Relevant bibliographies by topics / Railway traffic modeling

Academic literature on the topic 'Railway traffic modeling'

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Published: 23 September 2022
Last updated: 28 September 2022

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Journal articles on the topic "Railway traffic modeling"

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Lanis, Aleksey. "Results of modeling the behavior of the subgrade with pressure injection of solidifying solutions." MATEC Web of Conferences 239 (2018): 05006. http://dx.doi.org/10.1051/matecconf/201823905006.

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Further development of railway transport is possible through increasing the traffic intensity by increasing the weight and number of trains and their speed. The growth of defects and deformations of the subgrade is inevitable, and the issues related to the reinforcement of soils of the subgrade are relevant. Measures that result in reliable operation of railway infrastructure facilities can be implemented during major repairs or new construction, which requires traffic restriction and leads to additional economic costs. Thus, one of the priority issues is the development and implementation of ways to reinforce the subgrade of railways without traffic restriction. Such methods can include pressure injection, as well as various modifications of this method based on combining known methods of reinforcement and injection.
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NING, BIN, KE-PING LI, and ZI-YOU GAO. "MODELING FIXED-BLOCK RAILWAY SIGNALING SYSTEM USING CELLULAR AUTOMATA MODEL." International Journal of Modern Physics C 16, no. 11 (November 2005): 1793–801. http://dx.doi.org/10.1142/s0129183105008308.

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In this paper, we propose a new cellular automata model to simulate the railway traffic. The proposed model is based on deterministic NaSch traffic model. The signaling system adopted in this work is the three-aspect fixed-block signaling system. In order to obtain insight into the characteristic behavior of the railway signaling system, we analyze the space-time diagram of traffic flow and the trajectory of train movement etc. The simulation results demonstrate that the proposed CA model can be successfully used for the simulations of railway signaling system. Some complex phenomena observed in railway system can be reproduced.
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Kornaszewski, Mieczysław. "Modelling of exploitation process of the railway traffic control device." WUT Journal of Transportation Engineering 124 (March 1, 2019): 53–63. http://dx.doi.org/10.5604/01.3001.0013.6634.

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The basic purpose of railway traffic control devices is to ensure a high level of safety of moving trains on the railway network. The railway traffic control devices often work in difficult environmental conditions and are exposed to external interference. These circumstances require continuous analysis of the state of the railway traffic control system. With time, the system's technical condition deteriorates. When its technical condition is not satisfactory it is necessary to operate it and renew its state of use. The rational implementation of exploitation tasks of the railway traffic control system allows the introduction of mathematical modeling methods into exploitation tests. Using the mathematical model of the exploitation process of the railway traffic control system, it is possible to forecast e.g. reliability indicators of its individual objects. Knowledge of exploitation parameters should be used in making decisions in the process of managing the exploitation of the railway traffic control devices.
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LI, KE-PING, ZI-YOU GAO, and BIN NING. "MODELING THE RAILWAY TRAFFIC USING CELLULAR AUTOMATA MODEL." International Journal of Modern Physics C 16, no. 06 (June 2005): 921–32. http://dx.doi.org/10.1142/s0129183105007613.

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The NaSch model is a probabilistic cellular automaton (CA) model for the description of single-lane highway traffic. Based on this model, we propose a new cellular automata model for the railway traffic. The signaling system adopted in this work is the moving block signaling system. In our model, the distance between the following train and its leading train takes into account the velocity of the leading train. The simulation results demonstrate that our model is suitable for simulating the railway traffic. Compared our scheme to the traditional moving-space-block scheme, it is obvious that using our scheme, not only the line capacity can be increased, but also the traffic flow states are safer.
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Timukhina, Yelena, Petr Kozlov, Vitaly Kolokolnikov, and Nikolay Tushin. "Modeling of large railway polygons." MATEC Web of Conferences 216 (2018): 02025. http://dx.doi.org/10.1051/matecconf/201821602025.

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When large junctions of railway polygons are studied, detailed modeling is subject to some limitations. Therefore, it is necessary to develop appropriate tools. This paper presents an aggregate (macromodeling) technique for necks and yards of railway stations. Results of calculations based on aggregate models are highly consistent with results of detailed modeling, which confirms the applicability of this modeling method to railway polygons. The proposed principles were implemented on the basis of the IMETRA simulation system. The resulting polygon model makes it possible to determine the total throughput of a polygon and to identify bottlenecks that slow down car traffic.
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Kupitman, Julia O. "MODELLING COMMUTER TRAINS USING CORRESPONDENCE MATRIX." Vestnik of Astrakhan State Technical University. Series: Management, computer science and informatics 2021, no. 2 (April 30, 2021): 29–38. http://dx.doi.org/10.24143/2072-9502-2021-2-29-38.

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The article considers the problem of planning transport solutions for development and improvement of railway transport in the suburban direction because of impossibility to separate and to describe the flows of requests, as well as to determine the system states. It has been stated that under such conditions the approach using correspondence matrices in modeling looks promising. The applicability of the methods to passenger transportation by railway is being considered. The method of calculating service time of passenger traffic by electric train is described in the case of calculating the service time between the railway stations Irkutsk-Passenger-Shelekhov. Train downtime at each station depends on the number of people waiting, and travel time between stations is stated as constant. There is given a description of a software product, whose algorithm includes this method. With further development of the software and its introduction into internal automated system of Russian Railways it will be possible to calculate the workload of each railway line, to track passenger traffic and to plan an electric train with a suitable number of cars. This will help to increase the efficiency of commuter trains.
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Lindenmaier, László, István Ferenc Lövétei, Gábor Lukács, and Szilárd Aradi. "Infrastructure Modeling and Optimization to Solve Real-time Railway Traffic Management Problems." Periodica Polytechnica Transportation Engineering 49, no. 3 (September 1, 2021): 270–82. http://dx.doi.org/10.3311/pptr.18582.

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Rail transportation helps to reach the global climate targets because it is characterized by low emission. The passenger and freight volumes on the railway increase yearly in line with EU targets. However, delays of passenger and freight trains decrease the punctuality and the reliability of the railway sector and the development of the infrastructure is not enough to increase the average speed of trains. Delays mean cost to the passengers, railway operators, infrastructure managers, and all railway undertakers. Therefore, the reason for the most significant optimization target is to minimize delays. In this paper, a possible solution has been described to solve the real-time railway traffic management problems by applying a mixed-integer linear programming approach. For validation of the research result, one simplified case study has been presented. Based on the result, the presented solution can provide effective support to dispatchers in solving real-time traffic management problems.
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Kotenko, Alexey, Iosyph Kokuryn, Vladimir Belozerov, and Vyacheslav Tymchenko. "Evaluation method of reconstructed railway line train-handling capacity based on simulation modeling." Proceedings of Petersburg Transport University, no. 2 (June 20, 2017): 372–80. http://dx.doi.org/10.20295/1815-588x-2017-2-372-380.

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Objective: To improve prediction estimate of traffic volume development on reconstructed railway lines. Methods: The study is dedicated to the development of simulation modeling method, statistical data processing method, as well as probability theory and method for determination of capital investments’ economic efficiency were also applied in the research. Results: A simulation modeling method of train-handling capacity estimation on a reconstructed railway line, including the validation of a reconstructed railway line modeling limits, the assessment of track possession approval, account of freight traffic characteristics and matching probability calculation of a modeled and required train-handling capacity of a railway line. A simulation modeling method of train handling on a reconstructed railway line was developed, including the procedure of assessment of train delays at stations and track possession approval, as well as checking procedure of track possession approval for the given number of freight trains. It was shown that, on the basis of simulation modeling of train handling on a reconstructed railway line data processing with track possession approval, different “categories” of freight trains handling and the duration of tracks’ occupation, matching probability of a modeled and required train handling capacity of a railway line may be assessed. Practical importance: The suggestions stated in the study will allow design engineers of organizations to assess the delay level at the stations from track possession approval when handling freight trains of different lengths and bulk, in the process of calculation of train handling capacity of railway lines.
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FLAMMINI, FRANCESCO, STEFANO MARRONE, MAURO IACONO, NICOLA MAZZOCCA, and VALERIA VITTORINI. "A MULTIFORMALISM MODULAR APPROACH TO ERTMS/ETCS FAILURE MODELING." International Journal of Reliability, Quality and Safety Engineering 21, no. 01 (February 2014): 1450001. http://dx.doi.org/10.1142/s0218539314500016.

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European Railway Traffic Management System/European Train Control System (ERTMS/ETCS) is a recent standard aimed at improving performance, safety and inter-operability of modern railways. In order to be compliant to ERTMS/ETCS, a railway signalling system must meet strict nonfunctional requirements on system level failure modes. In this paper, a multiformalism model is employed to perform an availability analysis of an ERTMS/ETCS reference architecture at early phases of its development cycle. At this aim, a bottom-up analysis is performed from subsystem failure models (expressed by means of Generalized Stochastic Petri Nets, Fault Trees and Repairable Fault Trees) up to the overall system model. The modular approach, here used, allows to evaluate the influence of basic design parameters on the probability of system-level failure modes and demonstrates that system availability is within the bound required by the ERTMS/ETCS specification. The results show that the multiformalism modeling approach helps to cope with complexity, eases the verification of availability requirements and can be successfully applied to the analysis of complex critical systems.
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Basalaeva, Anna, Vladimir Medvedev, and Pavel Strykov. "Integrated safety system for workers and traffic in railway transport." MATEC Web of Conferences 239 (2018): 02007. http://dx.doi.org/10.1051/matecconf/201823902007.

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The safety and stability of the transportation process in railway transport is provided by a set of various measures. However, violations, incidents and accidents continue to occur, causing significant damage to workers, infrastructure, natural environment, and population. The relevance of the study is determined by the need of finding ways to prevent this damage and reduce the socio-economic and environmental costs. The purpose of the study is the development of an integrated safety system for traffic and workers in railway transport. A set of theoretical and experimental research methods has been applied: physical, simulation and computer modeling; statistics, theory of probability and others. The main result of the development is a complex system of interrelated units: “Sphere of activity”; “Qualification of personnel”; “The required level of work”; “Rating of danger”; “Optimization and technical and economic assessment of company costs”. Requirements for an information management system were developed for the holding company “Russian Railways”. This system allows personal accounting of the qualifications of employees (over 900 thousand) in the main areas of activity: ensuring traffic safety; occupational safety and health; transport, industrial, fire and electrical safety; protection in emergency situations. The project of the normative and technical document regulating the corresponding changes is substantiated. On the basis of theoretically processed experimental material, the expected development efficiency was established: 8-10%.
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Dissertations / Theses on the topic "Railway traffic modeling"

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Mezeh, Reda. "Advanced numerical modeling of vibrations induced by railway traffic." Thesis, Lille 1, 2017. http://www.theses.fr/2017LIL10064/document.

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Les lignes à grande vitesse sont considérées comme une source importante de perturbations environnementales qui sont de moins en moins tolérées par les habitants. Afin de comprendre la dynamique de ces systèmes, il est important de développer des modèles numériques pour simuler les problèmes de vibration véhicule/voie ferrée et comprendre les interactions de la voie ferrée et des composants du véhicule. Une nouvelle approche basée sur la mise à jour périodique de la configuration « Méthode PCU » est d’abord proposée pour l’évaluation de la réponse dynamique des poutres infinies continuellement supportées sous charges mobiles à grande vitesse. La méthode PCU est utilisée pour évaluer la réponse dynamique d’un système simplifié voie ferrée/sol dans lequel la fondation du rail est remplacée par une couche viscoélastique continue. D’autre part, une modélisation numérique 3D considérant le couplage dynamique mutuel complexe entre les composantes de la voie ferrée et la couche du sol est développée. Un schéma de maillage adaptatif est appliqué pour simuler l’effet des charges mobiles ; il est représenté par la création des nœuds mobiles attachés aux charges. Cette modélisation est appliquée avec succès dans la gamme de vitesses sub-Rayleigh et super-Rayleigh. Dans la dernière partie, la modélisation numérique 3D est utilisée pour calibrer les impédances dynamiques du modèle simplifié proposé dans le premier chapitre. Une procédure itérative d’ajustement de courbe est réalisée à l’aide de l’algorithme génétique. Des lois constitutives qui régissent le comportement dynamique des éléments discrets sont proposées aux différentes fréquences de chargement et gamme de vitesses
The high speed lines are considered as an important source of environmental disturbance that are less and less tolerated by inhabitants. In order to understand the dynamics of these systems, it is important to develop numerical models to simulate the vibration problems vehicle/track and understand the interactions of the track and vehicle components. A new approach based on periodic configuration update “PCU method” is firstly proposed for the assessment of the dynamic response of continuously supported infinite beams under high speed moving loads. The PCU method is used to assess the dynamic response of a simplified track/ground system in which the rail foundation is replaced by a continuous viscoelastic layer. On the other hand, a 3D numerical modeling that considers the complex mutual dynamic coupling between the track components and the subgrade layer is developed. An adaptive meshing scheme is applied to simulate the moving loads effect; it is represented by the creation of load-attached moving nodes on the rail-beam. This modeling is successfully applied in the sub-Rayleigh and super-Rayleigh velocity range. In the last part, the 3D numerical modeling is used to calibrate the dynamic impedances of the simplified beam model proposed in the first chapter. An iterative curve fitting procedure is carried out using the genetic algorithm. Constitutive laws that govern the dynamic behavior of the discrete elements are proposed at different load frequency and velocity range
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Schanzenbächer, Florian. "Max-plus modeling of traffic on passenger railway lines with a junction : fundamental diagram and dynamic control." Thesis, Paris Est, 2020. http://www.theses.fr/2020PESC2098.

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La thèse a pour objectif principal de contribuer à la méthodologie de régulation du trafic sur une ligne ferroviaire, dans la configuration typique d’une ligne à tronc et branches en milieu urbain ou régional. L'ambition est d’apporter une modélisation plus fine du trafic des voyageurs et des trains en interaction, qui permette à la fois d’évaluer finement la qualité du service rendu aux voyageurs et différentes décisions de l’opérateur de la ligne. Se basant sur cette modélisation, nous développerons une méthode de contrôle du trafic (stratégique/ tactique et opérationnel) spécialement adaptée au problème de ligne avec embranchement. L'objectif industriel est l'implémentation d'un système de régulation dynamique intelligent pour une ligne à fourche
The aim of the doctoral thesis is to contribute on the developpement of real-time traffic control algorithms for mass transit railway systems with junctions, located in urban areas. The scientific ambition of the doctoral thesis is to develop a traffic model with a finer modelisation of the train-passengers interaction. The model will allow a more precise evaluation of the level of service offered to the passengers and of the decisions taken by the operator of the line. Basing on this modeling, we will develop a control algorithm (strategic/ tactical and operational) in order to enhance the service quality on the line. The objective of the Paris metro system operator, financing this thesis, is to have a ready-to-implement control system for a railway line with a junction
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Gely, Laurent. "Modélisation et optimisation de la gestion opérationnelle du trafic ferroviaire en cas d’aléas." Thesis, Bordeaux 1, 2010. http://www.theses.fr/2010BOR14177.

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La régulation ferroviaire sur de vastes zones est un problème complexe. Elle intervient dans la phase opérationnelle de la production. Son rôle consiste à trouver de nouvelles solutions en termes de planification des mouvements de trains suite à l'apparition d'un incident empêchant la réalisation normale du plan de transport préétabli dans les phases amont de la production.La contribution de ce travail s'organise autour de trois axes.Le premier consiste à définir une formalisation exhaustive du système ferroviaire, associé à une représentation plus cohérente (modèle multiniveau).Le deuxième axe s'articule autour de l'étude des modèles mathématiques pour la régulation du trafic ferroviaire: évolutions d'un modèle en temps continu complet (espacements dynamiques), proposition d'un modèle innovant à temps discret et d'un modèle mixte (continu-discret) adossé au modèle multiniveau.Enfin, le dernier axe traite de la mise en oeuvre concrète au niveau industriel, en particulier des gains attendus du couplage avec un outil de simulation
On-line re-scheduling of trains aims to find accurate solutions after an incident has occurred on the railway network. When we consider a large area, solutions consist in calculating new timetables, sequences and routes of trains. This problem asks for decision support tools based on operational research techniques.This thesis aims to develop solutions toward an operational tool, it articulates around three main parts. The first part defines an exhaustive model of the railway system operations and a multiscalable description of the infrastructure.The second part presents three mathematical models of the rescheduling problem associated with this description. We preset a exhaustive continuous time based model including headways that take into account speeds of trains, plus a discrete time based model and an hybrid model combining both formulations.The last part describes first implementations and the global framework we need to develop in order to solve the real world problem. It emphases on expected synergies, specilaly between simulation and optimization techniques
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Acuña-Agost, Rodrigo. "Mathematical modeling and methods for rescheduling trains under disrupted operations." Phd thesis, Université d'Avignon, 2009. http://tel.archives-ouvertes.fr/tel-00453640.

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En raison de problèmes opérationnels et d'autres événements inattendus, un grand nombre d'incidents se produisent quotidiennement dans les systèmes de transport ferroviaire. Certains d'entre eux ont un impact local, mais quelques fois, essentiellement dans les réseaux ferroviaires plus saturés, des petits incidents peuvent se propager à travers tout le réseau et perturber de manière significative les horaires des trains. Dans cette thèse doctorale, nous présentons le problème de réordonnancement de plan de circulation ferroviaire en cas d'incident comme la problématique de créer un plan de circulation provisoire de manière à minimiser les effets de la propagation des incidents. Ce travail est issu du projet MAGES (Module d'Aide à la Gestion des Sillons) qui développe des systèmes de régulation pour le trafic ferroviaire. Nous présentons deux modèles différents qui permettent de trouver des solutions à ce problème : Programmation Linéaire en Nombres Entiers (PLNE) et Programmation Par Contraintes (PPC). Du fait de la nature fortement combinatoire du problème et de la nécessité de répondre rapidement aux incidents, il ne paraît pas raisonnable d'envisager une résolution exacte. Les méthodes correctives proposées consistent donc à explorer un voisinage restreint des solutions : right-shift rescheduling; une méthode basée sur des coupes de proximité; une méthode d'analyse statistique de la propagation des incidents (SAPI) et un méthode basée sur la PPC. Additionnellement, certaines de ces méthodes ont été adaptées sous forme d'algorithmes itératifs avec l'objectif d'améliorer progressivement la solution quand le temps d'exécution le permet. SAPI est une des principales contributions de cette thèse. SAPI intègre les concepts de right-shift rescheduling avec les coupes de proximité. Du fait de la taille des réseaux en jeu et du nombre de circulations, les phénomènes complexes de propagation d'un incident font qu'il est très difficile de connaitre de manière précise les événements qui seront affectés. Toutefois, il est tout de même envisageable d'évaluer la probabilité qu'un événement soit affecté. Pour calculer cette probabilité, un modèle de régression logistique est utilisé avec des variables explicatives dérivées du réseau et des circulations. Diverses variantes de ces méthodes sont évaluées et comparées en utilisant deux réseaux ferroviaires localisés en France et au Chili. À partir des résultats obtenus, il est possible de conclure que SAPI est meilleure que les autres méthodes en terme de vitesse de convergence vers l'optimum pour les instances de petite taille et moyenne alors qu'une méthode coopérative PNLE/PPC est capable de trouver des solutions pour les instances de plus grande taille. La difficulté de comparer SAPI avec d'autres méthodes présentées dans la littérature nous a encouragés à appliquer la méthode à un autre problème. Ainsi, cette méthodologie a été également adaptée au problème de réordonnancement de passagers, vols et appareils (avions) en cas de perturbations, problème originalement proposé dans le contexte du Challenge ROADEF 2009. Les résultats montrent que SAPI est efficace pour résoudre ce problème avec des solutions au-dessus de la moyenne des équipes finalistes en obtenant la troisième place du challenge
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Milliet, De Faverges Marie. "Développement et implémentation de modèles apprenants pour l’exploitation des grandes gares." Electronic Thesis or Diss., Paris, CNAM, 2020. http://www.theses.fr/2020CNAM1283.

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Cette thèse traite de l’incertitude et de la robustesse dans les problèmes de d´décision, avec le cas d’application des affectations de quais en gare en cas de retards. Une m´méthodologie en deux parties est proposée pour aborder ce problème. Dans un premier temps, les archives de données de retards sont utilisées pour construire des modèles de prédiction de distribution de probabilités conditionnellement aux valeurs d’un ensemble de variables explicatives. Une m´méthodologie de validation et d’évaluation de ces prédictions est mise en place afin d’assurer leur fiabilité pour de la prise de d´décision. Le problème d’affectations de quais pouvant être vu comme une recherche de clique de taille maximum, ces distributions prédites sont utilisées dans une seconde partie pour ajouter des pondérations pénalisant les risques de rupture des arêtes en cas de retard. Des algorithmes de recherche locale ont ´été utilisés et les expériences ont montré une importante baisse de conflits
This thesis deals with uncertainty and robustness in decision problems, with the case of the train platforming problem subject to delays. A two-part methodology is proposed to address this problem. First, delay records are used to build models predicting probability distributions conditionnaly to a set of explanatory variables. A methodology to validate and evaluate these predictions is proposed to ensure their reliability for decision-making. As the train platforming problem can be seen as a weighted clique problem, these predicted distributions are used in a second part to add weights on edges to penalize risk of conflict. Local search algorithms are used and experiments show a significant decrease in conflicts
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"Petri net based modelling, simulation and optimisation for a class of railway system with people traffic." 2015. http://repository.lib.cuhk.edu.hk/en/item/cuhk-1291377.

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Venkatarangan, M. J..
Thesis Ph.D. Chinese University of Hong Kong 2015.
Includes bibliographical references (leaves 103-105).
Abstracts also in Chinese.
Title from PDF title page (viewed on 27, September, 2016).
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Book chapters on the topic "Railway traffic modeling"

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Karoń, Grzegorz. "Modeling of Traffic Smoothness for Railway Track Closures in the Rail Network." In Rail Transport—Systems Approach, 319–59. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-51502-1_8.

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Srivastava, Anoop, Sanjeev Swami, and Devender Banwet. "Interpretive Structural Modeling of Security Systems for Better Security Management in Railways." In Traffic Safety, 367–77. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781119307853.ch23.

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Magnien, Airy, Gabriele Cecchetti, Anna Lina Ruscelli, Paul Hyde, Jin Liu, and Stefan Wegele. "Formalization and Processing of Data Requirements for the Development of Next Generation Railway Traffic Management Systems." In Reliability, Safety, and Security of Railway Systems. Modelling, Analysis, Verification, and Certification, 35–45. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-05814-1_3.

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Holubiec, Jerzy, and Grażyna Petriczek. "Models for Railway Traffic Management." In Modeling and Control of Economic Systems 2001, 291–95. Elsevier, 2003. http://dx.doi.org/10.1016/b978-008043858-0/50050-4.

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Lopes, P., P. Alves Costa, A. Silva Cardoso, R. Calçada, and J. Fernández. "Numerical modelling of vibration mitigation due to subway railway traffic." In Numerical Methods in Geotechnical Engineering IX, 1613–21. CRC Press, 2018. http://dx.doi.org/10.1201/9781351003629-203.

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Campion, G., V. Vanbreusegem, and G. Bastin. "MODELLING, SIMULATION AND CONTROL OF THE TRAFFIC AT THE TERMINUS STATIONS OF URBAN UNDERGROUND RAILWAY LINES." In Control in Transportation Systems 1986, 179–84. Elsevier, 1987. http://dx.doi.org/10.1016/b978-0-08-033438-7.50034-3.

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Conference papers on the topic "Railway traffic modeling"

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Liu, Bin, and Yinzhen Li. "Modeling Utilization Scheme of Railway Passenger Station Tracks." In Sixth International Conference of Traffic and Transportation Studies Congress (ICTTS). Reston, VA: American Society of Civil Engineers, 2008. http://dx.doi.org/10.1061/40995(322)66.

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Venkatarangan, M. J., and Yam Yeung. "Modeling and simulation of Railway traffic as a hybrid system." In 2014 8th Annual IEEE Systems Conference (SysCon). IEEE, 2014. http://dx.doi.org/10.1109/syscon.2014.6819300.

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Milbredt, Olaf, Florian Rudolph, and Erik Grunewald. "Optimizing Intermodal Traffic Management Involving Airports and Railway using Forecast and What-if Capability." In AIAA Modeling and Simulation Technologies Conference. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2017. http://dx.doi.org/10.2514/6.2017-4335.

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Jia, Wenzheng, Tinkin Ho, Zhenqi Chen, and Baohua Mao. "Petri Net Modeling of Spatial and Temporal Constraints in Track Allocation Problem at Railway Stations." In Seventh International Conference on Traffic and Transportation Studies (ICTTS) 2010. Reston, VA: American Society of Civil Engineers, 2010. http://dx.doi.org/10.1061/41123(383)109.

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Wang, Yuerong, and Zhenhai Zhang. "Reliability modeling and analysis of on-board subsystem of high-speed railway ATO system based on Bayesian network." In 5th International Conference on Traffic Engineering and Transportation System (ICTETS 2021), edited by Yongkang Xing. SPIE, 2021. http://dx.doi.org/10.1117/12.2619970.

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Fikejz, J. "Design of railway network model reflecting data structure non-oriented graph using Oracle Spatial database for simulation of traffic." In The 32nd European Modeling & Simulation Symposium. CAL-TEK srl, 2020. http://dx.doi.org/10.46354/i3m.2020.emss.030.

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Khadem-Sameni, Melody, John Preston, and John Armstrong. "Railway Capacity Challenge: Measuring and Managing in Britain." In 2010 Joint Rail Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/jrc2010-36280.

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In the European Union, the total length of railway lines has decreased since 1970, mainly by abandoning very old routes such as those to coal mines. However, there has been huge growth in the transport of goods and passengers due to economic growth and globalization. Accommodating more passengers and goods on less infrastructure has resulted in the railway capacity challenge. The highest rate of growth in passenger kilometres in Europe belongs to Britain, where a rise of 42.2 percent has been achieved in the period 1995–2006 while the total length of railway lines has decreased from 19,330 route km in 1970 to 16,321 km in 2008. Railways originated from Great Britain therefore old tracks along with huge growth in railway transportation in recent years and inadequate infrastructure have resulted in a serious railway capacity challenge. This paper reviews different definitions of railway capacity, discusses issues for it (including having one degree of freedom for movement, constant need for maintenance due to wear caused by wheel-rail interaction and domino effect) and examines underlying infrastructure, traffic and operating parameters that affect capacity utilisation. Current methods for analyzing capacity utilisation are investigated: theoretical formulae, parametric and mathematical models and various simulation software. For tackling the capacity challenge, a hierarchy of soft and hard measures that can be deployed to increase capacity is proposed. Some of the latest initiatives in Britain to tackle railway capacity challenge and using the current infrastructure efficiently are analyzed including Network Modeling Framework (NMF), Delivering a Sustainable Railway, High Level Output Statement (HLOS) and Route Utilisation Strategies (RUSs). In the end, five policies that can contribute to better utilising capacity in Britain are suggested.
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8

Kalliainen, Antti, Pauli Kolisoja, and Antti Nurmikolu. "Modeling of the Effect of Embankment Dimensions on the Mechanical Behavior of Railway Track." In 2010 Joint Rail Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/jrc2010-36283.

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In the Northern areas the total thickness of structural layers in railway embankments is primarily governed by the design against harmful effect of seasonal frost. Because practically no frost heave can be allowed to take place on railway tracks with normal speed passenger traffic, the embankment must typically be built up to two or even two and a half meters thick. Meantime, the embankments have typically fairly steep slopes, for instance in Finland track embankments are normally built using a slope ratio of 1:1.5. Introduction of higher allowable axle loads and traffic speeds is, however, exposing the embankments structures to continuously increasing intensity of repeated loading which is also increasing the rate of permanent deformations accumulating into the embankment structure. In practical terms the embankment is widening as it deforms and the respective movements of the track must be compensated by more frequent maintenance actions. The most straightforward measures to increase the internal stability of a railway embankment are to make the embankment wider and/or to reduce the slope steepness of the embankment. Both of these actions mean, however, larger space requirement for the railway track and, above all, extensive increase in the use of high-quality non-frost-susceptible aggregate materials in connection with the embankment construction or renovation. Therefore, taking into account both the construction time costs on one hand and the maintenance costs of the track on the other hand, optimisation of the embankment dimensions and shape is an important issue regarding the life cycle costs of a railway line. In a research project going on at the Laboratory of Earth and Foundation Structures of the Tampere University of Technology the above mentioned problem is being studied by in-situ monitoring of a full scale railway track embankment having sections that are shaped in different embankment widths and slope angles. The long term deformations of the embankment have been monitored for about three years in addition to which also the short term responses of the embankment structure have been measured while trains are passing over the monitoring sections. In addition, model scale (1:4) test structures with different embankment widths and slope angles have been tested in laboratory using a loading system consisting of five hydraulic actuators operating consecutively so as to simulate the loading effect of a moving train. The results obtained so far indicate clearly that it is not only the embankment width and slope angle that are decisive concerning the permanent deformation behaviour of the railway embankment, but also the subgrade stiffness plays an important role in the overall performance of the embankment structure.
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Naumovski, Nikola, Viktor Hristovski, and Lidija Krstevska. "IN-SITU MEASUREMENTS AND NUMERICAL MODELING OF RAILWAY TRAFFIC-INDUCED GROUND VIBRATIONS IN URBAN AREAS." In 1st Croatian Conference on Earthquake Engineering. University of Zagreb Faculty of Civil Engineering, 2021. http://dx.doi.org/10.5592/co/1crocee.2021.108.

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Xu, Yuanxi, Yan Liang, and Keping Li. "A knowledge graph-based method for modeling and analyzing the disaster risks of railway construction in the mountainous area of Southwest China." In 2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA). IEEE, 2021. http://dx.doi.org/10.1109/isttca53489.2021.9654688.

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