Pictures of Tread Erosion installed in the MFA exhibition (http://cdt.parsons.edu/show2009/)

image by Doris Yee

image by Claudio Midolo
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Here’s a map of the space from the data gathered.
On the left is a map of numbers.  Each number relates to a pixel in the sculpture and correlates to the number of times that area was walked through.
On the right is a choropleth map showing levels of erosion in shades of grey (white = no erosion / black = highest erosion)