In the response - time example of Section 1.1 , the time from observing a passenger between the closing door blades and starting to reopen the elevator door varies between 305 and 515 ms. How could you further justify if these particular times are appropriate for this situation?

Example: Where a Response Time Comes From An elevator door (Pasanen et al., 1991) is automatically operated, and it may have a capacitive safety edge for sensing possible passengers between the closing door blades. Thus, the door blades can be quickly reopened before they touch the passenger and cause discomfort or even threaten the passenger's safety. What is the required system response time from when it recognizes that a passenger is between the closing door blades to the instant when it starts to reopen the door?