Sökning: "railway infrastructure"

Visar resultat 11 - 15 av 217 uppsatser innehållade orden railway infrastructure.

  1. 11. Evaluation of load distribution on ballasted reinforced concrete railway trough bridges

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Byggkonstruktion och brand

    Författare :Alex Eriksson; [2023]
    Nyckelord :Concrete; numerical analysis; trough bridge; railway bridge; finite element model; discrete element method; Betong; numeriskanalys; trågbro; tågbro; finita elementmetoden; diskreta elementmetoden;

    Sammanfattning : A significant portion of the reinforced concrete railway bridges in Sweden are reaching their designed lifespan and are scheduled to be demolished and replaced in the upcoming years. To limit the econom-icand environmental impact related to the replacement of existing railway infrastructure, a comprehen-siveevaluation of their capacity is required with the aim of extending its lifespan. LÄS MER

  3. 12. Reduced Greenhouse Gas Emissions from Transport Infrastructure Construction : Reaching the Swedish Transport Administration's climate reduction targets with greenhouse gas reduction measures in the production phase of the most recurring materials

    Master-uppsats, Linköpings universitet/Industriell miljöteknik

    Författare :Pontus Sallerström; Sam Falakeh; [2023]
    Nyckelord :Transport infrastructure; Swedish Transport Administration; Greenhouse gas; Transport construction sector; LCA; Industrial Ecology; Transportinfrastruktur; Trafikverket; Växthusgas; Transportbyggnadssektorn; LCA; Industriell ekologi; Klimatkalkyl;

    Sammanfattning : I Sverige står byggsektorn för 25% av landets totala utsläpp av växthusgaser, där material står för mer än hälften av dessa utsläpp [1][2][3]. De största bidragsgivarna är stål och betong, men även material som aluminium och asfalt har en betydande miljöpåverkan. LÄS MER

  4. 13. Management of External Stakeholders in Public Infrastructure Projects : Two Case Studies from Spanish railway infrastructure projects

    Uppsats för yrkesexamina på avancerad nivå, Blekinge Tekniska Högskola/Institutionen för industriell ekonomi

    Författare :Alvaro Lopez Pedrosa; Jose Antonio Benavides Sanchez; [2023]
    Nyckelord :stakeholder; external; project; success;

    Sammanfattning : Background: This thesis is encompassed within the project management science and more specifically within external stakeholder management in public infrastructure projects. Objectives: The objective of this thesis is to analyse project success within two public infrastructure projects in Spain and to gather insight on the impact on project success in public infrastructure projects when managing external stakeholders from a project management perspective in order to contribute to best project management practices knowledge. LÄS MER

  5. 14. Effects of automation in railway on the capacity : At the example of the S-Bahn Stuttgart

    Master-uppsats, KTH/Transportplanering

    Författare :Tim Niku Pourian; [2023]
    Nyckelord :;

    Sammanfattning : Passenger numbers in rail transportation and the need for transportation of goods hasbeen rising over the last years. After a breakdown during the years of the pandemicthe need for transportation on rail has almost recovered and numbers are rising again. LÄS MER

  7. 15. Improved Bridge Load Capacity via Dynamic Train-Track-Bridge Interaction : Assessing the dynamic amplification factor caused by measured track irregularities for rail freight transport

    Master-uppsats, KTH/Bro- och stålbyggnad

    Författare :Muhannad Asaad; [2023]
    Nyckelord :;

    Sammanfattning : The carbon impact of transportation is large and requires sustainable solutions. With expected population growth, rail transportation plays a vital role in facilitating a greener Europe. The expansion of the rail infrastructure is therefore of essential importance for future challenges. LÄS MER