Sökning: "train delay"

Visar resultat 1 - 5 av 45 uppsatser innehållade orden train delay.

  1. 1. Förläggning och utsättning av kabel längs Sveriges järnvägar

    Uppsats för yrkesexamina på grundnivå, Lunds universitet/Trafik och väg

    Författare :Henric Hagström; [2023]
    Nyckelord :Järnväg; Kabelförläggning; Kabelskada; Kabelanvisning; Underhåll; Förvaltning; Railway; Cable placement; Cable damage; Cable exposure; Maintenance; Management; Technology and Engineering;

    Sammanfattning : Detta examensarbete handlar om de problem relaterade till kabelskador som uppstår idag i samband med kabelutsättning vid grävarbeten inom järnväg. Kabelutsättning utförs vanligtvis av en underhållsentreprenör, som utförs genom att markera markytan där kabel under marken kan tänkas finnas. LÄS MER

  3. 2. Utvärdering av ankomstprognoser för tåg

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Trafik och väg

    Författare :Linus Rydstedt; [2023]
    Nyckelord :Train delay; traffic management; evaluation; arrival forecast; prediction; Technology and Engineering;

    Sammanfattning : In this master thesis, an evaluation of arrival forecasts for trains is made to see how various prediction sources compare to each other and how well these reflect reality. Furthermore, this thesis is a sprint of a research project that is carried out and conducted at Lund University of Technology on behalf of the Swedish Transport Administration. LÄS MER

  4. 3. Detecting Metro Service Disruptions and Predicting their Spillover Effects throughout the Network using GTFS and Large-Scale Vehicle Location Data

    Master-uppsats, KTH/Transportplanering

    Författare :WeiZhi Michelle Teo; [2023]
    Nyckelord :;

    Sammanfattning : One of the top factors that influence commuters’ satisfaction level with public transport is the punctuality of the service. Commuters rely on public transport to get them from their origin to destination on time and any form of delay will incur additional cost to both the commuters as well as the public transport operators. LÄS MER

  5. 4. How do fires affect the railway? - A Swedish study on what factors influence fire risk and how it affects railway traffic.

    Uppsats för yrkesexamina på grundnivå, Lunds universitet/Trafik och väg

    Författare :Jonatan Gustafsson; [2023]
    Nyckelord :Train; railway; fire; forest fires; delays; weather; Sweden.; Technology and Engineering;

    Sammanfattning : Forest fires can start in a variety of ways. "Fires started deliberately" and "fires started by sparks generated from a train braking" were two of the most common causes of fires between 2010 and 2020. Train braking accounted for 1.1% of all fires, whereas fires created by unknown reasons accounted for 43% of all fires. LÄS MER

  7. 5. Reinforcement Learning for Hydrobatic AUVs

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Grzegorz Woźniak; [2022]
    Nyckelord :Deep Reinforcement learning; Deep learning; Optimal control; Hydrobatics; Deep Reinforcement learning; Deep learning; Optimal control; Hydrobatics;

    Sammanfattning : This master thesis focuses on developing a Reinforcement Learning (RL) controller to perform hydrobatic maneuvers on an Autonomous Underwater Vehicle (AUV) successfully. This work also aims to analyze the robustness of the RL controller, as well as provide a comparison between RL algorithms and Proportional Integral Derivative (PID) control. LÄS MER