A truncated dome is a type of tactile paving used primarily to assist individuals with visual impairments. These domes are raised, rounded shapes that are typically made from materials like concrete or plastic. They are often found at the edges of sidewalks, transit platforms, and other areas where pedestrians may need to be alerted to potential hazards. The design of truncated domes helps to provide a tactile warning when someone walks over them. The texture and shape can be easily felt underfoot, signaling to users that they are approaching a change in their environment, such as a street crossing or a platform edge. This feature enhances safety and accessibility for people with disabilities.