DENA Park Road- Viewshed Analysis

A viewshed raster increases the value of the raster cell by one if the location is visible from an observation point. This viewshed raster was created by sampling each cell from 5173 vertices along the park road. The result is a raster with a range of values with the highest values occurring at cells that are visible from the most locations. This provides a quantifiable measure of the most visible landscape features.The viewshed tool used to create this raster combines average height of vegetation cover and digital elevation models (DEM) to create a raster for use in visibility analysis. It assumes no vegetation 8 meters from the center of the Park Road, accounting for the roadbed and low vegetation resulting from park brushing operations. The extent of the analysis was limited to within the park boundaries and therefore does not include areas to the east of the park that may be visible when traveling east along the park road. These results are using 60 m resolution DEMs and did not take into account lack of vegetation along the roadbed and in the road corridor.