Exploring the Induced Travel Effects from Minor Arterials, Auxiliary Lanes, and Interchanges
Jamey M.B. Volker,
Keuntae Kim and
Kevin Hernandez Rios
Institute of Transportation Studies, Working Paper Series from Institute of Transportation Studies, UC Davis
Abstract:
A robust body of empirical research demonstrates that as roadway supply increases, vehicle miles traveled (VMT) generally does, too. The evidence is particularly strong with respect to major roadways, like interstate highways (class 1), other freeways and expressways (class 2), and principal arterials (class 3). However, previous literature reviews have found limited empirical evidence as to the relative magnitude of the induced travel effect of expanding minor arterials, collector streets, and local roads. Previous reviews have similarly not reported empirical research on the induced travel effects of other types of roadway facilities, such as auxiliary lanes, ramps, or other types of interchanges. In this project, the authorsconducted a systematic literature review on the induced travel effects of minor arterials, auxiliary lanes, and interchanges (including simple on/off ramps). The authors found that the empirical literature remains limited with respect to auxiliary lanes and interchanges. They found eight studies that include minor arterials in their empirical estimates of induced travel, which collectively indicate that the induced travel elasticity for class 4 minor arterials could be similar to that of class 1-3 facilities. However, none of the studies isolated the induced travel effect from minor arterials specifically. Going forward, the report suggests avenues for future research to help close these research gaps. For example, the authors recommend using case studies of individual roadway expansions to better understand the induced travel effects specific to ramps, interchanges, minor arterials, and auxiliary lanes within specific contexts, especially where larger studies (across multiple facilities, geographies, etc.) have not yet been done. View the NCST Project Webpage
Keywords: Social and Behavioral Sciences; Induced travel; VMT; travel demand; road construction; traffic; arterials; auxiliary lanes; interchanges (search for similar items in EconPapers)
Date: 2025-04-01
New Economics Papers: this item is included in nep-mac and nep-tre
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