Green streets have also enhanced pedestrian safety by shortening crossing distances, and are sometimes considered to slow traffic. Neighbours consider them a real asset to the neighbourhood because they provide water quality and habitat benefits and increase property values. As of 1 July 2010, Portland had a total of 250 projects for over 12 acres. Since 2008, nearly 100 incentive projects have been accepted for an additional 5.6 acres, despite the recession and economic downturn.