Where must pull straps be located on bi-parting doors?

Pull straps on bi-parting doors must be located on both the inside and outside of the door. This is essential for the safe and efficient operation of the doors. By having pull straps accessible from both sides, it allows users to easily open or close the doors, accommodating individuals in various situations—whether they are entering or exiting the elevator.

The rationale for their placement on both sides enhances usability, providing a means for both passengers and service personnel to operate the doors conveniently. This design consideration also plays a role in ensuring safety and accessibility, particularly in emergency situations where swift exit may be required.

Considering the other options, having pull straps located only on the outside would limit accessibility for passengers inside the elevator, leading to potential complications if they need to operate the doors when exiting. Similarly, pull straps available only on the inside would create access issues for individuals waiting outside the elevator. Positioning them solely on the top of the door would be impractical, as it would not provide a direct and efficient means for users to operate the doors properly.