Evaluation Effects of Traffic Signs Application in Iranian Driver’s Perception

For each product, the manufacturer's guide for how to use it to communicate with the consumer is considered, in order to allow optimal and safe use of this product becomes available. On the highways , as well as products that are used by thousands of people’s daily, tools for effective communication between manufacturers, designers and managers with their users must be considered in addition to providing traffic safety, also provides the possibility to use highways with maximum capacity. Traffic signs are the most important tools for communication with road users. In order to transmission the messages, figures, symbols and text use in traffic signs. If the traffic sign messages which is generally provided in the form of a symbols, doesn't understand by drivers, the goals of installing traffic signs will not be meet. Perception of different traffic signs are not the same between driver’s Perceptions is different from signs to signs. In this paper, we investigated the effects of traffic signs’ application on driver’s perception. Traffic signs are categorized in three groups: “all-purpose signs”, “average usage signs” and “less common signs”. For each group, 4 traffic signs were examined. In order to evaluate and analyze, a survey study with questionnaire was designed. During five days of questioning at police station in Zanjan-Miyaneh road, 300 questionnaires were completed through interviews with drivers. For validation, similar study was carried out by filling out 40 questionnaires in Zanjan-Bijar road. The resulting data were analyzed using chi-square test and correlation coefficients test. The results showed that overall drivers’ perception of traffic signs was 53.7%.  However, driver’s perception from traffic signs are not the same and for all-purpose sign, average usage signs and less common signs was 88.3%, 49.3% and 23.3%, respectively. The results reverent that with the increasing traffic signs application, driver’s perception from traffic signs will increase and the correlation is about 0.53.