Search for dissertations about: "railway winter"
Showing result 1 - 5 of 12 swedish dissertations containing the words railway winter.
-
1. Technical and contractual aspects in winter highway and railway operation and maintenance : a survey of current technical systems and contract forms in Sweden
Abstract : .... READ MORE
-
2. EMC in railway systems : measurements, modeling and analysis
Abstract : The subject of this study and resulting thesis was to investigate the electromagnetic compatibility (EMC) problems in the multi-electrical signaling circuitry along a railway track. These signaling systems have been expanding over time from buried multi-wired electrical copper cables to optical fiber cables, sometimes located parallel to the contact line in the catenaries. READ MORE
-
3. Challenges with Driverless and Unattended Train Operations
Abstract : Demand for transportation continues to increase, for both freight and passenger services. One of the most energy-efficient modes of transportation is rail. One solution to increase the attractiveness of rail transport is to introduce automatic train operation (ATO) with a high grade of automation (GoA). READ MORE
-
4. Essential modelling details in dynamic FE-analyses of railway bridges
Abstract : The increased need to reduce the use of fossil fuels imposes higher demands on the efficiency of rail transportation. Therefore, an improved knowledge regarding the dynamic properties of railway bridges and infrastructure for railway traffic in general is required. READ MORE
-
5. Electromagnetic Interference in Modern Electrified Railway Systems with Emphasis on Pantograph Arcing
Abstract : Electrified railways are undergoing rapid modernized in terms of increased speed, freight capacity and increased traffic. Traction systems are spread across countries with different signaling and power feeding systems. Signalling systems are undergoing modernization and now-a-days are more dependent on wireless and radio based services. READ MORE