What are the designated floors called where phase 1 switches are located?

The designated floors where phase 1 switches are located are referred to as recall floors. This terminology specifically identifies the floors that can be accessed when a fire alarm is activated, prompting the elevators to return to these locations in order to evacuate passengers safely from smoke or fire hazards. Recall floors typically include ground and lobby levels, as well as other designated areas depending on the building's fire safety plan. Understanding the function of recall floors is essential for operation and safety protocols in elevator systems, especially in high-rise buildings, where prompt and organized evacuation is critical during emergencies.