Subway operators drive commuter trains that run below city streets. Streetcar operators drive electric-powered trains that move on tracks on streets.

Operators drive subways underground and elevated trains that run on tracks above city streets. Some subway trains emerge from underground to run along the surface for part of their route.

Subway and streetcar operators open and close doors so that passengers can get in and out. They monitor the time to determine if they are on schedule. When they are late, they may contact dispatchers or supervisors by radio.

Operators attend meetings on driver and rider safety. They complete reports about their shift. They fill out reports when there are accidents or incidents such as fights on their vehicles.

Both subway and streetcar operators obey signals while operating their vehicles. Subway operators use signals to know when they can enter tunnels. Streetcar operators obey the same traffic signals as cars and buses. Streetcar operators watch for pedestrians and other drivers.

A major difference between subway and streetcar operators is the amount of contact they have with passengers. Subway operators rarely speak to passengers. They have an area to themselves at the front of the train.

Streetcar operators have a lot of contact with passengers. They greet passengers and receive fares. They make change and give transfer passes. They answer questions and explain routes, fares, and schedules. They may resolve conflicts with passengers.