The AITHENA Use Case 3: Trustworthy and Human understandable Decision-making is related to the task of vehicle guidance in an automated driving software stack.

• The local environment is perceived by the vehicle’s sensors and perception algorithms, and the situation awareness modules are responsible for combining the information derived from the sensors with additional information such as map data or information received through external communication with other road users or digital infrastructure. 

Based on this information, the modules responsible for vehicle guidance need to generate reasonable decisions that lead to vehicle trajectories that are followed by application of vehicle controls.

The focus of Use Case 3 and the corresponding demonstrator is to explain decisions to the user of the system before, during, or after they are taken. It also aims to increase trust by providing a robust system that is able to handle situations in an understandable way, even when the current situation confronts the vehicle with unforeseen circumstances.