Estimating day use social carrying capacity in Yosemite national park

Abstract. Estimating Day Use Social Carrying Capacity in Yosemite National Park Carrying capacity has been a long-standing issue in management of parks and outdoor recreation. Contemporary carrying capacity frameworks rely on formulation of indicators and standards of quality of the recreation experience to define and manage carrying capacity. This paper describes a program of research to support application of carrying capacity to Yosemite Valley, the scenic heart of Yosemite National Park, USA. Research included (1) a series of visitor surveys at selected sites within Yosemite Valley to identify indicators and standards of quality, (2) development of computer simulation models of visitor use at study sites to estimate maximum daily use levels without violating standards of quality, and (3) a park exit survey to determine the percentage of day users at study sites. Study findings are used to estimate a range of day use carrying capacities at study sites and for Yosemite Valley as a whole.