1. Surrounding the pole with spongy cushiony material should make the echolocation very difficult (even with clicking
2. Having a line run perpendicular to line of travel a few feet short of the pole will warn the user that he's reached the end.
Subjects' vision and hearing are occluded.
A pole in the center of the course would not work. I believe that the 32 foot course will have a single suspended string of lights. The poles are anchored at the top and bottom.
The single forward pole at the end of the course should not interfere at all. It will be padded, of course, and subjects may encounter it when the course is completed.
Does that all make sense.
Steven's office and it looks great.
The starting pole will have a wood block or similar on the pole or on
the floor to help subjects square off. Both poles are wrapped in foam
to prevent injury.