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Effects Of Comprehensive Plan Amendments On Interchange Traffic In Oregon, James G. Strathman, Thomas J. Kimpel, Paul Roland Leistner, Kenneth Dueker

Center for Urban Studies Publications and Reports

In this paper we examine the effects of amendments to local comprehensive plans on interchange performance. Plan amendments over a 15-year period in Oregon resulting in changes to industrial or commercial land use were reviewed to identify those that occurred within one mile of an interchange. Regression analysis was then performed to estimate the impact of nearby plan amendments on subsequent interchange ADT. Plan amendments were found to have a substantial ADT effect on rural interchanges, but their incidence was very limited. In urban core areas, the estimated effect of plan amendments was negligible, possibly due to interchange congestion or …