Objective and subjective assessment of selected factors of the work environment of forest harvesters and forwarders

https://doi.org/10.17221/120/2014-JFSCitation:Jankovský M., Messingerová V., Ferenčík M., Allman M. (2016): Objective and subjective assessment of selected factors of the work environment of forest harvesters and forwarders. J. For. Sci., 62: 8-16.
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This article was aimed at assessment of selected factors of the work environment, which influenced the operators of harvesters and forwarders. The selection of the work environment factors was based on a thorough literature survey. From the survey exposure to whole-body vibrations, noise (equivalent and peak), microclimatic conditions and mental load were selected for detailed observations. The measurements were conducted according to international standards and assessed according to European or national legislation. Subjective assessment of the effects of the work environment was conducted through a structured interview. The exposure to whole-body vibrations was 0.5 m·s–2. The equivalent noise exposure was 78 dB, peak noise exposure was 130 dB. The average temperature inside the machine cabs was 17.9°C and average airflow velocity was 0.06 m·s–2. Mental load was high according to the Meister questionnaire, three operators considered the load inadequate, two considered it adequate. Subjective assessment showed that operators considered other factors to be light or no load
Alahmer A., Mayyas Ahmed, Mayyas Abed A., Omar M.A., Shan Dongri (2011): Vehicular thermal comfort models; a comprehensive review. Applied Thermal Engineering, 31, 995-1002  https://doi.org/10.1016/j.applthermaleng.2010.12.004
Ala-Mursula L (2004): Effect of employee worktime control on health: a prospective cohort study. Occupational and Environmental Medicine, 61, 254-261  https://doi.org/10.1136/oem.2002.005983
Allen Tammy D., Herst David E. L., Bruck Carly S., Sutton Martha (2000): Consequences associated with work-to-family conflict: A review and agenda for future research.. Journal of Occupational Health Psychology, 5, 278-308  https://doi.org/10.1037/1076-8998.5.2.278
Andreoni Giuseppe, Santambrogio Giorgio C, Rabuffetti Marco, Pedotti Antonio (2002): Method for the analysis of posture and interface pressure of car drivers. Applied Ergonomics, 33, 511-522  https://doi.org/10.1016/S0003-6870(02)00069-8
Axelsson Sven-Åke, Pontén Bengt (1990): New ergonomic problems in mechanized logging operations. International Journal of Industrial Ergonomics, 5, 267-273  https://doi.org/10.1016/0169-8141(90)90062-7
Axelsson S. (1998): The mechanization of logging operations in sweden and its effect on occupational safety and health. International Journal of Forest Engineering, 9: 25–31.
Aybek Ali, Kamer H. Atil, Arslan Selçuk (2010): Personal noise exposures of operators of agricultural tractors. Applied Ergonomics, 41, 274-281  https://doi.org/10.1016/j.apergo.2009.07.006
Beuk D., Tomašić Ž., Horvat D. (2007): Status and development of forest harvesting mechanisation in Croatian state forestry. Croatian Journal of Forest Engineering, 28: 63–82.
Bilski Bartosz (2013): Exposure to audible and infrasonic noise by modern agricultural tractors operators. Applied Ergonomics, 44, 210-214  https://doi.org/10.1016/j.apergo.2012.07.002
Boileau P.-E., Rakheja S. (1990): Vibration attenuation performance of suspension seats for off-road forestry vehicles. International Journal of Industrial Ergonomics, 5, 275-291  https://doi.org/10.1016/0169-8141(90)90063-8
BURDORF ALEX, SWUSTE PAUL (1993): THE EFFECT OF SEAT SUSPENSION ON EXPOSURE TO WHOLE-BODY VIBRATION OF PROFESSIONAL DRIVERS. Annals of Occupational Hygiene, 37, 45-55  https://doi.org/10.1093/annhyg/37.1.45
Cengiz Tülin Gündüz, Babalık Fatih C. (2007): An on-the-road experiment into the thermal comfort of car seats. Applied Ergonomics, 38, 337-347  https://doi.org/10.1016/j.apergo.2006.04.018
Deprez Koen, Moshou Dimitrios, Anthonis Jan, De Baerdemaeker Josse, Ramon Herman (2005): Improvement of vibrational comfort on agricultural vehicles by passive and semi-active cabin suspensions. Computers and Electronics in Agriculture, 49, 431-440  https://doi.org/10.1016/j.compag.2005.08.009
Dupuis H., Zerlett G. (1986). The Effects of Whole-body Vibration. New York, Springer: 162.
Farzaneh Yadollah, Tootoonchi Ali A. (2008): Controlling automobile thermal comfort using optimized fuzzy controller. Applied Thermal Engineering, 28, 1906-1917  https://doi.org/10.1016/j.applthermaleng.2007.12.025
Fernández Marcos D., Quintana Samuel, Chavarría Noelia, Ballesteros José A. (2009): Noise exposure of workers of the construction sector. Applied Acoustics, 70, 753-760  https://doi.org/10.1016/j.apacoust.2008.07.014
Gao Naiping, Niu Jianlei (2004): CFD study on micro-environment around human body and personalized ventilation. Building and Environment, 39, 795-805  https://doi.org/10.1016/j.buildenv.2004.01.026
Gardell Bertil (1982): Scandinavian Research on Stress in Working Life. International Journal of Health Services, 12, 31-41  https://doi.org/10.2190/K3DH-0AXW-7DCP-GPFM
Gellerstedt Sten (1997): Mechanised cleaning of young forest — The strain on the operator. International Journal of Industrial Ergonomics, 20, 137-143  https://doi.org/10.1016/S0169-8141(96)00046-7
Gellerstedt S. (2002): Operation of the single-grip harvester: motor-sensory and cognitive work. International Journal of Forest Engineering, 13: 35–47.
Gellestedt S., Almqvist R., Myhrman D., Wikstrom B.O., Attebrant M., Winkel J. (1999): Ergonomic Guidelines for Forest Machines Handbook. Uppsala, Swedish National Institute for Working Life, Forestry Research Institute of Sweden, Swedish University of Agricultural Sciences: 85.
Gerasimov Y., Sokolov A. (2009): Ergonomic characterization of harvesting work in Karelia. Croatian Journal of Forest Engineering, 30: 159–170.
GRIECO A. (1986): The Ergonomics Society The Society's Lecture 1986 SITTING POSTURE: AN OLD PROBLEM AND A NEW ONE. Ergonomics, 29, 345-362  https://doi.org/10.1080/00140138608968270
Griffin M.J. (2006): Vibration and Motion. In: Handbook of Human Factors and Ergonomics. New York, John Wiley & Sons: 590–609.
Hansson J.-E. (1990): Ergonomic design of large forestry machines. International Journal of Industrial Ergonomics, 5, 255-266  https://doi.org/10.1016/0169-8141(90)90061-6
Hansson Per-Anders (1995): Optimization of agricultural tractor cab suspension using the evolution method. Computers and Electronics in Agriculture, 12, 35-49  https://doi.org/10.1016/0168-1699(94)00036-P
HINZ B., SEIDEL H., MENZEL G., BLÜTHNER R. (2002): EFFECTS RELATED TO RANDOM WHOLE-BODY VIBRATION AND POSTURE ON A SUSPENDED SEATWITH AND WITHOUT BACKREST. Journal of Sound and Vibration, 253, 265-282  https://doi.org/10.1006/jsvi.2001.4259
Hnilica R., Dado M., Šoteková A. (2013): Invenzita hluku verzus psychická záťaž človeka. Acta Facultatis Technicae, 18: 43–52.
Hostens I., Ramon H. (2003): Descriptive analysis of combine cabin vibrations and their effect on the human body. Journal of Sound and Vibration, 266, 453-464  https://doi.org/10.1016/S0022-460X(03)00578-9
Huang K. David, Tzeng Sheng-Chung, Jeng Tzer-Ming, Chiang Wing-Ding (2006): Air-conditioning system of an intelligent vehicle-cabin. Applied Energy, 83, 545-557  https://doi.org/10.1016/j.apenergy.2005.05.006
Hulshof Carel, Veldhuijzen van Zanten Brinio (1987): Whole-body vibration and low-back pain. International Archives of Occupational and Environmental Health, 59, 205-220  https://doi.org/10.1007/BF00377733
Huston D.R., Johnson C.C., Wood M.A., Zhao X. (1999): VIBRATION ATTENUATING CHARACTERISTICS OF AIR FILLED SEAT CUSHIONS. Journal of Sound and Vibration, 222, 333-340  https://doi.org/10.1006/jsvi.1998.2016
JC CHEN, WR CHANG, TS SHIH, CJ CHEN, WP CHANG, JT DENNERLEIN, LM RYAN, DC CHRISTIANI (2003): Predictors of whole-body vibration levels among urban taxi drivers. Ergonomics, 46, 1075-1090  https://doi.org/10.1080/0014013031000109205
Jansen Nicole WH, Kant Ijmert, Nijhuis Frans JN, Swaen Gerard MH, Kristensen Tage S (2004): Impact of worktime arrangements on work-home interference among Dutch employees. Scandinavian Journal of Work, Environment & Health, 30, 139-148  https://doi.org/10.5271/sjweh.771
Kaynakli Omer, Kilic Muhsin (2005): Investigation of indoor thermal comfort under transient conditions. Building and Environment, 40, 165-174  https://doi.org/10.1016/j.buildenv.2004.05.010
Kim Sung Chul, Won Jong Phil, Kim Min Soo (2009): Effects of operating parameters on the performance of a CO2 air conditioning system for vehicles. Applied Thermal Engineering, 29, 2408-2416  https://doi.org/10.1016/j.applthermaleng.2008.12.017
Kolich Mike, Essenmacher Steven D., McEvoy James T. (2005): Automotive seating: the effect of foam physical properties on occupied vertical vibration transmissibility. Journal of Sound and Vibration, 281, 409-416  https://doi.org/10.1016/j.jsv.2004.03.058
Lewark S. (2005): Scientific Reviews of Ergonomic Situation Mechanized Forest Operations. Uppsala, Sveriges Lantbruksuniversitet: 185
Li Lu, Lamis Farhana, Wilson Sara E. (2008): Whole-body vibration alters proprioception in the trunk. International Journal of Industrial Ergonomics, 38, 792-800  https://doi.org/10.1016/j.ergon.2007.10.010
Magnusson Marianne, Pope M, Rostedt M, Hansson T (1993): Effect of backrest inclination on the transmission of vertical vibrations through the lumbar spine. Clinical Biomechanics, 8, 5-12  https://doi.org/10.1016/S0268-0033(05)80003-8
Marsili A., Ragni L., Vassalini G. (1998): Vibration and Noise of a Tracked Forestry Vehicle. Journal of Agricultural Engineering Research, 70, 295-306  https://doi.org/10.1006/jaer.1998.0296
Meister W. (1975): Verfahren zur vergleichender Eunschätzun psychologish beanspruchender Tätigkeiten. In: Kongressband 4.
Berlin, Gesellschaft für Psychologie: 12
Melnick W. (1991): Hearing Loss from Noise Exposure. In: Handbook of Acoustical Measurements and Noise Control. New York, McGraw-Hill: 18.1–18.19.
Messingerová V., Martinusová L., Slančík M. (2005): Ergonomic parameters of the work of integrated technologies at timber harvesting. Croatian Journal of Forest Engineering, 26: 79–84.
Mezrhab A., Bouzidi M. (2006): Computation of thermal comfort inside a passenger car compartment. Applied Thermal Engineering, 26, 1697-1704  https://doi.org/10.1016/j.applthermaleng.2005.11.008
Mohammadi Ghorbanali (2008): Hearing conservation programs in selected metal fabrication industries. Applied Acoustics, 69, 287-292  https://doi.org/10.1016/j.apacoust.2006.12.002
Nieuwenhuis M., Lyons M. (2002): Health and safety issues and perceptions of forest harvesting contractors in Ireland. International Journal of Forest Engineering, 13: 69–76.
Olesen Bjarne W. (1995): International standards and the ergonomics of the thermal environment. Applied Ergonomics, 26, 293-302  https://doi.org/10.1016/0003-6870(95)00033-9
Ovaskainen Heikki (2009): Timber harvester operators’ working technique in first thinning and the importance of cognitive abilities on work productivity. Dissertationes Forestales, , -  https://doi.org/10.14214/df.79
PADDAN G.S., GRIFFIN M.J. (2002): EFFECT OF SEATING ON EXPOSURES TO WHOLE-BODY VIBRATION IN VEHICLES. Journal of Sound and Vibration, 253, 215-241  https://doi.org/10.1006/jsvi.2001.4257
Parsons K.C. (1995): Ergonomics of the physical environment. Applied Ergonomics, 26, 281-292  https://doi.org/10.1016/0003-6870(95)00041-A
Poschen P. (1993): Forestry, a safe and healthy profession? Available at http://www.fao.org/docrep/u8520e/u8520e03.htm
Rottensteiner Christian, Tsioras Petros, Neumayer Heinz, Stampfer Karl (2013): Vibration and noise assessment of tractor-trailer and truck-mounted chippers. Silva Fennica, 47, -  https://doi.org/10.14214/sf.984
Sherwin L.M., Owende P.M.O., Kanali C.L., Lyons J., Ward S.M. (2004a): Influence of forest machine function on operator exposure to whole-body vibration in a cut-to-length timber harvester. Ergonomics, 47: 1145–1159.
Sherwin L.M., Owende P.M.O., Kanali C.L., Lyons J., Ward S.M. (2004b): Influence of tyre inflation pressure on whole-body vibrations transmitted to the operator in a cut-to-length timber harvester. Applied Ergonomics, 35: 253–61.
Schwartz M., Dado M., Hnilica R. (2013): Rizikové faktory pracovného prostredia. Zvolen, Technická univerzita vo Zvolene: 439.
Sümer Sarp Korkut, Say Sait M., Ege Fikri, Sabanci Alaettin (2006): Noise exposed of the operators of combine harvesters with and without a cab. Applied Ergonomics, 37, 749-756  https://doi.org/10.1016/j.apergo.2005.11.006
Tiemessen Ivo J., Hulshof Carel T.J., Frings-Dresen Monique H.W. (2007): An overview of strategies to reduce whole-body vibration exposure on drivers: A systematic review. International Journal of Industrial Ergonomics, 37, 245-256  https://doi.org/10.1016/j.ergon.2006.10.021
Tsioras P.A. (2012): Promotion of Safety in Forest Operations. Zilina, EDIS: 1395–1399.
Yamada Yozo (1998): Two effective methods for the evaluating mental work load on machine-operators — Fractal dimensional analysis with the CGSA method —. Journal of Forest Research, 3, 151-154  https://doi.org/10.1007/BF02762136
Zhang H., Dai L., Xu G., Li Y., Chen W., Tao W.Q. (2009a): Studies of air-flow and temperature fields inside a passenger compartment for improving thermal comfort and saving energy. Part II: Simulation results and discussion. Applied Thermal Engineering, 29: 2028–2036.
Zhang H., Dai L., Xu G., Li Y., Chen W., Tao W.Q. (2009b): Studies of air-flow and temperature fields inside a passenger compartment for improving thermal comfort and saving energy. Part I: Test/numerical model and validation. Applied Thermal Engineering, 29: 2022–2027.
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