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Human factors in mechanized cut-to-length forest operations

Häggström, Carola (2015). Human factors in mechanized cut-to-length forest operations. Diss. (sammanfattning/summary) Umeå : Sveriges lantbruksuniv., Acta Universitatis Agriculturae Sueciae, 1652-6880 ; 2015:59
ISBN 978-91-576-8316-8
eISBN 978-91-576-8317-5
[Doctoral thesis]

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Although forest operations research has a more than 50-year-long tradition in the field of human factors, there is a current decline in resources put on continuous and systematic human factors research. Therefore, the overall aim of this thesis was to contribute new knowledge on working conditions in mechanized cut-to-length logging operations and their relationship to system performance. Findings from four different studies, each using different research methods and approaches, were compiled and discussed based on their relevance to operator working conditions and logging system performance in a Nordic context and with a broader international outlook.

A human, technology and organization (HTO) framework was used in Study I to scrutinize the problems that exist in the interactions between these three aspects. The body of knowledge on the H, T and O aspects was extended in Studies II, III and IV based on problem identification Study I.

In study II, it was emphasized that most Swedish logging contractors were relatively small enterprises working purely with machine operations. Consequently, with the exception of between harvester and forwarder, task rotation has limited potential to be implemented within most companies.

In Study III, forwarder crane work was essentially ruled out as a major source of harmful levels of whole body vibration (WBV). The results also indicated that the choice of grapple may prove important with respect to avoiding costly growth losses for the landowner and environmental concerns.

In Study IV, gaze behaviour was investigated in an observational field study. By comparing operators in first thinning, second thinning and final felling, a task-dependent information search pattern was identified. Specifically, the information on the bucking monitor and the tree being felled was less frequently attended to, i.e. less interesting, during first thinning than during the other operation types.

Taken as a whole, much of the forestry literature focuses on individual aspects of the work environment, as in studies II-IV, and a systems perspective is less frequently applied. A hindrance to applying a systems perspective is that it demands transdisciplinary research teams and interdisciplinary research. However, this should be seen as an opportunity and not a hindrance to successful future research.

Authors/Creators:Häggström, Carola
Title:Human factors in mechanized cut-to-length forest operations
Series Name/Journal:Acta Universitatis Agriculturae Sueciae
Year of publishing :2015
Depositing date:11 May 2015
Number of Pages:77
ICarola Häggström & Ola Lindroos. Human, technology, organization and environment – A systems perspective on human factors in forest harvesting. (Manuscript).
IICarola Häggström, Akie Kawasaki & Gun Lidestav (2013). Profiles of forestry contractors and development of the forestry-contracting sector in Sweden. Scandinavian Journal of Forest Research 28(4), 395-404.
IIICarola Häggström, Mikael Öhman, Lage Burström, Tomas Nordfjell & Ola Lindroos (In press). Vibration exposure in forwarder work: effects of work element and grapple type. Croatian Journal of Forest Engineering.
IVCarola Häggström, Martin Englund Ola Lindroos (accepted with minor revision). Examining the gaze behaviors of harvester operators: an eye-tracking study. International Journal of Forest Engineering.
Place of Publication:Umeå
Publisher:Department of Forest Biomaterials and Technology, Swedish University of Agricultural Sciences
ISBN for printed version:978-91-576-8316-8
ISBN for electronic version:978-91-576-8317-5
Publication Type:Doctoral thesis
Full Text Status:Public
Agris subject categories.:E Economics, development, and rural sociology > E50 Rural sociology and social security
K Forestry > K10 Forestry production
T Pollution > T10 Occupational diseases and hazards
Subjects:(A) Swedish standard research categories 2011 > 2 Engineering and Technology > 211 Other Engineering and Technologies > Interaction Technologies
(A) Swedish standard research categories 2011 > 3 Medical and Health Sciences > 303 Health Sciences > Environmental Health and Occupational Health
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Forest Science
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 405 Other Agricultural Sciences > Agricultural Occupational Health and Safety
Agrovoc terms:forestry operations, shortwood logging, private enterprises, forest workers, ergonomics, working conditions, vibration, mechanization, harvesters, human behaviour, work study
Keywords:contractors, cut-to-length, ergonomics, eye tracking, forwarder, harvester, logging, mechanized forestry, MTO, whole body vibration
Permanent URL:
ID Code:12208
Faculty:S - Faculty of Forest Sciences
Department:(S) > Department of Forest Biomaterials and Technology (from 131204)
External funders:SLO fonden (inom Kungliga Skog och lantbruksakademin)
Deposited By: Carola Häggström
Deposited On:12 May 2015 09:35
Metadata Last Modified:10 Sep 2020 13:41

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