운전자 선호도를 고려한 고속도로 터널 내 조명디자인의 조형특성 연구

Abstract

Korea Expressway Corporation is running the manual of lighting designs in expressway longitudinal tunnel that classified by types for the purpose of improving driver’s safety from 2010. Therefore, this study evaluated driver preferences about lighting designs in expressway longitudinal tunnel and drew design elements that affect driver’s safety. After selecting the type of tunnel lighting design, we completed test pictures in each type of lighting design in the same condition of internal tunnel environment. Based on the survey conducted for drivers, their preference for each type of lighting was researched. The survey followed the 5-point Likert Scale. Based on the contents of the survey, we carried out analysis of variance, factor analysis and regression analysis. The results of the study are like following. First, drivers' preference on scenery in accordance with the type(exposure, indirect, patterned lighting) of lighting design was shown relatively high as 3.28(total average) in the positive aspect. Among them, the patterned lighting was the highest(3.47), and its positive evaluation included 'excellent visibility', 'interesting', and 'unique' that would have positive influence. Second, the factors that would have influence on drivers' sense of driving included 'peculiarity', 'order', or 'measuredness' and 'visibility'. Third, we found that the most influential factor on 'safety' during driving was 'order' or 'measuredness'. The 'order' or 'measuredness' is correlated with 'complexity', 'messiness', 'irritation' and 'quantity', which suggests what should be considered preferentially when designing and building specialized lighting. This study verified the intention to install and its utility of specialized lighting by understanding the influence of lighting design in highway tunnel. It is also significant that it has shown a design direction of lighting to build up pleasant and safe driving environment inside of tunnel, considering drivers' preference.