The Association of Pedestrian and Bicycle Professionals (APBP) conducted a survey in spring of 2010 as part of their Women Cycling Project. From the APBP:
The Association of Pedestrian and Bicycle Professionals (APBP) is a non-profit organization committed to increasing bicycling and walking as modes of transportation in the United States. In the spring of 2010, APBP conducted an online questionnaire via Survey Monkey to investigate the factors that would induce women to bicycle more for transportation. The survey was advertised through various bicycling sites online, and included 37 questions pertaining to demographics, cycling behavior, safety/infrastructure concerns, and open-ended inquiries. The survey received a very strong response, with over 13,000 participants. When the survey closed in May, APBP partnered with the Department of Health Education at the University of North Carolina-Greensboro Department to analyze the results.
View the Survey Results [PDF] →