When an aircraft is cleared for reverse high speed, which taxiway is least likely to be used?

When an aircraft is cleared for reverse high speed, the taxiway least likely to be used is M6 because it is generally a taxiway positioned near the departure areas, rather than being designed for high-speed operation during reverse taxiing. Taxiways that are built for high-speed operations tend to have less congestion and better access to runways, whereas M6 may be closer to other operational areas, making it less suitable for such maneuvers.

In contrast, the other taxiways, such as M1, M2, and M4, are typically designed to accommodate various taxiing operations, including high-speed activities, with appropriate pavement characteristics and configurations that support such operations. Therefore, aircraft are more likely to utilize these taxiways during a high-speed reverse taxi. Understanding the layout and function of different taxiways at YVR is crucial for safe and efficient aircraft movement on the airside.