Sökning: "Trafik och väg"

Visar resultat 11 - 15 av 87 avhandlingar innehållade orden Trafik och väg.

1. 11. Towards an electric bike level of service

   Författare :Khashayar Kazemzadeh; Trafik och väg; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : The fast-growing market of electric bikes (e-bikes) has introduced a paradigm shift in mobility with a promise to enhance the sustainability agenda. An in-depth understanding of transport quality of service (QOS) from the e-bike rider’s perspective is a promising approach to sustain the role of the e-bike in mobility. LÄS MER

3. 12. Accidents between pedestrians, bicyclists and motorized vehicles: Accident risk and injury severity

   Författare :Höskuldur Kröyer; Trafik och väg; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Accidents; pedestrians; bicyclists; exposure; risk; consequence; speed; age.;

   Sammanfattning : The aims of this work are to better understand (1) the relation between exposure and the risk of an accident between pedestrians and motorized vehicles and between bicyclists and motorized vehicles occurring at urban intersections and (2) how the speed environment and the victim´s age relate to the injury severity/outcome once a pedestrian or a bicyclist has been struck by a motorized vehicle. Cross sectional studies are used, and the relations are analyzed using multinomial logit models, negative binomial regression and other statistical methods. LÄS MER

4. 13. Dwell time delays for commuter trains : An analysis of the influence of passengers on dwell time delays

   Författare :Ruben Kuipers; Trafik och väg; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Dwell time; Passengers; Delays; Trains; Railway; Station; Automatic passenger count data;

   Sammanfattning : The thesis presented here delves into why dwell time delays for commuter trains occur, with a specific focus on the impact of boarding and alighting passengers. The overarching aim is to develop knowledge of how time delays arise to identify and describe potential ways in which dwell time delays can be reduced. LÄS MER

5. 14. Walking as a transport mode : Examining the role of preconditions, planning aspects and personal traits for the urban pedestrian

   Författare :David Lindelöw; Trafik och väg; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Walking; walkability; built environment; everyday life; transport planning; pedestrian;

   Sammanfattning : The overall aim of this thesis is to examine how walking as a transport mode is constructed in the planning realm, affected by the built environment and perceived by the individual. This aim is related to the following research questions: (1) How are pedestrians and walking understood, constructed and perceived in the planning context? (2) How does individual traits and the built environment affect the propensity of walking?The thesis starts off by arguing for the need of a holistic take on walking as a mode of transport (Study A). LÄS MER

7. 15. A method for analysing the traffic process in a safety perspective

   Författare :Åse Svensson; Trafik och väg; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; intermediate method; Accidents; pedestrian safety; safety hierarchy; severity; traffic conflicts; interaction; road user behaviour; traffic safety; traffic process; time to accidents; safety indicators; surrogate measures;

   Sammanfattning : The aim of this study is to extend the traffic safety assessment concept to also include normal road user behaviour, thus not only exceptional behaviours such as accidents and serious conflicts. The goal is to provide a framework for a more thorough description and analysis of safety related road user behaviour in order to better understand the traffic safety processes. LÄS MER