This is personal opinion (not scientific), but I don’t feel safe bicycling the streets of Boston. There are too many distracted, drugged-out drivers on the roads. Therefore, I am only willing to cycle on protected bike paths. Personal opinion regarding “danger” is based on emotion and experience, not science. I frequently walk the streets of Boston, although there is a risk of being shot, run over, etc. For another viewpoint, check out the work of Gabriel Popkin and Colin Harris.
I believe the most important issue is how to make biking and walking safer in cities. Protected bike paths are needed throughout cities. Motor vehicle traffic should be reduced in city centers, not only because of the risk of accidents, but also to reduce traffic-related air pollution exposure.
What do you think? Please consider leaving a comment below.