Journal
BALTIC JOURNAL OF ROAD AND BRIDGE ENGINEERING
Volume 6, Issue 1, Pages 12-16Publisher
VILNIUS GEDIMINAS TECH UNIV
DOI: 10.3846/bjrbe.2011.02
Keywords
road design; control system; information processing; decision making; system model; design quality
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Traffic safety can be defined as the quality of driving task outcome, which in its turn depends on factors within the system Driver-Vehicle-Road Therefore, if analyzing concept of traffic safety from viewpoint of driving task, it must include relationships following from interactions among all the system elements. To understand these relationships and fix essential factors and elements, which must be taken into account, when making design solution or analyzing it, the system model was established. Based on this model the system functioning was analyzed. Results obtained explain importance of content and quality of information in sources from which driver obtains it for decision making. It was also established, that visual road image is the main information source for decision making in situation, where the traffic flow influence is small. Therefore, content and quality of this information, contained in road image, visible for driver, is formed and must be checked during design process.
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