A woman convicted of killing three kids at a bus stop on State Road 25 in Rochester has filed a formal appeal.

Alyssa Shepherd wants an appeals court to dismiss her convictions and order a new trial.

Shepherd says she thought the flashing lights of the school bus were actually from an oversize load vehicle when the collision happened in October 2018.

She claims she didn’t think she was passing a school bus until it was too late and made an error in judgment.

Shepherd was sentenced to four years in prison last December.