links

http://www.sensitivebrigade.com/auditorywarnings.html
 * Great site about auditory signals:**

[|http://go.konespares.com/parts/escalator-info.aspx]
 * Aspects of an escalator:**

http://abcnews.go.com/gma/consumer/story?id=2530368
 * DO NOT WEAR CROCS ON ESCALATORS!**