A conditional time-intervals formulation of the real-time Railway Traffic Management Problem
Autor: | Paola Pellegrini, Sonia Sobieraj Richard, Joaquin Rodriguez, Grégory Marliere |
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Přispěvatelé: | Évaluation des Systèmes de Transports Automatisés et de leur Sécurité (COSYS-ESTAS ), Université de Lille-Université Gustave Eiffel, Laboratoire Électronique Ondes et Signaux pour les Transports (COSYS-LEOST ), Université Gustave Eiffel |
Rok vydání: | 2023 |
Předmět: |
Mathematical optimization
Exploit Computer science 0211 other engineering and technologies Value (computer science) 02 engineering and technology Interval (mathematics) MINIMIZE SECONDARY DELAYS Scheduling (computing) TABLE HORAIRE 0502 economics and business Electrical and Electronic Engineering RE-ROUTING AND RE-SCHEDULING TRAINS 050210 logistics & transportation 021103 operations research CONSTRAINT PROPAGATION Applied Mathematics 05 social sciences HEURISTIQUE REAL TIME TRAFFIC MANAGEMENT GESTION DU TRAFIC Computer Science Applications Constraint (information theory) Variable (computer science) TRANSPORT FERROVIAIRE TRAITEMENT EN TEMPS REEL AFFECTATION DU TRAFIC Control and Systems Engineering Local consistency Train TRAIN DISPATCHING PROBLEM [MATH.MATH-OC]Mathematics [math]/Optimization and Control [math.OC] |
Zdroj: | CTS 2021, 16th IFAC Symposium on Control in Transportation Systems CTS 2021, 16th IFAC Symposium on Control in Transportation Systems, Jun 2021, Lille, France. pp187-194, ⟨10.1016/j.ifacol.2021.06.046⟩ |
ISSN: | 0967-0661 |
Popis: | CTS 2021, 16th IFAC Symposium on Control in Transportation Systems, Lille, FRANCE, 08-/06/2021 - 10/06/2021; This paper tackles the real-time Railway Traffic Management Problem (rtRTMP). It is the problem of finding an optimal choice for the train schedules and routes to reduce the delays of trains due to conflicts. We present a new Constraint Based Scheduling (CBS) formulation of the rtRTMP. This new formulation is based on the concept of conditional time-interval variables provided in the Ilog CP-optimizer library. A time-interval variable is the time interval in which an activity is executed, but it can also be a specific value meaning the activity is non-executed. The new formulation exploits this new kind of variables and specific constraint propagation algorithms which contribute to the efficiency of the solution methods. The formulation has been validated with experiments on a large set of instances. The experimental results demonstrate the effectiveness of this new CBS model and show its good performance compared with the state-of-the art RECIFE-MILP algorithm. |
Databáze: | OpenAIRE |
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