Horizon Blockage
Definition
Horizon Blockage, in the context of GIS and tourism, refers to the calculation and visualization of the horizon blocking line from a specified observation point. This involves determining which physical obstructions, such as buildings, hills, or trees, might block the view from a particular location. Such analysis is pivotal in understanding and enhancing the visual experience in sightseeing and tourism planning.
What is Horizon Blockage?
Horizon Blockage analysis is a geographic information system (GIS) operation that determines the visibility line from a given observation point in all directions. By using planet-ready GIS platforms, like gvSIG's Horizon Blockage tool, users can input an observation point's coordinates to generate a comprehensive view of potential obstructions within the surrounding horizon. This is crucial for tourism development, as it assists in identifying optimal locations for scenic lookouts, planning tourist routes, and enhancing visitor experiences by ensuring unobstructed view areas are prioritized.
The process begins by creating a digital elevation model (DEM) of the area around the observation point. The tool calculates the line-of-sight from this point across the DEM to pinpoint where obstructions cause breaks in direct sight lines. These breaks indicate horizon blockage, represented visually as lines or shaded areas on a map. This information helps architects, urban planners, and tourism developers make informed decisions regarding infrastructure development, ensuring that significant natural views remain accessible and enjoyable for visitors.
FAQs
How does horizon blockage impact tourism?
Horizon blockage can significantly impact the quality of a tourist site by obstructing views that are considered attractive or unique, thus diminishing the overall visitor experience. Identifying horizon blockage helps in planning infrastructures like viewing platforms and pathways to maximize scenic views.
What tools are necessary for performing a horizon blockage analysis?
A GIS platform capable of processing digital elevation models is essential. Tools offering specific functions for line-of-sight analysis, like gvSIG’s Horizon Blockage, are particularly useful in accurately identifying view obstructions from observation points.
How accurate are horizon blockage predictions?
The accuracy of horizon blockage predictions depends on the resolution and quality of the dataset used, such as the digital elevation model, as well as the precision of the observation point's coordinates. High-resolution data and precise input parameters will yield more reliable results.
Can horizon blockage analysis be used for urban tourism planning?
Yes, horizon blockage analysis can be instrumental in urban tourism planning by ensuring that tourist attractions maintain open views toward iconic landmarks or landscapes, thus enhancing the appeal and satisfaction of visitor experiences.
