With more than 10,000 downloads in the U.S., i-Tree calculates the environmental and economic benefits of planting trees.
Based on an analysis by i-Tree, a software program developed by the U.S. Forest Service in partnership with Davey Tree company, street tree coverage in Pittsburgh, Pa. confers $2.4 million in environmental and aesthetic value per year to the city.
I-Tree calculates the carbon sequestration potential of each tree planted and the economic benefits of air pollution reduction. Its next version will also be able to analyze how urban forests affect air temperature, ultraviolet ray penetration and bird habitat.
Using i-Tree, the environmental nonprofit Tree Pittsburgh figured out that the city received $3 in benefits for every dollar it invested in urban forestation. In response, the city developed a new master plan to replenish its canopy, which is at half the recommended coverage now.
I-Tree is designed to be usable by anyone and exists in mobile as well as desktop version.
FULL STORY: That tree in the corner may be worth more than your house
What's a Tree Worth?
The U.S. Forest Service has continued to refine the valuable i-Tree software program, which allows cities to calculate the benefits, in dollar figures, of the urban forest.
Adaptive Reuse Booming in Pittsburgh
The city is seeing rapid growth in residential development in its downtown core, signaling a shift to accommodate a reduced need for office space and a renewed interest in mixed-use, transit-oriented neighborhoods.
Zoning Changes, Federal Funds Enable Adaptive Reuse Program in Pittsburgh
Funding and zoning changes are likely necessary but insufficient on their own, to borrow a phrase from Nolan Gray. Pittsburgh hopes to deploy both to spur adaptive reuse in the city.
The Right to Mobility
As we consider how to decarbonize transportation, preserving mobility, especially for lower- and middle-income people, must be a priority.
Early Sharrow Booster: ‘I Was Wrong’
The lane marking was meant to raise awareness and instill shared respect among drivers and cyclists. But their inefficiency has led supporters to denounce sharrows, pushing instead for more robust bike infrastructure that truly protects riders.
Push and Pull: The Link Between Walkability and Affordability
The increased demand for walkable urban spaces could make them more and more exclusionary if cities don’t pursue policies to limit displacement and boost affordability.
Opinion: Connecticut Vision Zero Bill A Step in the Right Direction
The proposed legislation could energize efforts to eliminate fatal crashes and fix the structural flaws that make roads inherently more dangerous.
Tacoma Developing New Housing Policy
The city’s Home in Tacoma plan is designed to address the region’s growth and rising housing prices, but faces local backlash over density and affordability concerns.
Green Alleys: A New Paradigm for Stormwater Management
Rather than shuttling stormwater away from the city and into the ocean as quickly as possible, Los Angeles is now—slowly—moving toward a ‘city-as-sponge’ approach that would capture and reclaim more water to recharge crucial reservoirs.
Town of Palm Beach
Texas A&M AgriLife Extension
York County Government
HUD's Office of Policy Development and Research
HUD's Office of Policy Development and Research
Harvard GSD Executive Education
City of Fitchburg, WI
City of Culver City
Sonoma County Transportation Authority
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
