作者: Robert Cervero
DOI: 10.1080/01944360308976303
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摘要: Abstract Claims that roadway investments spur new travel, known as induced demand, and thus fail to relieve traffic congestion have thwarted road development in the United States. Past studies point a significant demand effect. This research employs path model causally sort out links between freeway increases, using data for 24 California projects across 15 years. Traffic increases are explained terms of both faster travel speeds land use shifts occur response adding lanes. While confirms presence short longer run, estimated elasticities lower than those earlier studies. also reveals “induced growth” investment” effects—real estate gravitates improved freeways, spawn over time. Travel-forecasting models needed account these dynamics.