Skip to Main content Skip to Navigation
Theses

Méthodologie de réorganisation du trafic ferroviaire par analyse de sensibilité régionale : application à un incident sur infrastructure électrique

Soha Saad 1
1 G-SCOP_SIREP [2016-2019] - Système d’Information, conception RobustE des Produits [2016-2019]
G-SCOP - Laboratoire des sciences pour la conception, l'optimisation et la production
Abstract : The power supply quality of a railway network can be strongly affected by the unavailability of electrical equipment, whether due to a technical incident or a maintenance operation. It is then necessary to reduce the expected traffic by adjusting the time schedules and speed profiles, while maintaining optimal operating performance. The purpose of the work presented in this thesis is to develop a decision support tool to assist the agents in charge of the reorganization of traffic during an incident on electrical infrastructure. The studied system is complex and its analysis is based on costly simulations. We therefore proposed a two-phase approach. As a first step, a sensitivity analysis can effectively detect the most influential traffic adjustment variables. After a comparative analysis between different techniques, we selected the regional sensitivity analysis by Monte Carlo filtering and KS test, because it allows us to take into account the operational constraints, like the tension levels in line. The second phase consists in optimizing the solution by working in a small research area. A set of Pareto-Optimal solutions are generated to evaluate the best trade-off between the main criterion "traffic density" and other criteria such as losses or overheating. The techniques implemented led to the production of a prototype. The tool allows the engineer to define traffic adjustment variables and traffic performance criteria. Then it analyzes the influence of the various adjustment variables and optimizes the traffic according to the defined criteria. The tool was tested on four case studies proposed by SNCF Réseau and corresponding to network segments and actual rail traffic.
Document type :
Theses
Complete list of metadatas

Cited literature [212 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-02441342
Contributor : Abes Star :  Contact
Submitted on : Wednesday, January 15, 2020 - 5:23:06 PM
Last modification on : Wednesday, October 14, 2020 - 4:19:10 AM
Long-term archiving on: : Thursday, April 16, 2020 - 4:15:01 PM

File

SAAD_2019_archivage.pdf
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-02441342, version 1

Collections

Citation

Soha Saad. Méthodologie de réorganisation du trafic ferroviaire par analyse de sensibilité régionale : application à un incident sur infrastructure électrique. Autres [stat.ML]. Université Grenoble Alpes, 2019. Français. ⟨NNT : 2019GREAI057⟩. ⟨tel-02441342⟩

Share

Metrics

Record views

466

Files downloads

248