Public rides in Dallas are slated to begin next year. In the meantime, here's everywhere the self-driving service operates now, and where it's set to arrive in the future.

Dallas will become the sixth U.S. city to offer the service, joining Austin, Atlanta, Los Angeles, Phoenix and San Francisco.

Dallas driver Devin Downey, who owns a Tesla, says he’s a little nervous about this, especially after testing out his own car's self-driving feature.