Waymo is pulling the human safety driver from its autonomous test vehicles in Nashville, as the Alphabet-owned company moves closer to launching a robotaxi service in the city.

Waymo, which has been testing in Nashville for months, is set to launch a robotaxi service there this year in partnership with Lyft. Riders will initially hail rides directly through the Waymo app. When the service expands, Waymo will also make self-driving cars available through the Lyft app. Lyft said it will manage fleet services, such as vehicle availability and maintenance, charging infrastructure, and depot operations, through its wholly-owned subsidiary Flexdrive.

Waymo is accelerating its robotaxi expansion and currently operates commercial services in Atlanta, Austin, Los Angeles, Miami, the San Francisco Bay Area, and Phoenix. It also has driverless test fleets in Dallas, Houston, San Antonio, and Orlando.

The company tends to follow the same launch strategy in each new market, starting with a small fleet of manually driven cars to map the city. Autonomous cars are then tested by a human safety operator in the driver’s seat. Eventually, the company conducted driverless tests, often allowing employees to ride on ice, before launching a robotaxi service.