Search for dissertations about: "Critical road parameters"

Showing result 1 - 5 of 22 swedish dissertations containing the words Critical road parameters.

  2. 1. Safety Evaluation of Road Characteristics

    Author : Sarbaz Najib Othman; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Accident data; FOT data; Overtaking maneuvers; Road safety; PC-Crash; Critical road parameters; Horizontal curves;

    Abstract : Accidents are rare and widely distributed on the road network, which poses a challenge for road safety improvement. Traditional methods alone, such as accident analyses and experimental studies, do not explain all accident causation factors. READ MORE

  4. 2. The Road From Damascus : New Arrival Immigrant Families and The Swedish Preschool

    Author : Wiji Bohme Shomary; Anne-Li Lindgren; Elie Wardini; Millei Szuzsanna; Stockholms universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Early childhood education; new arrival immigrant families; preschool; criti-cal discourse analysis; state preschool political discourse; language learn-ing; belonging; agency; Förskoledidaktik; nyanlända invandrarfamiljer; förskola; kritisk diskursanalys; statlig förskolepolitisk diskurs; språkinlärning; tillhörighet; agens; Early Childhood Education; förskoledidaktik;

    Abstract : The overall aim of this doctoral thesis is to examine the perceptions that new arrival immigrant families have of Swedish preschool, and the perceptions of these families as expressed by the Swedish state preschool political discourse over the last fifty-year period. For this purpose, the study uses critical discourse analysis, as proposed by Norman Fairclough. READ MORE

  5. 3. Influence Of Road Feature Variables On Accident Rate

    Author : Sarbaz Najib Othman; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; safe road geometry; accident rate; black spots; accident causation; Traffic safety;

    Abstract : The main objective of this traffic safety investigation was to find critical road parameters affecting accident rate (AR). The secondary objective was to analyze any identified risk factors from a vehicle dynamics perspective. READ MORE

  6. 4. Analysis of Retroreflection and other Properties of Road Signs

    Author : Roxan Saleh; Hasan Fleyeh; Darko Babić; Högskolan Dalarna; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Road traffic signs; retroreflective sheeting material; night-time visibility; supervised machine learning; principal component analysis; prediction; linear regression;

    Abstract : Road traffic signs provide regulatory, warning, guidance, and other important information to road users to prevent hazards and road accidents. Therefore, the traffic signs must be detectable, legible, and visible both in day and nighttime to fulfill their purpose. The nighttime visibility is critical to safe driving on the roads at night. READ MORE

  7. 5. Using life cycle assessment to support the development of electrified road vehicles. Component data models, methodology recommendations and technology advice for minimizing environmental impact

    Author : Anders Nordelöf; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; inverter; magnet; LCI; electrical machine; stepwise improvements; electric vehicle; LCA; inventory data; motor; critical review; scalable model;

    Abstract : The anthropogenic pressure on the Earth system already overshoots safe limits for climate change, so there is an urgent need to drastically reduce greenhouse gas emissions caused by transportation. Electric propulsion technology is a promising solution that can decouple fossil fuel use from road vehicle traffic. READ MORE