Sökning: "järnväg"
Visar resultat 1 - 5 av 30 avhandlingar innehållade ordet järnväg.
1. Marknadisering : En idé och dess former inom sjukvård och järnväg, 1970-2000
Sammanfattning : Denna avhandling undersöker hur marknadisering introducerades som idé i offentliga verksamheter i Sverige från 1970-talets början till omkring år 2000. Marknadisering definieras här som processen att göra verksamheter som inte tidigare var marknadsorganiserade eller marknadsstyrda mer marknadsliknande, och att detta framförallt handlade om offentliga verksamheter. LÄS MER
2. A Simulation-Optimization Approach for Improved Robustness of Railway Timetables
Sammanfattning : The timetable is an essential part for the operations of railway traffic, and its quality is considered to have large impact on capacity utilization and reliability of the transport mode. The process of generating a timetable is most often a manual task with limited computer aid, and is known to be a complex planning problem due to inter-train dependencies. LÄS MER
3. Measuring and Modelling PM Levels on Underground Platforms
Sammanfattning : Urban railways have become an essential part of the transportation network of cities due to their convenience and high capacity. To make full use of urban space, many urban railway platforms are built underground. LÄS MER
4. Predictive Models for Railway Track Geometry Degradation
Sammanfattning : Railways are a vital and effective means of mass transportation and play a vital role in modern transportation and social development. The benefits of the railway compared to other transportation modes are a high capacity, high efficiency and low pollution, and owing to these advantages, railways are nowadays experiencing a higher demand for the transportation of passengers and goods. LÄS MER
5. Regionala godstransportföretag på järnväg: en studie av marknadsutvecklingen i avregleringens spår
Sammanfattning : .... LÄS MER