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Lee, Douglass B.«Induced Traffic and Induced Demand».National Association of City Transportation Officials. Arxivat de l'original el 25 March 2023.[Consulta: 20 desembre 2022].
Lee, Douglass B.«Induced Traffic and Induced Demand».National Association of City Transportation Officials. Arxivat de l'original el 25 March 2023.[Consulta: 20 desembre 2022].