Traffic signal control systems comprising electronic traffic signal controllers for enabling and controlling the movement of wheelchairs, walkers, and other movement aid devices for the disabled, elderly, injured, or others through intersections and other designated areas of actual or potential traffic congestion

Installation of traffic signaling systems for enabling and controlling the movement of wheelchairs, walkers, and other movement aid devices for the disabled, elderly, injured or others through intersections and other designated areas of actual or potential traffic congestion