Sökning: "olycksrisk"

Hittade 4 avhandlingar innehållade ordet olycksrisk.

  1. 1. Young Drivers and Their Passengers : Crash Risk and Group Processes

    Författare :Inger Engström; Kjell Granström; Nils Petter Gregersen; Håkan Alm; Linköpings universitet; []
    Nyckelord :Young drivers; passengers; crash risk; group processes; Unga förare; passagerare; olycksrisk; grupprocesser; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP;

    Sammanfattning : The overall aim was to elucidate the effects of vehicle passengers on young drivers. This generated two specific aims and four papers. The first aim was to investigate the crash risk for young drivers with passengers and to establish whether such accidents involve any special circumstances compared to those that occur without passengers. LÄS MER

  3. 2. Motion Planning and Control of Automated Vehicles in Critical Situations

    Författare :Lars Svensson; Martin Törngren; Lei Feng; Anna Pernestål Brenden; Christian Gerdes; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Machine Design; Maskinkonstruktion;

    Sammanfattning : The road traffic environment is inherently uncertain and unpredictable. An automated vehicle (AV) deployed in such an environment will eventually experience unforeseen critical situations, i.e., situations in which the probability of having an accident is rapidly increased compared to a nominal driving situation. LÄS MER

  4. 3. On the Treatment of Flow in Traffic Safety Analysis, - a non-parametric approach applied on vulnerable road users

    Författare :Lars Ekman; Trafik och väg; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Social sciences; Samhällsvetenskaper; Teknik; Technological sciences; safety performance function; accuracy; simulation; bootstrap; bicyclist; pedestrian; risk; Traffic Safety; accident rate;

    Sammanfattning : The treatment of flow in the area of traffic safety has a long tradition. The influence flow has on the number of accidents is, however, often considered so obvious that it tends to be trivial. In this thesis I can show that the relation between flow and accidents holds interesting information. LÄS MER

  5. 4. Utvärdering av cykelfälts effekter på cyklisters säkerhet och cykelns konkurrenskraft mot bil

    Författare :Annika Nilsson; Trafik och väg; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; mode choice; route choice; bicycle flow; bicycle counts; level of service; attitudes; speed; lateral position; Road transport technology; behavior; Vägtransportteknik; Bicycle traffic; traffic safety; bicycle planning; bicycle lanes;

    Sammanfattning : This work presents an evaluation of bicycle lane effects on cyclist safety and the ability of bicycles to compete with car traffic. Thirteen Swedish urban streets were studied before and after bicycle lanes were introduced. LÄS MER