THE PROBLEM OF NON-RECOGNITION OF ROAD SIGNS HAS MANY ASPECTS WHICH ARE OF GREAT IMPORTANCE IN TRAFFIC SAFETY. CONSIDERING ALL SIGNS ON A TEST ROAD AND EYE-MOVEMENT TECHNIQUE AND RECOGNITION RATE METHOD, A TEMPORAL ANALYSIS HAS BEEN CONDUCTED FOR TWO TECHNIQUES OF DRIVING: DRIVING WITH THE TIME NECESSARY TO SEE, READ AND RECOGNIZE EACH TYPE OF ROAD SIGN, AND FREE DRIVING TO DETERMINE THE ACTUAL TIME THE DRIVER SPENDS READING THESE SIGNS. THE ACTUAL TIME SPENT PROVIDES RECOGNITION RATES, TOTALLY AND PARTIALLY, AND ALSO RATES OF NON-RECOGNITION. MANY OF THE FACTORS INVOLVED WERE INVESTIGATED AND THE ANALYSIS WAS DESIGNED TO ESTIMATE THE EFFECT OF THESE FACTORS SEPARATELY. FOR A MORE PRACTICAL USE OF THE RESULTS, A SET OF PROBABILISTIC MODELS HAS BEEN ESTIMATED TO CHARACTERIZE THE DIFFERENT DISTRIBUTIONS OF FIXATION DURATIONS. NEXT, THE PARAMETERS OF THESE MODELS WERE USED TO DEVELOP A METHOD FOR MEASURING THE EFFICIENCY-LEVEL INDEX OF THE ROAD SIGN SYSTEM.(Author/publisher).
Abstract