Final answer:
The train operator should immediately report the smoke to the control center and follow established safety protocols, which may include evacuating passengers and using fire extinguishing equipment if trained and safe.
Step-by-step explanation:
If a train operator is informed that there is smoke coming out from under his train which is making a regular train stop, he should immediately assess the situation to determine the severity of the issue. The operator should first inform the control center of the situation and follow the established safety protocols. This likely includes evacuating passengers in a calm and orderly manner if there is a potential fire, and using on-board fire extinguishing equipment if trained and it's safe to do so. The operator's primary responsibility is the safety of the passengers and crew. Until professionals assess the situation, it's crucial to keep a safe distance and prevent any actions that could aggravate the situation.
Stop the train: The safety of the passengers and crew is the top priority. Stopping the train will prevent any potential fire or further damage.
Evacuate the train: If there is smoke coming from under the train, it indicates a potential fire. Passengers should be safely evacuated to prevent any harm.
Notify the authorities: The train operator should immediately contact the appropriate authorities, such as the fire department or railway control center, to report the situation and seek further assistance.