Not that this is directly related to your question, but am I the only one having issues with the whole reflectivity and pavement issue. I was just in Chicago for the ASLA conference and the presentation on the new Tiffany Garden specifically mentioned that they had to do a special treatment on the concrete pavement because they were having so much trouble with the glare!! We do quite a bit of work for schools and hospitals and kids and elderly are not the only people with light sensitivity and glare issues. I am hoping with the new Sustainable Sites Initiative we will have better mechanisms to use reflective surfaces where appropriate and not use them just because we want the darn point….