Today, I walked in the art and story building. While looking up, I found that at the end of each corridor and at the intersection, there will be a spherical mirror that allows people to observe pedestrians from different directions. I have never paid attention to those details, but it will bring great help to people with disabilities. They can observe in advance whether there is a pedestrian passing in the direction of the dead corner to respond in time.
Observation of Accessibility / Usability in Everyday Life 