In recent years, many large conservation plans -- including the plan that led Australia to ban fishing on a third of the Great Barrier Reef -- were produced using a computer program called Marxan. Software developer and Australian professor Hugh P. Possingham is now raising questions about the validity of the software in certain circumstances, Second Thoughts for a Designer of Software That Aids Conservation
In recent years, many large conservation plans -- including the plan that led Australia to ban fishing on a third of the Great Barrier Reef -- were produced using a computer program called Marxan.
Software developer and Australian professor Hugh P. Possingham is now raising questions about the validity of the software in certain circumstances, Second Thoughts for a Designer of Software That Aids Conservation (New York Times).
In a recent study, Possingham found that unless the software recommendations are implemented within 12 months, the software is less accurate than the rules of thumb that conservationists typically use "in the dark, primitive pre-software days."
"In nearly every case, the simple rules performed better than the optimal plan. Even the simplest opportunistic decision-making - buying any available property that sheltered some species of concern - performed just about as well as the optimal plan. Dr. Andelman said she was surprised at how badly the plan performed and how quickly it became useless compared with the simple rules. "
Sure, I'm an advocate of technology. But I think some sort of scientific evaluation of planning support systems is sorely needed. As more cities and counties turn to technology to help advise policymakers about the best planning decisions, we -- as the planning community -- need confirmation that the technology we are using really does lead to better planning decisions.

Manufactured Crisis: Losing the Nation’s Largest Source of Unsubsidized Affordable Housing
Manufactured housing communities have long been an affordable housing option for millions of people living in the U.S., but that affordability is disappearing rapidly. How did we get here?

Americans May Be Stuck — But Why?
Americans are moving a lot less than they once did, and that is a problem. While Yoni Applebaum, in his highly-publicized article Stuck, gets the reasons badly wrong, it's still important to ask: why are we moving so much less than before?

Using Old Oil and Gas Wells for Green Energy Storage
Penn State researchers have found that repurposing abandoned oil and gas wells for geothermal-assisted compressed-air energy storage can boost efficiency, reduce environmental risks, and support clean energy and job transitions.

Updating LA’s Tree Rules Could Bring More Shade to Underserved Neighborhoods
A new USC study finds that relaxing Los Angeles’ outdated tree planting guidelines could significantly expand urban tree canopy and reduce shade disparities in lower-income neighborhoods, though infrastructure investments are also needed.

California's Canal Solar Projects Aim to Conserve Resources and Expand Clean Energy
California’s Project Nexus has begun generating electricity from solar panels installed over irrigation canals, with researchers and state agencies exploring statewide expansion to conserve water and boost clean energy production.

HHS Staff Cuts Gut Energy Assistance Program
The full staff of a federal program that distributes heating and cooling assistance for low-income families was laid off, jeopardizing the program’s operations.
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.
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