What precautions should be taken when taxiing in low visibility conditions?

Using taxi lights and communicating clearly with air traffic control is crucial when taxiing in low visibility conditions. The purpose of taxi lights is to enhance the aircraft's visibility to ground personnel and other aircraft, which is essential when visibility is compromised. This helps ensure situational awareness for both the crew and others on the ground. Additionally, clear communication with air traffic control (ATC) is vital in low visibility to receive instructions regarding taxi routes and to confirm the aircraft's position, minimizing the risk of miscommunication and potential accidents.

The other considerations, such as reducing speed and avoiding sudden movements, are also important practices for maintaining safety during taxi. However, they do not directly address the core issues related to visibility. Increasing altitude would not be applicable in a taxiing context, as aircraft are on the ground during this phase of flight. Shutting down non-essential systems might be a safety practice but does not specifically enhance visibility or improve the aircraft's operational performance during taxi in low visibility conditions.