Navigating open spaces

What the blind find difficult are smooth, open spaces. It is just these ares whoich are assumed by many sighted people to be the best for the blind, becase there is no danger of tripping. From theblind point of view, however, a flat, open surface is not negotiable because there are no orientating signals. There is no structure. It is not predictable, because it may end at any moment., and there is no way of telling where you are, once you are on it.  The problem for the blind is not falling over, but knowing where he is. For this reason, it is easier to find my way around a camput which is marked out by steps, little hills and valleys, low walls and lots of changes in texture, because I can mark out my route with sections. The structure becomes a sequence when I am moving through it.

p.103 Touching The Rock, John Hull

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