Essays about: "network rail"

Showing result 11 - 15 of 62 essays containing the words network rail.

1. 11. Path Choice Estimation in Urban Rails : Asimulation based optimisation for frequency-based assignment model

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Alexander Adolfsson; [2022]
   Keywords : Black-Box Optimisation; Optimization; Simulation based optimisation; Transit Network; Automaton; Urban Transport; Public transportation; Black-Box optimering; Optimering; Simuleringsbaserad Optimering; Transportsystem; Automation; Local Transport; Kollektivtrafik;

   Abstract : Transit system have a large importance in modern urban cities, with urban rail often acting as the central system with it efficient travel time and great capacity. As cities grow in population, so to does the usage of urban rail resulting in increased crowding on the platform and in the trains. READ MORE

3. 12. Pantograph-catenary wear modelling using dynamic simulation

   University essay from KTH/Väg- och spårfordon samt konceptuell fordonsdesign

   Author : Gaston Holmström; [2022]
   Keywords : Wear modelling; catenary pantograph interaction; mechanism; conditional; railway; slitagemodellering; kontaktledning pantograf interaktion; mekanism; konditionell; järnväg;

   Abstract : Wear condition modelling is a research topic which lately has increased in popularitydue to its significance to the railway industry. Large sums are spent on maintenanceof the network every year, which has generated a demand for understanding and predictingwear mechanisms in a multitude of components within both railway vehiclesand infrastructure. READ MORE

4. 13. Evaluation of efficiency and measures of improvement for Rail Freight Corridors in Europe

   University essay from KTH/Transportplanering

   Author : Anna Ståhlberg; [2022]
   Keywords : ;

   Abstract : To be able to achieve the environmental goals of the European union according to the Green Deal, the transportation of freight with railways needs to be prioritized. Right now, a large portion of the pollution in the European Union comes from the transportation market. READ MORE

5. 14. Detecting Defective Rail Joints on the Swiss Railways with Inception ResNet V2 : Simplifying Predictive Maintenance of Railway Infrastructure

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Anton Lu; [2022]
   Keywords : Rail Defect Detection; Rail Image Classification; Rail Joints; Object Detection; Image Classification; Deep Learning; Järnvägsfeldetektering; Järnvägsbildigenkänning; Järnvägsskarvar; Objectigenkänning; Bildklassificering; Djupinlärning;

   Abstract : Manual investigation of railway infrastructure is a labor-intensive and time-consuming task, and automating it has become a high priority for railway operators to reduce unexpected infrastructure expenditure. In this thesis, we propose a new image classification approach for classifying defect and non-defective rail joints in image data, based on previous fault detection algorithms using object detection. READ MORE

6. 15. Development of a Software Reliability Prediction Method for Onboard European Train Control System

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Guillaume Pierre Longrais; [2021]
   Keywords : Machine Learning; Software Reliability Growth Prediction; Linear Regression; Artificial Neural Network; Multi-Layer Perceptron; Imperialist Competitive Algorithm; Long Short-Term Memory Network; Convolutional Neural Network; Maskininlärning; förutsägelse av tillväxten av programvarans tillförlitlighet; linjär regression; artificiellt neuralt nätverk; flerskikts-perceptron; imperialistisk konkurrensalgoritm; nätverk med långt korttidsminne; konvolutionellt neuralt nätverk;

   Abstract : Software prediction is a complex area as there are no accurate models to represent reliability throughout the use of software, unlike hardware reliability. In the context of the software reliability of on-board train systems, ensuring good software reliability over time is all the more critical given the current density of rail traffic and the risk of accidents resulting from a software malfunction. READ MORE