What is the term for a specific location that a roadway worker must travel to upon receiving a watchman's warning?

The term that refers to the specific location a roadway worker must travel to upon receiving a watchman's warning is the Pre-Determined Position of Safety (PPOS). This concept is crucial in the context of roadway worker protection as it designates a safe location where workers can quickly retreat in response to potential hazards or warnings communicated by watchmen.

Having a Pre-Determined Position of Safety allows for a clear understanding among workers about where to move when alerted, thus minimizing confusion and ensuring that everyone has a common knowledge of safety protocols. This preparedness is vital for maintaining safety in roadway work environments where risks can arise suddenly.

The other options do not specifically relate to the protocol established for workers in reaction to a watchman's warning. For instance, a Safety Zone may refer to a broader area designated for safe activities but lacks the specific urgency tied to a watchman’s alert. An Emergency Station could imply a location for emergencies but isn't defined as a pre-determined safe spot specifically for responding to watchman warnings. Designated Safe Area tends to indicate a general safe space without the explicit focus on watchman communications. Therefore, the PPOS is the most precise term in this context.