Roel Castillo, 42, died about 7:30 a.m. Sunday morning when Michael Filius, 50, ran a red light at the intersection of U.S. 183 and Lakeline Boulevard.
Filius is charged with intoxicated manslaughter in the accident with bail set at $250,000 in Williamson County.
Filius was driving a red Ford pickup heading west on Lakeline when he ran the red light and hit the white Plymouth sedan on the driver's side.
It was the 52nd traffic fatality in Austin this year.