Estimating vehicle trips at mixed-use developments can be challenging. Most traditional trip generation rates are based on single-use suburban sites and don’t account for how people actually travel in mixed-use developments (MXD), where trips can happen internally or by walking, biking, or transit.

This white paper presents how we recalibrated and validated our MXD tool to reflect 2019 travel conditions. The update incorporates changes in travel behavior over the past decade, including the rise of ride-hailing services, e-commerce, telecommuting, and micromobility.

Using observed traffic data from mixed-use sites across the US, the updated MXD model produces more accurate estimates of daily and peak-hour vehicle trips, helping planners and communities better evaluate the transportation impacts of mixed-use developments.