Sökning: "metro trains"

Hittade 5 avhandlingar innehållade orden metro trains.

1. 1. Efficient driving of CBTC ATO operated trains

   Författare :William Carvajal Carreño; Paloma Cucala García; Antonio Fernández-Cardador; Lennart Söder; Rafael Palacios Hielscher; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energy efficiency; CBTC signalling system; ATO; Metro; Ecodriving; NSGA-II-F; pseudo-Pareto front; Tracking algorithm; Fuzzy parameters; Moving-block; Train Simulation.; Electrical Engineering; Elektro- och systemteknik; Energy Technology; Energiteknik; Transportvetenskap; Transport Science;

   Sammanfattning : Energy consumption reduction is one of the priorities of metro operators, due to financial cost and environmental impact. The new signalling system Communications-Based Train Control (CBTC) is being installed in new and upgraded metro lines to increase transportation capacity. LÄS MER

3. 2. Thermal Capacity of Railway Wheels - Temperatures, residual stresses and fatigue damage with special focus on metro applications

   Författare :Shahab Teimourimanesh; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; railway tread braking; finite element analysis; frictional heating; fatigue damage; metro trains; rig field experiments; railway wheels; stop braking; temperatures;

   Sammanfattning : Tread (block) braking is still one of the most common braking systems on railway vehicles.The action is carried out by pressing brake blocks against the tread of a wheel, which is also inrolling contact with the rail. LÄS MER

4. 3. Rail Tunnel Evacuation

   Författare :Karl Fridolf; Avdelningen för Brandteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; smoke; walking speed; flow rate of people; experiment; train; tunnel; metro; underground rail transportation system; evacuation; Human behavior in fire;

   Sammanfattning : In this thesis, human behavior in rail tunnel fires is explored. Descriptive knowledge is presented related to the evacuation of passenger trains, and the subsequent tunnel evacuation to a safe location. LÄS MER

5. 4. INDOOR NOISE FROM URBAN RAILBOUND TRANSPORT

   Författare :SIGMUND OLAFSEN; Teknisk akustik; []
   Nyckelord :Tramway noise; acoustics; Indoor noise;

   Sammanfattning : Methods for determination of indoor noise and vibrations from urban rail bound transport are presented in this work. Both measurement methods and empirical prediction methods are described. The data and results are taken from field measurements of noise and vibrations from the trams and metro trains of Oslo. LÄS MER

7. 5. Simulation and Evaluation of Urban Rail On-board Crowding

   Författare :Soumela Peftitsi; Erik Jenelius; Oded Cats; Andreas Tapani; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Transportsystem; Transport Systems;

   Sammanfattning : As travel demand grows in many metropolitan areas, overcrowding in public transport systems has become a major issue. Crowding distribution can be highly uneven over station platforms and multi-car transit vehicles. This implies that cars are not equally utilized and thus, passengers perceive on-board crowding higher. LÄS MER