What Studies Are Taking Place on the Half Dome Trails?
In 2008, studies on the Half Dome Cables Trail combined computer-based simulation modeling and survey research to understand impacts to the natural environment and social conditions on the trail and help define a baseline for current visitor experience conditions. These studies occurred in July and August 2008 with the Half Dome Cables Modeling and Visitor Use Estimation Final Report: Yosemite National Park completed in April 2009 [6.3 MB PDF]. The primary objective of the computer modeling has been to understand the connection between the number of people using the trail and the amount of time spent on the cables. Delay times were collected on the trail as well as time spent at the summit. With these data, the computer model is able to predict crowding based on people per viewscape and people at one time on the trail. This information provides important baseline data for projections of use of the cables based on the amount of people arriving at the Happy Isles Trailhead. Yosemite Nati
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