What is the ruling on the compensation legally awarded to the family of a deceased person in a car accident, and is this compensation considered diyya (blood money) in Islamic law?

Your brother's blood money is due from the driver's 'Aqilah (male agnatic relatives responsible for paying blood money), unless the accident was caused by a sudden, unavoidable malfunction, and the driver had ensured the vehicle's roadworthiness. If the accident was due to a preventable cause, it is considered involuntary manslaughter, which necessitates blood money and expiation. The compensation paid by the transport company or insurance company serves as the blood money, and there is no harm in you accepting it. The religiously mandated blood money is one thousand gold dinars or its equivalent, and you have the right to claim the full religiously stipulated amount if what was offered is less, or to accept what has been agreed upon.