Sökning: "traffic signs"
Visar resultat 1 - 5 av 22 avhandlingar innehållade orden traffic signs.
1. Cooperative Variable Speed Limit Systems : Modeling and Evaluation using Microscopic Traffic Simulation
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
2. Traffic and Road Sign 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
3. Analysis of Retroreflection and other Properties of Road Signs
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
4. Laser Flare Measurements and Kinoform Applications
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
5. Streetlife in Late Victorian London : The Constable and the 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