Sökning: "time-to-collision"

Hittade 4 avhandlingar innehållade ordet time-to-collision.

  1. 1. A methodology for operations-based safety appraisal of two-lane rural highways Application in Uganda

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Godfrey Mwesige; KTH.; [2015]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; passing zones; passing rate; collision risk; accepted gap; time-to-collision; passing sight distance; two-lane rural highways; Uganda; Transportvetenskap; Transport Science;

    Sammanfattning : The majority of the road infrastructure in developing countries consists oftwo-lane highways with one lane in each travel direction. Operational efficiency of these highways is derived fromintermittent passing zones where fast vehicles are permitted by design to pass slow vehicles using the opposite traffic lane. LÄS MER

  2. 2. Indicators for traffic safety assessment and prediction and their application in micro-simulation modelling a study of urban and suburban intersections

    Detta är en avhandling från Stockholm : KTH

    Författare :Jeffery Archer; KTH.; KTH.; [2005]
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Social sciences; Traffic safety; proximal safety indicators; micro-simulation; safety analysis; Samhällsvetenskap; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP;

    Sammanfattning : In order to achieve sustainable long-term transport infrastructure development, there is a growing need for fast, reliable and effective methods to evaluate and predict the impact of traffic safety measures. Recognising this need, and the need for an active traffic safety approach, this thesis focuses on traffic safety assessment and prediction based on the use of safety indicators that measure the spatial and/or temporal proximity of safety critical events. LÄS MER

  3. 3. A Simulation-Based Safety Analysis of CACC-Enabled Highway Platooning

    Detta är en avhandling från Halmstad : Halmstad University Press

    Författare :Maytheewat Aramrattana; Högskolan i Halmstad.; [2018]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; simulation; driving simulator; traffic simulator; network simulator; C-ITS; cooperative intelligent transport systems; platooning;

    Sammanfattning : Cooperative Intelligent Transport Systems (C-ITS) enable actors in the transport systems to interact and collaborate by exchanging information via wireless communication networks. There are several challenges to overcome before they can be implemented and deployed on public roads. LÄS MER

  4. 4. Integrated pedestrian safety assessment methodology

    Detta är en avhandling från Halmstad : Halmstad University Press

    Författare :Nils Lübbe; [2014]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; assessment; driver behavior; comfort zone boundary; integrated safety; pedestrian; Forward Collision Warning; False Positive;

    Sammanfattning : Pedestrian fatalities and injuries are a concern in many regions. Passive safety assessment is well established, and additional active safety assessment has recently emerged. However, assessment methods reflecting on the interaction between active and passive safety do not exist in regulatory or consumer testing. LÄS MER