He was killed in a car accident.

He lost his life in a traffic accident.

He got killed in an automobile accident.

Source: Tatoeba

Her son was killed in a traffic accident.

Source: Tatoeba

There's probably been a traffic accident.

Source: Tatoeba

He notified the police of the traffic accident.

Source: Tatoeba

The number of traffic accidents seems to be on the increase.

Source: Tatoeba