Sökning: "railway maintenance"
Visar resultat 1 - 5 av 133 avhandlingar innehållade orden railway maintenance.
1. Reforming a publicly owned monopoly : costs and incentives in railway maintenance
Sammanfattning : The railway system is often considered to be an industry where a monopoly occurs “naturally”, which can explain the public ownership and the use of regulations. However, railways in Europe have been subject to reforms during the last three decades. LÄS MER
2. Railway Track Stiffness : Dynamic Measurements and Evaluation for Efficient Maintenance
Sammanfattning : Railway track stiffness (vertical track load divided by track deflection) is a basic parameter oftrack design which influences the bearing capacity, the dynamic behaviour of passing vehiclesand, in particular, track geometry quality and the life of track components. Track stiffness is abroad topic and in this thesis some aspects are treated comprehensively. LÄS MER
3. Cybersecurity in Railway : A Framework for Improvement of Digital Asset Security
Sammanfattning : Digitalisation changes operation and maintenance in railways. Emerging digital technologies facilitate implementation of enhanced eMaintenance solutions through utilisation of distributed computing and artificial intelligence. LÄS MER
4. Exploring Public Procurement of Swedish Railway Infrastructure Maintenance
Sammanfattning : In 2002, Sweden started to outsource its railway infrastructure maintenance. Through gradual exposure (i.e. outsourcing one contract area at a time), the Swedish Transport Administration has developed its competence of being a client towards its contractors. LÄS MER
5. Data-driven models for railway track geometry maintenance
Sammanfattning : Railways are currently experiencing higher demands on safety, infrastructure performance, network capacity and service quality, etc. As a result, a high level of track availability, service quality and infrastructure robustness against unexpected events is required, at reduced cost, to meet the demands. LÄS MER