Title
Induced Demand: A Microscopic Perspective
Abstract
This paper analyzes the induced demand hypothesis using a disaggregate approach at the link level. A panel data set of Minneapolis/Saint Paul highway network for the years 1980-1998 is constructed. A model that predicts the traffic flow on the link in terms of Vehicle Kilometers Traveled (VKT) based on the flow and capacity conditions existing on the link in the previous years is specified and estimated. The flow and capacity conditions existing on the identified neighboring parallel links are also taken into account. Socio-demographic characteristics like population of the Minor Civil Division (MCD) to which the link belongs and the surrounding MCDs are also considered. The results indicate that capacity enhancements in the previous years, given by lane additions have a positive and significant effect on the VKT of the link, confirming the induced demand hypothesis. The elasticities are lower than reported in previous research, indicating the importance of separating new construction from the expansion of existing links.
Identifiers
doi: http://dx.doi.org/10.1080/0042098032000084631
Previously Published Citation
Parthasarathi, Pavithra, David Levinson, and Ramachandra Karamalaputi (2003) Induced Demand: A Microscopic Perspective. Urban Studies 40(7) 1335-1353.
Funding information
Minnesota Department of Transportation
Suggested Citation
Parthasarathi, Pavithra; Levinson, David M; Karamalaputi, Ramachandra.
(2003).
Induced Demand: A Microscopic Perspective.
Carfax Publishers.
Retrieved from the University of Minnesota Digital Conservancy,
http://hdl.handle.net/11299/179897.