*3.2. Photograph Experiment*

Pedestrians in the pictures were deleted for the streetscape research. Therefore, this excludes locations where photo correction could not be performed in the future due to the narrow width and large floating population. The shooting was done on a clear day with a Canon D100 camera and an 18 mm lens at a height of 1.5 m at the center of the street or at the center of the walkway. When a person walked on the street, the streetscape structure changed frequently, depending on where the person was or according to the movement of the head. However, due to the nature of walking forward, the eyes were mostly fixed towards the front. Therefore, in this study, the photo was taken from the center of the street (sidewalk) pointing to the front, assuming that the pedestrian stared at the center of the street or the center of the pedestrian path. For one month in September 2019, the researchers visited the site in person, and a total of 133 photos were taken. Thereafter, a total of 23 photos were selected for the eye-tracking experiment through a screening process, and in the analysis of this study, 17 photos were finally selected except for photos without signs (Table 2). Based on the pixel area, images with more than 10% signboard area compared to the total area were grouped as high sign groups (HSG), and images with less than 10% are selected to be low sign groups (LSG).

**Table 2.** Photos and pixel of signboards. High Signs Group (HSG): 1, 2, 7, 8, 9, 13 and Low Signs Group (LSG): 3, 4, 5, 6, 10, 11, 12, 14, 15, 16, 17.

