r/artificial - Why do navigable objects require artificial intelligence to traverse an ordered environment?

Hi, my group and I are coding a navigable object (a toy car) to traverse an ordered environment based on the modern street system for our capstone project. And we got stumped on whether to use a Jetson board for AI or to use a regular Raspberry Pi for image processing. Now the reason we might not go with AI is because we have trouble finding a reason for AI when the object is traversing an ordered environment. Which is the reason why I'm making this post, because companies that build Autonomous cars use AI and there are loads of research for AI and navigation (but its mostly for clustered environments). So what specific reason is AI needed for cars in the modern road.