Doors, Elevators & Escalators
- Infrared (IR) Presence Sensors on Swinging Doors
 - Automatic Doors – Info about automatic doors including Free Revolving Door kinetic Energy Calculator program; Active infrared (IR) sensors for swinging doors; Kinetic energy equations in ANSI A156.27-2003 in error
 - Automatic Door Expert Witness – Davis & Associates. Free initial consult.
 - Elevator & Escalator Consultant/Expert Witness – Charles A. Buckman, CSS, CEI
 - Elevator & Escalator Accident Reconstruction & Litigation (Book)
 - Elevator Law & Liability (Book)
 - ElevatorBooks.com – Over 100 books for elevator industry professionals, architects, building owners and maintenance professionals, builders, manufacturers, educators, students and other industry professionals.
 - The Elevator Escalator Safety Foundation
 - Examining Escalator Steps
 - Deaths and Injuries Involving Elevators and Escalators
 
