The article is devoted to the study of aspects of information interaction of the driver subsystem while driving a vehicle. The purpose of writing the paper is to publish the unified information model of interaction of the "Driver"subsystem with other subsystems of the classical "Driver-Vehicle-Road-Environment"system proposed by the author. In the article the author analyzes the information signals coming to the driver from the controlled vehicle, the road, the environment, including other participants of the road. The author builds channels of information interaction between individual subsystems "Driver - Vehicle - Road - Environment". The proposed changes the author presents in the form of a unified holistic information system "Road user -Vehicle-Road-External Environment". The scientific novelty lies in the possibility to carry out the analysis and modeling of the information exchange between the driver and other subsystems "road user - vehicle - road - environment"in order to prevent and predict road accidents. © 2022 IEEE.