Sökning: "road accidents"

Visar resultat 36 - 40 av 125 avhandlingar innehållade orden road accidents.

1. 36. Development of traffic conflicts technique for different environments: A comparative study of pedestrian conflicts in Sweden and Jordan

   Författare :Lina Shbeeb; Trafik och väg; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; perception of conflicts.; non-signalised junctions; signalised junctions; accident prediction; accident to conflict conversion factors; TA-speed graphs; conflict speed; time to accidents; conflict sub-grouping; severity index; threshold; relevant road-user; pedestrian conflict; Traffic safety; traffic conflict technique; Technological sciences; Teknik; Social sciences; Samhällsvetenskaper;

   Sammanfattning : This study is aimed at improving the current Swedish Traffic conflicts Technique [TCT] in relation to vehicle-pedestrian conflicts. The present definition of conflict severity appears to produce less severe conflicts than they might be, particularly if the relevant road user (RRU) is the pedestrian. LÄS MER

3. 37. Posttraumatic Stress Disorder (PTSD) in the General Population

   Författare :Örjan Frans; Mats Fredrikson; Hans Ågren; Uppsala universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Psychology; posttraumatic stress disorder; trauma; epidemiology; general population; prevalence; traffic road accidents; DSM-structure; positron emission tomography; regional cerebral blood flow; symptom provocation; selective serotonin reuptake inhibitor; Psykologi; Psychology; Psykologi; klinisk psykologi; Clinical Psychology;

   Sammanfattning : This thesis explored the epidemiology of Posttraumatic Stress Disorder (PTSD) and different aspects of the disorder. Firstly, we investigated the lifetime prevalence of traumatic experiences and PTSD in the general adult population in Sweden and evaluated the impact of different trauma types, trauma frequency, and perceived distress. LÄS MER

4. 38. Children injured in traffic in a medical and psychosocial perspective : causes and consequences

   Författare :Eva M Olofsson; Göteborgs universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Posttraumatic stress; PTSD; PTSS; trauma care; road traffic accidents; children; follow-up; injury; disbility; physical consequences; psychological problems; sequel; bicycle accident; helmet; upper extremity injury; head injury; injury severity; psychosocial problems; risk factors;

   Sammanfattning : Aim: To examine the causes and consequences of road traffic injuries in children from a physical and psychosocial perspective, and to identify unfavourable circumstances and children who are at risk of injury and disability. Methods: Study I was a systematic review of the literature on posttraumatic stress disorder (PTSD) and PTSD symptoms (PTSS) in children injured in road traffic accidents. LÄS MER

5. 39. Assessment of Telematic Systems for Road Freight Transport

   Författare :Gideon Mbiydzenyuy; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Transportation; telematics; architectures; analysis; optimization; clustering; net present value;

   Sammanfattning : The focus of this thesis is the assessment of telematic systems for road freight transport from a planning perspective. The aim is to support strategic decisions related to architectural choices for such systems, with the possibility to achieve synergies by supporting multiple telematic services. LÄS MER

7. 40. Hydraulic Power Steering System Design in Road Vehicles : Analysis, Testing and Enhanced Functionality

   Författare :Marcus Rösth; Jan-Ove Palmberg; Nick Vaughan; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hydraulic Power Steering; Active Safety; Comfort function; Shuttering; Linear modelling; Fluid mechanics; Strömningsmekanik;

   Sammanfattning : Demands for including more functions such as haptic guiding in power steering systems in road vehicles have increased with requirements on new active safety and comfort systems. Active safety systems, which have been proven to have a positive effect on overall vehicle safety, refer to systems that give the driver assistance in more and less critical situations to avoid accidents. LÄS MER