Here is a fascinating study about the needs and wants of bicyclists across the country.
Overwhelmingly, bicyclists felt threatened while bicycling primarily due to motorists (88%). More than one-third of bicyclists (37%) also reported feeling threatened for their personal safety because of uneven walkways or roadways. One in 4 (24%) felt threatened by dogs or other animals, while 17 percent felt threatened by the potential for crime. Rural bicyclists were more likely to feel threatened by dogs or other animals (33%) than were other cyclists.