In / out lights (Digital Type): it helps users to relieve anxiety by providing a digital-format time display for users to predict the time the car will be out. In addition, it offers simple information about car types in order to distinguish the car. In / out lights (Analogue Type): it provides an emotional design of time that helps users to perceive when the car will be out. This will offer the user information about the time and a relaxing waiting time. Direction indicating lights: it does not only use the basic direction with text and red / green colored lights, but it also contains a pictogram to help the users to perceive the information more intuitively.