Abstract
This study describes the building and results of a digital computer simulation model which replicates the dynamic events of the signs' recognition by drivers, subject to their visual field limitations and eye-movement patterns, in different traffic conditions. This simulation model is a mathematical abstraction of several descriptive system characteristics including the roadway, the driver, the signs and the traffic conditions. The operations involved in this process include the introduction of different vehicles and signs into the system according to given rules of behaviour for sign-driver combinations. Through the evaluation of a traffic sign system, and using the efficiency-level index (ELI), modifications can be applied in order to increase its efficiency.
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