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Open AccessArticle

Assessing Safety and Suitability of Old Trails for Hiking Using Ground and Drone Surveys

1
State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
2
College of Forestry and Landscape Architecture, South China Agriculture University, Guangzhou 510642, China
3
Shenzhen Dapeng Peninsula National Geopark, Shenzhen 518121, China
4
Pubang Landscape Architecture Co. Ltd., Guangzhou 510600, China
*
Authors to whom correspondence should be addressed.
These authors contributed equally.
ISPRS Int. J. Geo-Inf. 2020, 9(4), 221; https://doi.org/10.3390/ijgi9040221
Received: 3 March 2020 / Revised: 30 March 2020 / Accepted: 2 April 2020 / Published: 7 April 2020
(This article belongs to the Special Issue Smart Tourism: A GIS-Based Approach)
Hiking is a popular recreational activity and to cater to public demand, it is apt to increase the number of hiking trails. Various methodologies have been proposed to evaluate the suitability of forest trails to be constructed as hiking trails, but they can be costly and require relevant knowledge in analyzing digital information through a high-throughput dataset. Therefore, there is a need to come up with a simple method to obtain first-hand information on the trail condition, particularly considering the aspects of safety and suitability to hikers, using both on-ground and aerial observations. In this study, we introduce a new assessment approach to analyze and select old forest trails to be reconstructed as new hiking trails. This is useful for park managers who prioritize safety, comfort, and aesthetic features of the recreation site for their visitors. Trail condition assessment was carried out along the trail whereby a 2×2 m sampling plot was constructed at every 100 m. Aerial drone survey was conducted to produce an ortho-mosaic that revealed the percentage of exposed trail from above. Potential phytotourism products and scenic spots were identified and recorded for their locations along the trail to promote the aesthetic value of the recreation site. A strength distribution plot was prepared based on the trail condition, canopy coverage, and aesthetic features along the trail that were categorized using three altitude ranges (n ≤ 150 m, 150 < n < 250 m, n ≥ 250 m a.s.l.). This is to assess the trade-offs in safety, comfort, and aesthetic features along the trail. The development of this methodology offers a direct and cost-effective, yet informative approach to evaluate the quality of a potential hiking trail, thus could effectively aid in the promotion of nature-based tourism. View Full-Text
Keywords: nature-based tourism; phytotourism; recreational trail; score classification system; trail degradation; unmanned aerial vehicle nature-based tourism; phytotourism; recreational trail; score classification system; trail degradation; unmanned aerial vehicle
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Lee, S.Y.; Du, C.; Chen, Z.; Wu, H.; Guan, K.; Liu, Y.; Cui, Y.; Li, W.; Fan, Q.; Liao, W. Assessing Safety and Suitability of Old Trails for Hiking Using Ground and Drone Surveys. ISPRS Int. J. Geo-Inf. 2020, 9, 221.

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