PhillyTreeMap lets people map not only street trees, but also those on private property -- the big old oak in the backyard or the walnut in the neighbor's garden. This broader picture of the urban forest will allow planners to direct tree-planting efforts where green cover is needed most. For example, Philadelphia is about 20 percent vegetated, though about half of the city can support trees.
PhillyTreeMap can also help the city keep up to date on progress towards achieving the mayor's "GreenPlan" of 300,000 trees by 2015.
PhillyTreeMap is a web mapping application that solicits citizen input, similar to the successful OpenStreetMap. Robert Cheetham started the project two years ago when he won a government grant for the idea. Since then, PhillyTreeMap has grown to encompass a database of over 144,000 Philadelphia trees and an open source code base.
Crowd-sourced geotagged information is all the rage these days, with people submitting tips, opinions, and complaints on everything from graffiti to potholes.PhillyTreeMap not only allows people to site trees on a map, helping street crews and parks that maintain them.
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