An examination of factors affecting propensities to use bicycle and pedestrian facilities in suburban locations

The US federal Congestion Mitigation and Air Quality program was created to fund transportation projects that have the potential to contribute to the attainment or maintenance of the National Ambient Air Quality Standards. This study evaluates a random sample of eight suburban bicycle and pedestrian facilities funded by the Congestion Mitigation and Air Quality Program in the Chicago metro area. Users of these facilities were randomly sampled using a “time-based” user sampling approach and surveyed in intercept mode to implement a recall-based evaluation design. A random intercept logit model was used to explain variations in the propensity to switch from single occupant vehicle use to bicycling or walking, using attributes of users and sites. The analysis shows relatively low usage levels but that substitution of motorized modes have resulted, potentially leading to improved air quality outcomes.

► We present a study of non-motorized facilities funded by the US Congestion Mitigation and Air Quality Program.
► We consider a random sample of eight CMAQ-funded suburban bicycle and pedestrian facilities in the Chicago metro area.
► The facilities showed relatively low usage levels but users were found to have switched from motorized modes.
► Personal and trip and facility-related factors explain the propensity to switch from SOV use to use of these facilities.