What action is most appropriate if you see a steady green light from the tower?

When you see a steady green light from the tower, it indicates that it is safe for you to proceed. This signal typically means that you have permission to move forward with your vehicle operation in the airside environment.

Proceeding with caution is important because, even with the green light, there may be other factors to consider, such as other moving vehicles or aircraft on the airport surface. It's essential to maintain awareness of your surroundings and to ensure that it is indeed safe to continue. This aligns with standard operating procedures that prioritize safety while navigating the airport grounds.

The other options do not align with the meaning of a steady green light. Stopping your vehicle would be an unnecessary response to a signal indicating it is safe to proceed. Clearing the runway is not applicable as the steady green light indicates permission for movement, not a need to vacate the area. Taking off immediately would also be inappropriate, as this signal pertains to vehicle movement rather than aircraft operations.