Conventions, emerging norms, and norms are different ways that social
life becomes ordered and regularized, and they make the social worlds
of outdoor recreation knowable and predictable. These concepts represe
nt a continuum of social regularities that is illustrated through the
development of an evaluative model based generally on Jackson's (1996)
return potential model. Social conventions are open behaviors based o
n common expectations and preferences, and social norms are behaviors
bounded by obligations that are enforced through sanctions. When conve
ntions become so important that more and more people see them as oblig
ations, a social norm may be said to be emerging. Data are presented f
rom a study of multiple-use bike trail users who responded to both nor
mative and non-normative preference statements about bike trail behavi
ors. The normative preferences were contained in a 1993 questionnaire,
and the non-normative preferences concerning the same behaviors were
contained in a 1994 questionnaire. For some of the behaviors, differen
ces were found in normative and non-normative responses. To clarify wh
ether preferences are more normative or more non-normative, a question
naire format is suggested in which bath normative and nan-normative pr
eferences are included.