If instructed by ground control to taxi to Runway 9, where may the pilot proceed to if further clearance is required?

When a pilot is instructed to taxi to a specific runway, such as Runway 9, and later determines that further clearance is required—perhaps due to a need to communicate with air traffic control regarding a change in plans or conditions—the pilot may consider proceeding to the next intersecting runway. This option allows the pilot to be in a position where they can safely communicate with ground control without obstructing traffic or putting themselves in potentially hazardous conditions.

Intersections on taxiways typically provide safe areas for aircraft to hold without interfering with the flow of other aircraft. By proceeding to the next intersecting runway, the pilot maintains compliance with air traffic control instructions while also taking proactive measures to avoid any conflicts or confusion. This ensures that they can manage their situation appropriately while remaining safe and compliant with operational protocols.

In contrast, moving to the nearest gate or back to the ramp may not be immediately feasible or safe depending on the airport layout and traffic situations. Going to the previous runway would not adhere to the command given by ground control and could lead to miscommunication and potential safety issues. Thus, proceeding to the next intersecting runway is the most logical and safe choice in situations where further communication is required.