Red light accidents are tricky and each one is assessed on its particulars. Usually, regardless of the other vehicle's actions, if you are judged to be able to

Red light accidents are tricky and each one is assessed on its particulars. Usually, regardless of the other vehicle's actions, if you are judged to be able to avoid an accident, and you don't, you are being careless, hence at fault. A lot of jurisdictions have "no-fault" legislation however that gets in the way with regards to insurance.