Center for Activity Systems Analysis

This paper replicates the research on non-work automobile trip generation and land use conducted by Boarnet & Crane (1999) and Boarnet & Sarmiento (1998) for the Portland, Oregon, region. Additionally, new variables examining New Urbanist arguments are incorporated. The results suggest that any links between land use and non-work trip behavior act primarily by influencing trip costs, in terms of distances traveled and speeds achieved, rather than directly influencing the number of trips made. This analysis is consistent with Boarnet and Crane and Boarnet and Sarmiento, suggesting that this model is not sensitive to errors that might arise due to the unique characteristics of the urban area under review.