|   | 
Author English, D.B.K.; Zarnoch, S.J.; Kocis, S.M.,
Title Designing a Sampling System for Concurrently Measuring Outdoor Recreation Visitation and Describing Visitor Characteristics Type
Year 2004 Publication (up) Policies, Methods and Tools for Visitor Management Abbreviated Journal
Volume MMV 2 - Proceedings Issue Pages 28-33
Keywords MMV2, National Visitor Use Monitoring, onsite sampling, sampling plan, use estimation, visitor characteristics, sample allocation
Abstract Two primary information needs for managing recreation areas and the visitors to those areas are: (1) good estimates of visitation volume, and (2) accurate descriptions of visitor characteristics, such as length of stay, frequency of visit, and primary activity. For National Forests in the United States of America with large undeveloped areas, efficient sampling for the two types of information may be to a large extent incompatible. Sampling plans that address visitation volume issues allocate most of the sample days to the largest and most internally variable strata. Sampling plans for studies of visitor characteristics allocate sampling effort to locations that most efficiently provide visitor information, such as at developed sites. Additionally, sampling plans for studies of visitor characteristics may need to ensure spatial or temporal dispersion of the sample, in order to ensure adequate representation of different visitor sub-groups. A method is demonstrated for allocating days into sampling strata which balances the contribution of sample days in improving the accuracy of the total visitation estimate with the contribution of the sample day to maximizing the quantity and dispersion of visitor information. The resulting sampling allocation provides an optimal solution to address both of the information needs through a single data collection effort. A second phase of the method addresses how to ensure spatial and temporal dispersion of sampling effort. Examples of applications on National Forests in the United States are provided.
Call Number ILEN @ m.sokopp @ 378 Serial 2397
Permanent link to this record

Author Zarnoch, S.J.; English, D.B.K.; Kocis, S.M.,
Title A Model for Evaluating Dispersed Outdoor Recreation Use Estimation Type
Year 2004 Publication (up) Policies, Methods and Tools for Visitor Management Abbreviated Journal
Volume MMV 2 - Proceedings Issue Pages 100-105
Keywords MMV2
Abstract An outdoor recreation use simulator (ORUS) has been developed to simulate dispersed recreation survey data similar to that collected by the National Visitor Use Monitoring (NVUM) Project’s survey of the national forests of the U.S.A. Statistical distributions are used to represent the various behaviors of recreationists during their visit to a dispersed area. The beta distribution is used to model arriving times and last exiting times. The number of intermediate exits from a site is determined by the Poisson distribution while their times are selected randomly according to the uniform distribution. Finally, three trap shy behaviors are assigned to the recreationists to quantify their probability of capture by the interviewer. The arriving and last exiting beta distributions are fitted to the NVUM data. The functioning of the simulator is demonstrated with a simple example with explanations of each recreationist’s actions with respect to the sampling methodology. The utility of ORUS in evaluating the bias and coefficient of variability of various estimating scenarios is also presented.
Call Number ILEN @ m.sokopp @ 364 Serial 2390
Permanent link to this record