What are the three major sub-tasks in the Driving Task Hierarchy?

The three major sub-tasks in the Driving Task Hierarchy are indeed Control, Navigation, and Guidance.

Control refers to the vehicle's operational commands, which include acceleration, braking, and steering. This sub-task is vital for maintaining the vehicle’s stability and ensuring it follows the intended path safely.

Navigation focuses on the route selection and managing the driver’s awareness of surroundings and potential obstacles. This ensures that the driver is aware of where they need to go and how to get there effectively, factoring in both static routes and dynamic changes in traffic conditions.

Guidance is about providing the driver with necessary information to make decisions effectively. This sub-task involves interpreting various signals and cues, both from the environment and in-vehicle navigation systems, to ensure safe and efficient travel.

Understanding these components helps traffic engineers and planners improve road safety and efficiency, as addressing each element can lead to more comprehensive driver assistance systems and better traffic management strategies.