The Americans with Disabilities Act (ADA) sets a number of standards to govern curb ramps and to determine wheelchair accessibility. Curbs create an increased likelihood of injury or accidents for people who use a wheelchair or walker. For a person with a disability, curbs without a ramp could become unusable and be considered discriminatory.

Just as societies innately understand the subtle rules of social interaction, there is also an etiquette for interacting with a blind person or someone with low vision. People with vision often struggle to interact with others who have vision impairment. People freeze, uncertain of what to do, or communicate in a demoralizing way. But that doesn’t have to be the case.

People with vision need to know how to best interact with someone who cannot see, and these social cues can be a helpful guide to making a city more accessible.

Around the world, cities and countries are working hard to make transportation accessible to the disabled. This is very apparent in South Korea, where a number of steps are being taken to ensure everyone can get where they need to go, no matter their abilities.