Graph analysis of road network for forest harvesting in Mazandaran province

Forest road network is the backbone of timber transportation and many other services. In this paper, we, first, analyzed the existing forest road networks based on graph theory, and, then, developed network connectivity considering timber transportation services. Root nodes, articulation nodes, links and sub-graphs were considered as graph components, while network density, road spacing, alpha index (𝛼), beta index (𝛽), P index (𝜋), eta index (η), number of cycles (u), gamma index (ɣ) and detour index (DI) were considered as topologic and geometric measures. New segments based on topologic standards were proposed to improve the efficiency of road networks with weak connectivity. The proposed approach was applied to ۱۲ test networks in the central highland of the Hyrcanian forests, north of Iran. Results showed that the mean of the articulation nodes, total nodes, links, sub-graphs, α, β, π, η, u and ɣ in the forest land

کلیدواژه ها:

Forest road network ، Graph analysis ، Timber transportation ، Network connectivity ، Topologic measures ، Geometric measures ، Hyrcanian forests