Thomas Wuerzer

Predictors of cycling in college students

Abstract Objectives: To (1) assess cycling-related questions that have been added to the electronic version of the American College Health Association National College Health Assessment II (ACHA-NCHA), (2) examine cycling prevalence, and (3) identify predictors of cycling in college students. Participants: Predominately female (69%), undergraduate (89%), and white (85%) students (N = 949) from a large, urban, northwestern, bicycle-friendly university completed the electronic version of the ACHA-NCHA II. Methods: Thirty cycling-related questions were added to the ACHA-NCHA II and a subsample of questions was analyzed. Results: Cycling questions added to the ACHA-NCHA II scale were reliable and valid, based on the psychometric data analysis. More than half (59%) of this sample cycled; of those, 58% cycled for transportation and 44% for recreation. Facilitators and barriers to cycling were different for cycling in general and cycling for transportation. Conclusions: Cycling questions added to the ACHA-NCHA II can be utilized to enhance knowledge relative to cycling on college campuses.

Retail gravitation and economic impact: A market-driven analytical framework for bike-share station location analysis in the United States

ABSTRACT Bike-share programs are becoming a more frequent and popular amenity for cities around the world. Current analytical models for optimizing the placement and location of bike-share stations seem underdeveloped and potentially subject to false calibration errors. This research builds on retail gravitation models and their derivates to develop a duplicable model for bike-share location in cities in the United States. The findings suggest retail gravitation theory is helpful to bike-share station location analysis. Additionally, the findings set a framework for other cities to use as well as identify future research.