As an Orientation and Mobility Specialist, I teach people with vision loss or blindness how to navigate their world independently using a multisensory approach. Auditory feedback of their environment is increasingly important for decision-making skills, particularly when initiating a safe street crossing, crossing driveways, and when navigating parking lots. People who are blind or have limited vision are very dependent on their auditory skills and the noise of the car's engine.
I am wondering what is being done for individuals who depend on the sound of idling or driving vehicles for safe navigation when it is most important to avoid serious bodily injury or worse?
Are Autonomous vehicles expected to be silent or have some auditory output when idling and driving?