What service allows elevators to operate without responding to floor call buttons during an emergency?

The term that describes the operation of elevators during an emergency without responding to floor call buttons is known as Independent Service. This mode is designed to enhance safety by allowing the elevator to function under controlled circumstances when an emergency situation arises, such as during a fire or other critical incidents.

In Independent Service, the elevator will only respond to commands from the fire department or designated personnel, preventing the risk of passengers being trapped or an elevator malfunction due to uncontrolled floor calls. This service is crucial for enabling emergency responders to effectively access different floors without interference, ensuring a direct and safe transportation route to carry out rescue or firefighting operations efficiently.

Other options like Emergency Service usually relate to specific provisions in case of power failures or emergency protocols, and Rescue Mode often refers to a particular functionality activated to assist in evacuating individuals from an elevator during an emergency.