Megan Ryerson, an assistant professor in the Department of City and Regional Planning at PennDesign, and PennDesign Ph.D. student Amber Woodburn have found that since 2000, 18 of the 19 national airports that planned to expand eliminated alternatives to new runways—such as congestion pricing—from their studies. These 18 airports did not have a chance to compare the pros and cons of policy and pricing strategies against building a new runway.
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