Sökning: "Traffic signs"

Visar resultat 1 - 5 av 22 avhandlingar innehållade orden Traffic signs.

  1. 1. Cooperative Variable Speed Limit Systems : Modeling and Evaluation using Microscopic Traffic Simulation

    Författare :Ellen Grumert; Jan Lundgren; Andreas Tapani; Wilco Burghout; Statens väg- och transportforskningsinstitut; []
    Nyckelord :Variable speed limit; Traffic; Micro; Simulation; Data exchange; Telecommunication; Vehicle; Transport infrastructure; Intelligent transport system; In vehicle information; 23 Road: ITS och traffic; 23 Road: ITS och traffic; 25 Road: Traffic theory; 25 Road: Traffic theory;

    Sammanfattning : During the last decades the road traffic has increased tremendously leading to congestion, safety issues and increased environmental impacts. As a result, many countries are continuously trying to find improvements and new solutions to solve these issues. LÄS MER

  3. 2. Traffic and Road Sign Recognition

    Författare :Hasan Fleyeh; Högskolan Dalarna; []
    Nyckelord :Traffic signs; color segmentation; recognition;

    Sammanfattning : This thesis presents a system to recognise and classify road and traffic signs for the purpose of developing an inventory of them which could assist the highway engineers’ tasks of updating and maintaining them. It uses images taken by a camera from a moving vehicle. LÄS MER

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

    Författare :Roxan Saleh; Hasan Fleyeh; Darko Babić; Högskolan Dalarna; []
    Nyckelord :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;

    Sammanfattning : 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. LÄS MER

  5. 4. Laser Flare Measurements and Kinoform Applications

    Författare :Anna-Karin Holmér; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fuchs heterochromic uveitis; kinoform; hot embossing; Nd:YAG; laser machining; laser flare meter; aqueous flare; excimer; retroreflector; traffic signs; diffractive optical element; iris angiography;

    Sammanfattning : This thesis has two main parts. The first part treats the construction and use of a laser flare meter (Papers A and B). The second part deals with applications of kinoforms and consists of the sections "Kinoforms in laser machining" (Papers C and D) and "Diffractive retroreflectors" (Paper E). LÄS MER

  7. 5. Streetlife in Late Victorian London : The Constable and the Crowd

    Författare :Peter Andersson; Historia; []
    Nyckelord :HUMANIORA; HUMANITIES; London; Victorian London; streetlife; nineteenth century; urbanism; urban history; policing; police constable; performativity; everyday life; behaviour; interaction; traffic; dress; manners; class; crowd;

    Sammanfattning : This study examines the streetlife of London at the end of the nineteenth century from the perspective of behaviour and practice. In reaction to the large number of works on the Victorian city based on a study of literary sources, this thesis takes the approach of analysing social interaction in the street. LÄS MER