Ramps and mechanical appliances for the physically impaired, aged, and handicapped shall be exempt from all of the lot, yard, and building regulations as they may be necessary to carry out the passage of ingress and egress. Sites, facilities, buildings and elements may be made accessible to and usable by people with such physical disabilities as the inability to walk, difficulty walking, reliance on walking aids, blindness and visual impairment, deafness and hearing impairment, in coordination, reaching and manipulation disabilities, lack of stamina, difficulty interpreting and reacting to sensory information, and extremes of physical size. The intent of these sections is to allow a person with a physical disability to independently get to, enter, and use a site, facility, building, or element as it may be necessary to carry out the passage of ingress and egress.