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Showing result 1 - 5 of 7 swedish dissertations matching the above criteria.

  2. 1. Performance Measures of Road Infrastructures

    Author : Babak Ebrahimi; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LCCA; LCA; road infrastructure; SLR; survival analysis; modelling; lifetime; GIS;

    Abstract : Roads are transport infrastructures that play a fundamental role in the development of societies and businesses. They are valuable assets, as they connect places, provide mobility, create jobs and stimulate economic prosperity. READ MORE

  4. 2. Life cycle assessment of transport systems and transport infrastructure : Investigating methodological approaches and quantifying impacts at project and network levels

    Author : Carolina Liljenström; Anna Björklund; Susanna Toller; Rolf André Bohne; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Strategier för hållbar utveckling; Strategies for sustainable development;

    Abstract : Reducing greenhouse gas emissions from the transport sector is a key challenge to reach global climate targets and limit global warming to below 2 ºC. The use of life cycle assessment (LCA) may provide knowledge about the environmental impacts of transport systems so that emission reduction measures can be identified. READ MORE

  5. 3. Bridge Edge Beams : LCCA and Structural Analysis for the Evaluation of New Concepts

    Author : José Javier Veganzones Muñoz; Lars Pettersson; Costin Pacoste; Raid Karoumi; Håkan Sundquist; Morgan Johansson; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Civil and Architectural Engineering; Byggvetenskap;

    Abstract : Bridge edge beams in Sweden may involve up to 60% of the life-cyclemeasure costs incurred along the road bridge’s life span. Moreover, usercosts as means of traffic disturbances are caused. Consequently, the SwedishTransport Administration started a project to find better alternativeedge beam design proposals for the society. READ MORE

  6. 4. Wheel–Rail Impact Loads and Track Settlement in Railway Crossings

    Author : Xin Li; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; vehicle--track dynamics; wheel--rail contact; track settlement; material modelling of ballast; Switches and crossings; turnout; cyclic loading; Green s functions;

    Abstract : Turnouts (Switches & Crossings, S&C) are critical components of a railway track requiring regular maintenance and generating high life cycle costs. A main driver for the high maintenance costs is the need to repair and replace switch rails and crossings as these components are subjected to a severe load environment. READ MORE

  7. 5. Geo-environmental considerations in transport infrastructure planning

    Author : Caroline Karlsson; Bo Olofsson; Ulla Mörtberg; Joanne Robison Fernlund; João Manuel Coutinho Rodrigues; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Roads; Railways; Geology; GIS; Decision support; Modelling; Land and Water Resources Engineering; Mark- och vattenteknik;

    Abstract : Transport infrastructure constitutes one of the key factors to a country’s economic growth. Investment in new transport infrastructure might cause potential environmental impacts, and if a project has several alternative corridors open for suggestion then each alternative corridor will have a different impact on the environment. READ MORE