Syns jag bättre med en gul plexiglasskiva framför strålkastaren?

Syns jag bättre med en gul plexiglasskiva framför strålkastaren?: en studie om motorcyklisters synbarhet i trafiken

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Approximately half of the motorcyclists that are killed or injured occur when interacting with other vehicle-users. These accidents are typically intersection, head-on or rear-end collisions. A contributing factor to these collisions can be the difficulties that other road users have in detecting the motorcyclists and thereby correctly deducing their position and speed. All motorised vehicles in Sweden have a mandatory daylight running lights (DRL) requirement. The main purpose of this project was to examine possibilities of increasing the conspicuity of motorcyclists by using a yellow Plexiglas disc or sheet (yellow glass) placed in front of the motorcycle’s headlight. The project comprised four studies viz. 1) a field study, 2) a laboratory study, 3) an interview study and 4) a questionnaire study. The results from the field and laboratory studies suggest that the maximum amount of conspicuity is achieved when yellow and white light are combined; one with yellow and one without. The results from the interview and questionnaire studies show that the motorcyclists that drive with the yellow glass, perceive that their own conspicuity had increased. They believe that they are detected by other road users earlier and more easily especially in certain traffic environments and ambient lighting/weather conditions. This had also contributed to an increased sense of security by the yellow glass group. Am I more conspicuous with yellow glass? The results from this project suggest that the answer is yes, in certain circumstances. This must however, be qualified by the limitations of the studies in this project where all traffic situations, weather conditions and lighting conditions have not been assessed.

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