulated network show that various shares of trains with train integrity, as well as moving block, have a minor effect on the performance indicator punctuality. Moving block gives some improvements on capacity utilisation compared to HTD. However, by implementing shorter virtual blocks at sections of lower speed, it is possible to achieve results on capacity utilisation like that engendered by moving block.</div></div>","PeriodicalId":51821,"journal":{"name":"Journal of Rail Transport Planning & Management","volume":"33 ","pages":"Article 100506"},"PeriodicalIF":2.6,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143146655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Using Time Signal at Red (TSAR) as a tool for analysing rail network performance

IF 2.6

Journal of Rail Transport Planning & Management Pub Date : 2025-01-31 DOI: 10.1016/j.jrtpm.2025.100505

Anirban Bhattacharyya , Matthew Forshaw , David Golightly , Seb Merricks , Roberto Palacin , Ken Pierce , Pedro Pinto da Silva

{"title":"Using Time Signal at Red (TSAR) as a tool for analysing rail network performance","authors":"Anirban Bhattacharyya , Matthew Forshaw , David Golightly , Seb Merricks , Roberto Palacin , Ken Pierce , Pedro Pinto da Silva","doi":"10.1016/j.jrtpm.2025.100505","DOIUrl":"10.1016/j.jrtpm.2025.100505","url":null,"abstract":"<div><div>Reactionary delays can adversely impact train service performance. This is particularly true for parts of the rail network at or near capacity. To detect the causes of such delays, a metric with a granularity smaller than those of typical rail delay metrics is required. We present an approach based on the Time Signal at Red (TSAR) metric. The purpose of TSAR is to measure the duration a berth is continuously occupied by a train or reserved, which is closely related to information regarding the red aspect of the berth signal at an entrance to the berth. Thus, TSAR provides a low-level metric to measure individual service and berth performance, and to observe system effects that reflect reactionary delay. The paper defines TSAR and describes a data processing methodology to extract TSAR and signal aspect on berth entry from disparate data sources. The use of TSAR is demonstrated for a case study area – comparing different service patterns, identifying patterns of reactionary delay, and showing the impact of adhesion at different times of year. The implications of TSAR are discussed, including its utility for applications such as analysis of simulated network performance.</div></div>","PeriodicalId":51821,"journal":{"name":"Journal of Rail Transport Planning & Management","volume":"33 ","pages":"Article 100505"},"PeriodicalIF":2.6,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143146654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Demand-based capacity assessment using mixed integer programming

IF 2.6

Journal of Rail Transport Planning & Management Pub Date : 2025-01-15 DOI: 10.1016/j.jrtpm.2024.100502

Christopher Szymula, Nikola Bešinović, Karl Nachtigall

{"title":"Demand-based capacity assessment using mixed integer programming","authors":"Christopher Szymula, Nikola Bešinović, Karl Nachtigall","doi":"10.1016/j.jrtpm.2024.100502","DOIUrl":"10.1016/j.jrtpm.2024.100502","url":null,"abstract":"<div><div>Understanding railway network capacity and potential reserves proves crucial for optimal planning decisions, which are required due to the high utilization of European railway networks and the intended future modal shift to rail. Capacity reserves emerge where the network structure does not match the demand. We propose a mixed integer program (MIP) for investigating the demand-based capacity reserves in the network. Extending the MIP-based railway network utilization model by adding demand structures, our model allows to optimize the train ordering and the locations of trains in the network, whilst regarding for the traffic demand to be served. The infrastructure is mesoscopically modelled by the individual blocks of the railway system. The demand is represented by a corresponding line plan and its given frequencies. The model determines the interrelations of demand and network capacity and thus allows to investigate between transport demand and network infrastructure. We test the proposed model on different artificial networks and a case study. In particular, the results show clear capacity effects of mismatched infrastructural demand and supply. It is thereby shown, that the efficient use of network capacity depends on the fit between demand and network structure. Furthermore, we can see that the emergent utilization behaviour is network specific and often non-linear, which strengthens the necessity of network approaches for global capacity assessment. Also providing support to other fields such as urban planning, the models incorporation to integrated and interdisciplinary planning approaches is left for future research.</div></div>","PeriodicalId":51821,"journal":{"name":"Journal of Rail Transport Planning & Management","volume":"33 ","pages":"Article 100502"},"PeriodicalIF":2.6,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143146653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing railway operational safety: A quantitative risk assessment of signals passed at danger

IF 2.6

Journal of Rail Transport Planning & Management Pub Date : 2025-01-13 DOI: 10.1016/j.jrtpm.2025.100504

Miguel I. Grilo, Gonçalo F. Neves, Guilherme Ribeiro, Virgínia Infante, António R. Andrade

{"title":"Enhancing railway operational safety: A quantitative risk assessment of signals passed at danger","authors":"Miguel I. Grilo, Gonçalo F. Neves, Guilherme Ribeiro, Virgínia Infante, António R. Andrade","doi":"10.1016/j.jrtpm.2025.100504","DOIUrl":"10.1016/j.jrtpm.2025.100504","url":null,"abstract":"<div><div>Unauthorized ‘Signals Passed At Danger’ (SPADs) are common accident precursors in the Portuguese railways. Critical events in the past highlight the need to assess the risk posed by SPADs. This study proposes a quantitative risk assessment of SPADs in Portugal as a decision support tool, utilizing a three-step procedure, and data from 2016 to 2021. The first step involves statistically modeling the SPAD frequency, including the spatio-temporal and operational factors using Generalized Linear Models, such as Binomial and Poisson regressions. The Binomial models exhibit the best goodness-of-fit statistics. The second step involves statistically modeling the severity of SPADs and creating a severity prediction model based on incident-related data, with Ordinal and Multinomial models compared for prediction performance. Finally, the risk is assessed by estimating the cost magnitude for one year. Additionally, the influence of the Automatic Train Protection (ATP) system on SPAD risk is evaluated. The findings suggest that a fully operational ATP system could further reduce SPAD risk by 19%. This study highlights the importance of considering SPAD risk for safe and efficient railway operations. The results of this risk assessment can support decision-makers in prioritizing prevention and mitigation measures to improve railway operational safety.</div></div>","PeriodicalId":51821,"journal":{"name":"Journal of Rail Transport Planning & Management","volume":"33 ","pages":"Article 100504"},"PeriodicalIF":2.6,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143147550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization of sea-rail intermodal container collection and distribution under novel port layout

IF 2.6

Journal of Rail Transport Planning & Management Pub Date : 2025-01-07 DOI: 10.1016/j.jrtpm.2024.100503

Shengzhong Ji, Mingjun Ji, Zhendi Gao, Lingrui Kong, Jialu Ji

{"title":"Optimization of sea-rail intermodal container collection and distribution under novel port layout","authors":"Shengzhong Ji, Mingjun Ji, Zhendi Gao, Lingrui Kong, Jialu Ji","doi":"10.1016/j.jrtpm.2024.100503","DOIUrl":"10.1016/j.jrtpm.2024.100503","url":null,"abstract":"<div><div>This paper investigates the optimization problem of sea-rail intermodal container collection and distribution operations under novel port layout where railway lines extend to the quayside. It integrates optimization train scheduling and container transshipment to enhance temporal and spatial coordination between trains and vessels. The objectives include maximizing the ratio of direct transshipment of import/export containers and minimizing the total operational time of trains at the quayside operational area. A nonlinear mixed-integer bi-objective optimization model is constructed and linearized for compatibility with commercial solvers. Different instance sizes have been analyzed and validated, demonstrating the model’s efficiency with average direct transshipment ratios exceeding 85.47%. Furthermore, the rational allocation of mechanical equipment, such as rail-mounted gantry and quay cranes, can maximize direct transfer rates and avoid resource wastage. The optimization method proposed in this paper not only reduces port operational costs but also offers valuable insights for port layout planning.</div></div>","PeriodicalId":51821,"journal":{"name":"Journal of Rail Transport Planning & Management","volume":"33 ","pages":"Article 100503"},"PeriodicalIF":2.6,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143146651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Integrating AI and edge computing for advanced safety at railroad grade crossings

IF 2.6

Journal of Rail Transport Planning & Management Pub Date : 2024-12-24 DOI: 10.1016/j.jrtpm.2024.100501

A.L. Amin , Deo Chimba , Kamrul Hasan

{"title":"Integrating AI and edge computing for advanced safety at railroad grade crossings","authors":"A.L. Amin , Deo Chimba , Kamrul Hasan","doi":"10.1016/j.jrtpm.2024.100501","DOIUrl":"10.1016/j.jrtpm.2024.100501","url":null,"abstract":"<div><div>The integration of artificial intelligence (AI) and machine learning (ML) into the Railroad High-Grade Crossing (RHGC) systems represents a significant milestone in enhancing both safety and operational efficiency. The fusion of various technologies enables the seamless integration of real-time identification, accurate forecasting, and prompt reaction to pivotal traffic situations. This research introduces a state-of-the-art architecture based on edge cloud technology. It integrates advanced computer vision algorithms for object detection and segmentation with a custom dataset for RHGC safety. In the proposed novel framework, we utilize a Weighted box- Fusion (WBF) ensemble approach, integrating diverse object detection algorithms, such as YOLOv8M (medium), YOLOv8L (Large), and YOLOv8X (extra-large), to enhance the detection of safety measures at RHGCs objects. Moreover, we incorporate a UNet segmentation model to identify trains approaching the RHGCs. The amalgamation of these methodologies leads to a fully automated, AI-driven safety mechanism for RHGC. The edge-cloud architecture is employed, with surveillance cameras linked directly to an edge server strategically positioned at grade crossings. This arrangement facilitates real-time data processing, ensuring efficient bandwidth usage and minimal latency by relaying only the necessary processed information to the cloud. Our ensemble model demonstrated an impressive precision rate of 97%, with the segmentation model achieving a higher rate of 98%. This system establishes a novel standard within the discipline, amalgamating artificial intelligence, edge computing, and cloud technology to significantly augment safety and efficiency at grade crossings.</div></div>","PeriodicalId":51821,"journal":{"name":"Journal of Rail Transport Planning & Management","volume":"33 ","pages":"Article 100501"},"PeriodicalIF":2.6,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143146650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Integrated optimization of energy-efficient train timetable and rolling stock circulation plan with regenerative energy utilization

IF 2.6

Journal of Rail Transport Planning & Management Pub Date : 2024-12-24 DOI: 10.1016/j.jrtpm.2024.100499

Songwei Zhu , Yihui Wang , Guodong Wei , Yi Zheng , Datian Zhou , Nikola Bes̆inović

{"title":"Integrated optimization of energy-efficient train timetable and rolling stock circulation plan with regenerative energy utilization","authors":"Songwei Zhu , Yihui Wang , Guodong Wei , Yi Zheng , Datian Zhou , Nikola Bes̆inović","doi":"10.1016/j.jrtpm.2024.100499","DOIUrl":"10.1016/j.jrtpm.2024.100499","url":null,"abstract":"<div><div>With the running and dwell levels considered, we investigate the integrated energy-efficient train timetabling and rolling stock circulation planning problem for a metro line, where the passenger demand is considered via the service pattern. A mixed integer non-linear programming model is proposed to minimize the headway variations, headway deviations, the number of required rolling stocks, and the net energy consumption. Specifically, the regenerative energy utilization is considered by the brake-traction overlapping times. After linearization, the energy-efficient timetabling problem can be solved by existing solvers. A two-step method is presented to enhance the computational efficiency. In the first step, the arrival times of train services at the first station are determined. In the second step, the timetable and rolling stock circulation plan are optimized according to the given arrival times at the first station. Two case studies with different service patterns are conducted based on the data of Beijing Yizhuang metro line. The computational results demonstrate that the two-step method can reduce the optimality gap sharply. Compared with the energy-efficient model without the consideration of regenerative energy utilization, the regenerative energy utilization of the model with regenerative energy utilization considered increases 25.64% and 35.95% in the two test cases, respectively.</div></div>","PeriodicalId":51821,"journal":{"name":"Journal of Rail Transport Planning & Management","volume":"33 ","pages":"Article 100499"},"PeriodicalIF":2.6,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143146652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Introducing the concept of grades of automation for shunting operations

IF 2.6

Journal of Rail Transport Planning & Management Pub Date : 2024-12-20 DOI: 10.1016/j.jrtpm.2024.100500

Matthias Reichmann , Gabriel Stephan Himmelbauer , Adrian Wagner , Jürgen Zajicek , Burkhard Stadlmann , Herbert Wancura , Nikolaus Furian , Siegfried Vössner

{"title":"Introducing the concept of grades of automation for shunting operations","authors":"Matthias Reichmann , Gabriel Stephan Himmelbauer , Adrian Wagner , Jürgen Zajicek , Burkhard Stadlmann , Herbert Wancura , Nikolaus Furian , Siegfried Vössner","doi":"10.1016/j.jrtpm.2024.100500","DOIUrl":"10.1016/j.jrtpm.2024.100500","url":null,"abstract":"<div><div>In Europe political decisions have been made to shift freight traffic from roads to railways, triggering substantial efforts to digitize and automate processes in the rail freight domain. As currently, only automation taxonomies for driving in rail networks exist, this paper provides a taxonomy for operations in so-called marshaling yards. Marshaling yards are critical nodes in the rail freight network, where the wagons of arriving trains are separated and are distributed to outgoing trains. Using the Design Science Research Cycles of Hevner to ensure a transparent procedure, this work develops Grades of Automation for Shunting Operations. The key outcome is a systematic classification together with a pictorial representation of these Grades of Automation, providing an overview of basic Shunting Operations and their functional realizations. This taxonomy facilitates a comparison of automation levels across different marshaling yards, aiding rail freight undertakings in planning efficient transport routes within the rail freight network.</div></div>","PeriodicalId":51821,"journal":{"name":"Journal of Rail Transport Planning & Management","volume":"33 ","pages":"Article 100500"},"PeriodicalIF":2.6,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143146649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A study on sorting strategies in marshaling yards with a limited number of tracks and track capacity

IF 2.6

Journal of Rail Transport Planning & Management Pub Date : 2024-12-17 DOI: 10.1016/j.jrtpm.2024.100498

Max Zien , Thomas Kirschstein , Christian Bierwirth

{"title":"A study on sorting strategies in marshaling yards with a limited number of tracks and track capacity","authors":"Max Zien , Thomas Kirschstein , Christian Bierwirth","doi":"10.1016/j.jrtpm.2024.100498","DOIUrl":"10.1016/j.jrtpm.2024.100498","url":null,"abstract":"<div><div>In marshaling yards, freight wagons are sorted from inbound trains to outbound trains for further transport. To organize an efficient shunting process, sorting strategies are proposed in the literature. The application of sorting strategies is generally restricted by the number of classification tracks and their lengths. This can lead to difficult-to-implement or even inoperative sorting plans. To handle limited track capacity, we decompose the shunting process into a series of consecutive periods of time resembling timetables of inbound trains. A heuristic is used in every period to decide on the postponement of inbound trains when track capacity is scarce. This way, sorting strategies become applicable on a rolling time basis. A strategy is said to solve a shunting task when it enables building all outbound trains within a given time horizon. We examine the performance of five well-known sorting strategies for a large set of shunting tasks within a computational study. The simulation results indicate that the sorting strategies perform differently when numbers and lengths of classification tracks vary. In conclusion, we are able to determine the most reliable strategy among the set of considered sorting strategies for a marshaling yard of a certain size.</div></div>","PeriodicalId":51821,"journal":{"name":"Journal of Rail Transport Planning & Management","volume":"33 ","pages":"Article 100498"},"PeriodicalIF":2.6,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143146648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0