What do runway/runway hold position signs indicate?

Runway/runway hold position signs are specifically designed to indicate the presence of intersecting runways. These signs are crucial for pilot awareness and ground safety, ensuring that pilots know when they are approaching a point where their runway intersects with another. By informing pilots of this intersection, the signs help prevent runway incursions—situations where an aircraft inadvertently enters a runway that another aircraft is using or preparing to use.

The other options do not accurately reflect the purpose of runway/runway hold position signs. For instance, while available services on the runway and the location of emergency equipment are important aspects of airport operations, they are indicated by different types of signs or markers. Runway closures are typically communicated through NOTAMs (Notices to Airmen) rather than through specific signage, which helps differentiate the distinct roles of various airport signs and markers. Understanding the function of these signs is vital for maintaining safe operations in the vicinity of runways.