Sökning: "Geographical variations"

Visar resultat 1 - 5 av 91 avhandlingar innehållade orden Geographical variations.

  1. 1. Satisfaction with Public Transport Trips

    Författare :Roberto Fernandez Abenoza; Yusak Octavius Susilo; Oded Cats; Sigal Kaplan; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; customer satisfaction; public transport; three-factor theory; accessibility; built-environment; weather; door-to-door trips; firs and last-mile; market segmentation; geographical variations; service quality; safety perceptions; temporal variations; Transportvetenskap; Transport Science;

    Sammanfattning : Continuous urban growth, environmental issues, competition for limited space, longer commuting distances as well as the need to promote equity and equality in society are the primary reasons that make the improvement of public transport (PT) services a key policy area in many countries across the globe. Travel satisfaction measures the perceived quality of the PT service and it is an important aspect that operators and PT authorities need to consider when improving the service offered. LÄS MER

  3. 2. Improving Travel Satisfaction with Public Transport

    Författare :Roberto Fernández Abenoza; Yusak Octavius Susilo; Oded Cats; Lars E. Olsson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Customer Satisfaction; Service Quality; Public Transport; Door-to-door journey; Trip legs; Multimodal trips; User profiles; Market segmentation; Geographical variations; Transportvetenskap; Transport Science;

    Sammanfattning : The existing link between PT travelers’ satisfaction, ridership and loyalty prove the relevance of improving overall trip satisfaction. The thesis present an array of approaches and methodologies aiming at increasing overall satisfaction with PT door-to-door trips while covering important issues that previous research has failed to address. LÄS MER

  4. 3. Persistent organic pollutants in the atmosphere - spatial and temporal variations

    Författare :Cecilia Backe; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; tropical and temperate regions; global transport; temperature; latitudinal fractionation; fugacity; soil organic matter; soil-air exchange; washout ratio; rain; precipitation; atmosphere; spatial and temporal variations; DDT; PCB; persistent organic pollutants; polychlorinated biphenyls; Environmental chemistry; Miljökemi; Ecology; Ekologi; Chemistry; Kemi;

    Sammanfattning : In these thesis I have studied the spatial and temporal variations of PCBs in the atmosphere and in precipitation in southern Sweden. Further, soil-air exchange processes of PCBs were investigated. Finally, the long-range transport of PCBs and DDT was studied in the Baltic Sea region and in a tropical vs. a temporal region. LÄS MER

  5. 4. Spatial and Temporal Variations of Solifluction and Related Environmental Parameters in the Abisko Mountains, Northern Sweden

    Författare :Hanna Ridefelt; Jan Boelhouwers; Antoni Lewkowicz; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; solifluction; movement rates; Abisko region; Geographical Information Systems; statistical modelling; geomorphic work; permafrost; Physical geography; Naturgeografi; naturgeografi; Physical Geography;

    Sammanfattning : This thesis presents an assessment of the variation in solifluction occurrence, morphometry and movement rates in the Abisko region, northern Sweden. Variations in movement rates are analyzed both on a regional and local scale. LÄS MER

  7. 5. Changing population distribution in Sweden : long term trends and contemporary tendencies

    Författare :Johan Håkansson; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Population distribution; redistribution; Sweden; geographical levels; concentration; dispersion; accessibility; migration; natural population change; age composition;

    Sammanfattning : The aim of the thesis is to describe and analyse the population redistribution in Sweden at different geographical levels from the beginning of the 19th century to the end of the 20th century. The analysis is approached in three different ways. First, the redistribution at different geographical levels is analysed (papers I and II). LÄS MER