Scenario1

Scenario 1:

 * Elderly **

On December 15th, 2009, Grace traveled to York dale mall on her weekly shopping trip. Grace is 67 years old and has a passion for shopping for all the new styles for seniors. On Monday Grace shopped more than usual because Christmas was around the corner. Grace had her hands full with numerous shopping bags. Her last trip was on the third floor, she decided to take the escalator because of its close distance. Grace steps towards the escalator and stares at the moving steps. She attempts to step onto the moving stairs several times, and then waits for a safe chance to enter. Grace isn’t able to hold on to the bars to keep her balance because of the shopping bags. The people behind Grace waiting to ride the escalator become agitated with the hold up. Grace becomes embarrassed and nervous and tries to hurry up because of the flustered shoppers. She quickly steps onto the flat moving surface, but the surface changes and she accidentally steps on the crease where the steps separate. Grace loses her balance and isn’t able to hold on to the bars, resulting in her foot sliding down off the crease of the step. She falls and her whole body hits against the sharp, jagged, and rough surface of the moving staircase. Grace suffered numerous injuries, resulting in broken bones. The areas with the most injury are her hips, legs, and elbows.

Grip stairs Hand rail Feeder Steps Ridges Sensors Escalator that seats individuals Lighting Speed changes
 * Must have:**
 * Should have:**
 * Could have:**
 * Want to:**