Limits of Acceptable Change
Limits of acceptable change was the first of the post carrying capacity visitor management frameworks developed to respond to the practical and conceptual failures of carrying capacity. The framework was developed by The U.S. forest service in the 1980s. It is based on the idea that rather than there being a threshold of visitor numbers, in fact any tourist activity is having an impact and therefore management should be based on constant monitoring of the site as well as the objectives established for it. It is possible that with in the Limit of acceptable change framework a visitor limit can be established but such limits are only one tool available. The framework is frequently summarised in to a nine step process.
1. Identify area concerns and issues. 2. Define and describe opportunity classes (based on the concept of ROS). 3. Select indicators of resource and social conditions. 4. Inventory existing resource and social conditions. 5. Specify standards for resource and social indicators for each opportunity class. 6. Identify alternative opportunity class allocations. 7. Identify management actions for each alternative. 8. Evaluate and select preferred alternatives. 9. Implement actions and monitor conditions.
The reader should note however, that there is a difference of LAC as a concept and LAC as a planning framework.
Read more about this topic: Tourism Carrying Capacity
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—Kyle D. Pruett (20th century)
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—Leontine Young (20th century)