FORMATH
Online ISSN : 2188-5729
ISSN-L : 2188-5729
Original Article
Planning Circular Forest Road Networks Based on Water Catchment Areas
M. SaitoK. ItoK. ArugaY. ShuinT. Tasaka
Author information
JOURNAL FREE ACCESS

2013 Volume 12 Pages 149-171

Details
Abstract

A planning program for circular forest road networks, including strip roads, was developed by considering water catchment areas. The forest road network planned by the program and the existing forest road network constructed by the forest owner were compared and examined using indices representing operational and traffic benefits. From the viewpoint of operational benefits, the average winching distance and ratio of average winching distance to the theoretical average winching distance for the road network based on water catchment areas were lower than those for road networks based on subcompartments. From the viewpoint of traffic benets, the average distance between the attainment points of the road network based on water catchment areas was shorter. In addition, a connectivity reliability analysis was conducted to evaluate the alternative function, which is considered an index of traffic benefits, by using a shallow landslide risk map. Road failure was assumed to occur when a forest road passed over a shallow landslide risk area. The connectivity reliability of the road network based on water catchment areas was the highest because of its ladder-shaped structure. The economic benefit per unit road length of the road network based on water catchment areas was also larger. Therefore, the road network based on water catchment areas was the most suitable for the applied forest road network, assuming that the network was completely established.

Content from these authors
© 2013 The Author(s) CC-BY 4.0

This article is licensed under a Creative Commons [Attribution 4.0 International] license.
https://creativecommons.org/licenses/by/4.0/
Previous article Next article
feedback
Top