This review aims to identify measures suitable for evaluation of usability for road safety facilities. A review of literature included articles that evaluated a road safety facilities for usability. Electronic databases, hand searches and internet sou...
This review aims to identify measures suitable for evaluation of usability for road safety facilities. A review of literature included articles that evaluated a road safety facilities for usability. Electronic databases, hand searches and internet sources were used. A total of 7 articles of usability evaluation of road safety facilities were retrieved through a search for an electronic databases, hand searches and internet sources, and evaluation criteria and evaluation methods were summarized. Quantitative evaluation criteria included ‘Error Rate’, ‘Completion Time’, ‘Visibility’, ‘Psychological Pressure’, ‘Visual Confusion’, ‘Eye Fatigue’, and ‘Satisfaction’. All of them were measured by the questionnaire method. And Qualitative evaluation criteria were ‘the Reason for Cognitive Error’ and ‘the Risk’ measured by interview method. There are limits of 7 articles that do not constitute a real environment or a virtual environment or experiment that tests real users to ensure usability in actual environment. In order to systematically evaluate the usability of road safety facilities in the future, it is necessary to categorize the evaluation criteria according to the purpose of evaluation, to derive appropriate evaluation methods for each category, and to construct a real environment or a virtual environment and to develop scenarios for the validity about evaluation.