SIMYAR: a cable-yarding simulation model.

R.J. McGaughey; R.H. Twito

doi:10.2737/PNW-GTR-205

Treesearch

SIMYAR: a cable-yarding simulation model.

Informally Refereed

Authors:

R.J. McGaughey, R.H. Twito

Year:

1987

Type:

General Technical Report

Station:

Pacific Northwest Research Station

DOI:

https://doi.org/10.2737/PNW-GTR-205

Source:

Gen. Tech. Rep. PNW-GTR-205. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 28 p

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Download (PDF 2.11 MB): https://research.fs.usda.gov/download/treesearch/8722.pdf

Abstract

A skyline-logging simulation model designed to help planners evaluate potential yarding options and alternative harvest plans is presented. The model, called SIMYAR, uses information about the timber stand, yarding equipment, and unit geometry to estimate yarding co stand productivity for a particular operation. The costs of felling, bucking, loading, and hauling are not considered. Included are a description of the input requirements for SIMYAR, descriptions of the major algorithms, suggested applications, and a discussion of limitations. A users guide is available as an appendix to this publication.

Keywords

Simulation, cable logging, yarding operations, timber harvesting, costs (logging)

Citation

McGaughey, R.J.; Twito, R.H. 1987. SIMYAR: a cable-yarding simulation model. Gen. Tech. Rep. PNW-GTR-205. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 28 p