Improving drainage conditions of forest roads using the GIS and forest road simulator

Mehran Nasiri and Behnaz Askari
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Behnaz Askari: Department of Forest Engineering, Faculty of Natural Resources, Sari Agricultural Sciences and Natural Resources University (SANRU), Sari, Islamic Republic of Iran

Journal of Forest Science, 2020, vol. 66, issue 9, 361-367

Abstract: In this study a new method of locating culverts is presented with the composition of achieved discharge from hydrological analysis and simulated forest roads in RoadEng 3D simulator to improve drainage condition. Locating culverts was performed on a small scale (1:20 000, using GIS) and large scale (1:2 000, road geometric design simulator). The small-scale study regarding the achieved discharge from streams shows that the installation of some culverts is not necessary. The large-scale study also showed that the geometric design of forest road has a significant effect on locating culverts and its accuracy. To improve drainage conditions 6 culverts and 2 waterfronts taking into account the geometric design of forest road, hydrological conditions and appropriate intervals (155 m) have been proposed. No installation or lack of accuracy to find the best location of culverts may result in the occurrence of creep and landslide, so the cost of destruction would be several times higher than the cost of technical buildings construction.

Keywords: hydrological analysis; locating culverts; waterfront; large and small scale (search for similar items in EconPapers)
Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnljfs:v:66:y:2020:i:9:id:16-2020-jfs

DOI: 10.17221/16/2020-JFS

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