Sökning: "road pattern"

Visar resultat 1 - 5 av 63 avhandlingar innehållade orden road pattern.

1. 1. Stads- och trafikplaneringens paradigm : en studie av SCAFT 1968, dess förebilder och efterföljare

   Författare :Anders Hagson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; design; road pattern; traffic environment; urban planning; network; separation; differentiation; principles; road accidents;

   Sammanfattning : Swedish towns have been developed according to the planning guidelines issued by the National Road Administration and the National Board of Urban Planning in 1968; SCAFT 1968 Riktlinjer för stadsplanering med hänsyn till trafiksäkerhet (The SCAFT Guidelines 1968 Principles for urban planning with respect to road safety). The five principles for urban planning suggested are; Locating activities and functions, Separating different classes of traffic, Differentiation within each road network, Clearness, simplicity and uniformity as well as Neighbourhood units. LÄS MER

3. 2. Excitation of Tyre Vibrations due to Tyre/Road Interaction

   Författare :Frédéric Wullens; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; tyre road interaction; tyre road noise; tyre structure modelling; contact modelling;

   Sammanfattning : Tyre/road noise is the main contributor to road traffic noise at speeds above 40 km/h for passenger cars and above 70 km/h for heavy trucks. Research has been carried out during the last thirty years in order to understand and quantify the generation mechanisms responsible for tyre/road noise. LÄS MER

4. 3. Urban Growth Modeling Based on Land-use Changes and Road Network Expansion

   Författare :Yikang Rui; Yifang Ban; Henning Sten Hansen; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; urban growth sprawl; land-use simulation; multi-agent system; road network pattern; space syntax; complex networks; evolving weighted networks; nonlinear growth; local world; hierarchy; self-organized; local optimization; morphological changes; street centrality; adaptive kernel density estimation; dual representation;

   Sammanfattning : A city is considered as a complex system. It consists of numerous interactivesub-systems and is affected by diverse factors including governmental landpolicies, population growth, transportation infrastructure, and market behavior. LÄS MER

5. 4. De-icing salt and the roadside environment : Air-borne exposure, damage to Norway spruce and system monitoring

   Författare :Göran Blomqvist; KTH; []
   Nyckelord :road; de-icing salt; air-borne; environmental impact; vegetation damage; Norway spruce; seedling; follow-up; monitoring; indicator;

   Sammanfattning : After decades of investigation, we still have to deal withthe problem of environmental effects of the use of de-icingsalt on roads. Lacking useful indicators of the system, westill do not know the environmental utility of ameliorativemeasures taken. LÄS MER

7. 5. The Long and Winding Road : Emotional Reactions during In Vitro Fertilization and Attitudes towards Cryopreserved Embryos and Oocyte Donation

   Författare :Agneta Skoog Svanberg; Torbjörn Bergh; Claudia Lampic; Per Olof Janson; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Caring sciences; attitude; cryopreservation; discarding; disclosure; distress; emotion; gender; infertility; in vitro fertilization; oocyte donation; psychology; public; Vårdvetenskap; Caring sciences; Vårdvetenskap; Obstetrics and Gynaecology; obstetrik och gynekologi;

   Sammanfattning : The main aims were to investigate emotional reactions during in vitro fertilization (IVF) treatment among women and men, attitudes of IVF couples towards cryopreserved embryos and public attitudes towards various aspects of oocyte donation in Sweden. Assessments of emotional, physical and social reactions were made on a daily reaction scale and attitudes on the basis of study-specific questionnaires. LÄS MER