The positions responsible for visually scanning the runway are ______.

The position responsible for visually scanning the runway is assigned to both Local Control and Ground Control. Local Control primarily manages the active runway and must maintain situational awareness regarding aircraft movements, including take-offs and landings. This entails visually scanning the runway to ensure safety and to effectively convey information to pilots. Ground Control is responsible for managing aircraft and vehicle movements on the taxiways and other ground areas, requiring them to maintain awareness of any aircraft that might be on the runway or preparing to enter it.

Both positions must communicate and coordinate closely, ensuring the runway is clear and safe for operations, which reinforces the necessity for visual scanning by each. Their collaborative efforts are crucial in preventing runway incursions and ensuring overall operational safety.