Explain the role of hold-open logic versus a soft-stop in ensuring pedestrian safety.

• A. Hold-open is a manual feature; soft-stop is automatic only
• B. Hold-open maintains a safe open interval for pedestrians; soft-stop reduces abrupt deceleration to minimize injury risk
• C. Hold-open reduces open interval; soft-stop increases deceleration
• D. Hold-open only applies to doors; soft-stop only to gates

Answer: (B)

Pedestrian safety relies on two complementary functions: keeping a safe opening available for people to pass, and smoothing the motion as the gate or door closes so there’s no abrupt, injurious stop.

Holding open the gate or door creates a safe open interval. It ensures the path remains clear long enough for pedestrians to cross or wait without the door or gate closing prematurely. This is about giving people time and space rather than forcing a hurried departure.

A soft-stop, on the other hand, is about how the system finishes the movement. Instead of a hard, abrupt halt at the end of closure, the motion is decelerated gradually. This reduces the peak forces that a person or object would experience if they were in the vicinity of the closing edge, lowering the risk of injury.

Together, hold-open logic provides the safe window, and soft-stop provides a gentler stop to minimize injury risk if contact occurs. The other statements misstate these roles: hold-open isn’t necessarily manual and can be automatic; soft-stop isn’t limited to one type of device; and hold-open doesn’t reduce the open interval or imply that soft-stop only applies to gates.