The rapid increase of the leaving bicycle around the stations has become a social problem. Not only local government' countermeasures but also the understandings and cooperatives of general public are necessary to solve the bicycle problems. Author developed an incentive questionnaire by presenting information on bicycle problem and conducted a social survey with it. This paper discussed the effects of its enlightenment. As a result, there were clear effects on a lot of the questions. Then it acted especially on some subject groups; for example, the subjects whose age were 30's and 40's.
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