Search for dissertations about: "road fem"

Showing result 1 - 5 of 25 swedish dissertations containing the words road fem.

2. 1. Road Surface and Tyre Interaction : Functional Properties affecting Road Dust Load Dynamics and Storage

   Author : Joacim Lundberg; Sigurdur Erlingsson; Mats Gustafsson; Xavier Querol; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Road dust; Road abrasion wear; Studded tyre abrasion wear; Texture; Emissions; Abrasion wear model; NORTRIP; PM10; Particles; Stone Mastic Asphalt – SMA; Porous Pavements; Double Layered Porous Asphalt Concrete – DLPAC; Road traffic noise; Rolling Resistance; Friction; Holistic; Function; Functional properties; Functional demands; Temporal variation; Spatial variation; Vägdamm; Vägslitage; Dubbdäcksslitage; Textur; Emissioner; Slitagemodell; NORTRIP; PM10; Partiklar; Asfaltsbetong; stenrik - ABS; Dränerande beläggning; Dubbeldränerande beläggning; Buller; Rullmotstånd; Friktion; Holistisk; Funktion; Funktionskrav; Tidsvariation; Rumsvariation; Byggvetenskap; Civil and Architectural Engineering; Building Materials; Byggnadsmaterial;

   Abstract : Luftburna partiklar (PM) är ett problem för människans hälsa, där flertalet samband mellan negativa hälsoeffekter finns mellan luftföroreningar finns, bland annat för respiratoriska sjukdomar, lungcancer och kardiovaskulära sjukdomar med flera. I länder där dubbdäck används, till exempel Sverige, Finland och Norge, och sandning av vägar och gator genomförs vintertid för att säkerställa god friktion kommer en betydande andel av partiklarna från vägslitage och nedkrossning av sand vilket bidrar till PM10. READ MORE

4. 2. Road Safety Development Index : Theory, Philosophy and Practice

   Author : Ghazwan Al-Haji; Kenneth Asp; Karl-Lennart Bång; Linköpings universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Transport; Road Traffic; Sustainability; Road safety; European research cooperation; Civil engineering and architecture; Research on Europe; Public health science; Statistics; Civil engineering and architecture; Samhällsbyggnadsteknik och arkitektur;

   Abstract : This dissertation develops, presents and tests a new international tool, the so-called Road Safety Development Index (RSDI), which indicates in a comprehensive and easy way the severity of the road safety situation in a specific country and/or in comparison with other countries. There are three pillars of outcomes involved in the framework of RSDI. READ MORE

5. 3. Implementing Road Pricing : Standards, Institutions, Costs, and Public Acceptance

   Author : Carl J. Hamilton; Jonas Eliasson; Robert Lindsey; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Abstract : Much has been researched and written about road pricing, and especially how it affects traffic flow, congestion, the environment, and social welfare in general. This doctoral thesis analyses the implementation of road user charges rather than its effects. The dissertation consists of five separate papers, each addressing a subset of the topic. READ MORE

6. 4. Ride Comfort Optimization of Buses

   Author : Peter Eriksson; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; structural vibrations; FEM; global optimization; ride comfort; roll control system; MBS; optimization; bus; road irregularities; sensitivity analysis;

   Abstract : As the design of buses is constantly improving, passengers are becoming more fastidious and the demand for a more comfortable travelling environment is constantly increasing. The main objective of this thesis is to contribute to the understanding of how the design of buses affects the ride comfort characteristics. READ MORE

7. 5. Computational Road Mechanics - with Emphasis on FE-analysis of Rutting

   Author : Johan Olsson; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; non-linear FEM; multi-layer structure; asphalt concrete; road design; material models; unbound material;

   Abstract : A road is a very complex structure in which a large number of different structural phenomena occur simultaneously that effects its expected lifetime. The structure itself is of a multi-layer type, in which the different layers consist of materials that exhibit vastly different physical behaviors when subjected to various kinds of loads. READ MORE