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Quality of Life <br /> <br />Neighborhoods with generous canopies of trees are uplifting and good for public health. <br />Greater contact with natural environments correlates with lovver levels of stress, improving <br />performance. Students' concentration levels go up vvhen they can look out onto a green <br />lar,dscape. Studies shovv that children with attention deficit disorder function better after <br />activities in green settings A green environment FJlso improves worker productivity <br />People drive more slowly and carefully through tree-lined streets, because trees create <br />the illusion of narrower streets. One study found a 46'-Y:, decrease in crash ri'ltes clcross <br />urbi:ln c:irtcriol ond highwoy sites ofter bndscZJpe improvements were instc:illed. Foster <br />drivers and slower drivers both drove at decreased speeds in the presence of trees. <br />Trees reduce noise pollution, buffering as much as half of urban noise. By absorbing <br />sounds, a belt of trees 100 feet wide and SO feet tall can reduce highway noise by 6 to <br />70 decibels. Buffers composed of trees and shrubs can reduce 50% of noise. <br />I N 11--lOUUC IO N 16