What is typically the leg length for a holding pattern at or below 14,000 feet?

The standard leg length for a holding pattern at or below 14,000 feet is one minute. This duration is designed to create a consistent and manageable holding procedure that allows for effective traffic management in controlled airspace. In a holding pattern, the aircraft makes a series of turns, and the one-minute leg time helps ensure that spaced aircraft can enter and exit the pattern without excessive delay or risk of congestion. The one-minute standard facilitates easier timing calculations for air traffic controllers, allowing them to efficiently manage multiple aircraft within their jurisdiction.

The other options suggest longer or shorter leg times, which would not conform to the established standard for typical holding patterns at these altitudes. Each alternative leg length would impact the flow of traffic and complicate maneuvering in the busy airspace, especially in regions with high traffic volumes.