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https://doi.org/https://doi.org/10.5552/crojfe.2021.851

Evaluating the Effects of Improving Forest Road Standards on Economic Value of Forest Products

Abdullah E. Akay   ORCID icon orcid.org/0000-0001-6558-9029 ; Bursa Technical University Faculty of Forestry 16310 Bursa TURKEY
Hasan Serin ; Kahramanmaraş Sütçü İmam University Faculty of Forestry 46100 Kahramanmaraş TURKEY
John Sessions ; Oregon State University College of Forestry FERM Department Corvallis, 97331 Oregon USA
Ebru Bilici ; Giresun University Dereli Vocational School Forestry Department 28950 Giresun TURKEY
Mehmet Pak ; Kahramanmaraş Sütçü İmam University Faculty of Forestry 46100 Kahramanmaraş TURKEY

Puni tekst: engleski, pdf (2 MB) str. 245-258 preuzimanja: 0* citiraj
APA 6th Edition
Akay, A.E., Serin, H., Sessions, J., Bilici, E. i Pak, M. (2021). Evaluating the Effects of Improving Forest Road Standards on Economic Value of Forest Products. Croatian Journal of Forest Engineering, 42 (2), 245-258. Preuzeto s https://hrcak.srce.hr/255262
MLA 8th Edition
Akay, Abdullah E., et al. "Evaluating the Effects of Improving Forest Road Standards on Economic Value of Forest Products." Croatian Journal of Forest Engineering, vol. 42, br. 2, 2021, str. 245-258. https://hrcak.srce.hr/255262. Citirano 11.04.2021.
Chicago 17th Edition
Akay, Abdullah E., Hasan Serin, John Sessions, Ebru Bilici i Mehmet Pak. "Evaluating the Effects of Improving Forest Road Standards on Economic Value of Forest Products." Croatian Journal of Forest Engineering 42, br. 2 (2021): 245-258. https://hrcak.srce.hr/255262
Harvard
Akay, A.E., et al. (2021). 'Evaluating the Effects of Improving Forest Road Standards on Economic Value of Forest Products', Croatian Journal of Forest Engineering, 42(2), str. 245-258. Preuzeto s: https://hrcak.srce.hr/255262 (Datum pristupa: 11.04.2021.)
Vancouver
Akay AE, Serin H, Sessions J, Bilici E, Pak M. Evaluating the Effects of Improving Forest Road Standards on Economic Value of Forest Products. Croatian Journal of Forest Engineering [Internet]. 2021 [pristupljeno 11.04.2021.];42(2):245-258. Dostupno na: https://hrcak.srce.hr/255262
IEEE
A.E. Akay, H. Serin, J. Sessions, E. Bilici i M. Pak, "Evaluating the Effects of Improving Forest Road Standards on Economic Value of Forest Products", Croatian Journal of Forest Engineering, vol.42, br. 2, str. 245-258, 2021. [Online]. Dostupno na: https://hrcak.srce.hr/255262. [Citirano: 11.04.2021.]

Sažetak
Forest roads are the key infrastructures that provide access to forest areas for sustainable management, protection, and utilization of forest resources. In order to benefit from the important functions of forest roads, they should be built in with adequate technical road standards. The road network with low technical standards require more frequent major repairs to ensure continues access to forest resources. In addition, only small trucks with low load capacity can move on the low standard roads. Furthermore, the low road standards limit the truck speed that increases vehicle travel time. These negative effects increase the transportation costs which are an important part of the timber production costs in Turkey. Thus, improving the road standards and developing forest transportation planning should be evaluated together in the most appropriate way. Large logging trucks with high load capacity are generally preferred for efficient transportation of wood-based forest products. In Turkey, large logging trucks, however, cannot operate on the most of the forest roads because insufficient technical road standards (road width, curve radius, surface materials, road structures) limit the maneuverability of large logging trucks. In this study, the objective is to determine the effects of improving forest road standards on total net profit of forest products by using the NETWORK 2000 program, a heuristic approach for solving forest transportation problems. Three Forest Enterprise Chiefs (FECs) located in Mustafakemalpaşa Forest Enterprise Directorate (FED) in Bursa Forest Regional Directorate were selected as the study area. The digital data layers for forest road network was generated by using ArcGIS 10.4 software. In the solution process, firstly, the optimum routes that minimize the transportation cost and maximize the total net profit of forest products on existing forest road networks were investigated for a truck type (15 ton) currently used in the region. In the second case, forest transportation was planned for the high load capacity truck (29 ton) moving on the forest roads with improved standards. In the first case, the transportation costs and annual major repair costs were considered in the calculation of the net profit of forest products, while one time cost of road improvement activities (i.e. road improvement construction, road structure installation, road surface construction) and annual maintenance costs were considered along with transportation costs in the second case. In both cases, the costs of other forest operations (i.e. felling, logging, etc.) were not considered since it was assumed that they do not vary with the forest transportation alternatives. As a result of the transportation plan developed for high load capacity truck, the annual transportation cost decreased by 46.85% comparing to the local logging trucks with low load capacity. Using improved road standards, the total road costs computed for the time period of 30 years (i.e. the average expected life cycle of forest roads) were reduced by 4.64%. The total net profit of forest products transported by using a high load capacity truck was 473 340 Euro more than that of using low load capacity truck on the existing forest road network. Thus, improving road standards might result in some additional costs in the road construction stage, but total net profit of forest products increase since transportation costs along with maintenance and repair costs considerably decrease in the long term.

Ključne riječi
forest roads, forest products, timber hauling, NETWORK 2000

Hrčak ID: 255262

URI
https://hrcak.srce.hr/255262

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