This 1995 image depicted a visually-impaired man with a walking stick, who was approaching the opened electronic doorway of a high-speed train from a platform, the edge of which was surfaced with a high contrast, enhanced-tactile yellow covering. A transit/subway platform, with a yellow detectable warning strip, assists people with visual impairments from inadvertently walking into hazardous vehicular routes. The tactile difference between the warning strip, and the adjacent surface, is a good textural cue underfoot, while also producing an auditory distinction, when a long cane user taps upon one surface, then the other. The contrast, and tactile distinction, are valuable for sighted users as well.
“The Center for Universal Design (CUD) is a national research, information, and technical assistance center that evaluates, develops, and promotes accessible and universal design in housing, buildings, outdoor and urban settings and related products.”
Universal Design Principles/Guidelines:
- Provisions for privacy, security, and safety should be equally available to all users
- Provide compatibility with a variety of techniques or devices used by people with sensory limitations
- Provide warnings of hazards and errors
- Discourage unconscious action in tasks that require vigilance