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Effects of Weather Factors on the Work Loss Days of the Elderly Workers

기상요소가 장년근로자의 근로손실일수에 미치는 영향

  • Choi, Jaewook (Department of Architectural Engineering, Graduate School, Incheon National University) ;
  • Kim, Taewan (College of Urban Architecture Engineering, Incheon National University) ;
  • Lee, Chansik (Colleage of Urban Architecture Engineering, Incheon National University)
  • Received : 2018.08.30
  • Accepted : 2018.09.20
  • Published : 2019.01.31

Abstract

With the aging of the population and the slowdown of the job market, elderly workers make up a large portion of the construction workforce. Also, due to the nature of the construction industry, where outdoor work is frequent, the weather has a more sensitive impact on elderly workers than on younger ones. The study aims to analyze the degree of weather risks exposed to elderly workers in the construction industry using the measure of work loss days. To that end, construction accidents that affected 28,514 elderly workers in seven cities from 2012 to 2016 (a total of 12,789 days) were analyzed to calculate work loss days per different weather factors. The results show that the elderly workers were seriously affected when the temperature was between $-12^{\circ}C$ and $-10^{\circ}C$, humidity between 55% and 60%, precipitation between 128mm and 181mm, and wind speed between 5.5m/s and 6.5m/s, with the highest work loss days. The combined effects between the weather factors were also analyzed to identify the conditiosn that leaded to high work loss days of elderly workers. This study contributes to effective safety management and pleasant working environment between weather factors and shedding light on the relationship between weather factors and work loss days of elderly workers.

인구의 고령화와 고용시장의 둔화로 인하여 건설업의 인력구조는 장년근로자가 큰 비중을 차지한다. 또한 옥외작업이 많은 건설업의 특성상 기상은 근로자들에게 재해를 유발하는 요인으로 장년층에게는 일반인에 비하여 보다 민감하게 영향을 미친다. 이 연구는 기상요소가 건설업 장년근로자들에게 미치는 위험정도를 근로손실일수를 통하여 분석하는 데에 목적이 있다. 이를 위해 2012년부터 2016년까지의 7개 도시에서 발생한 28,514명의 장년근로자 재해자수를 12,789일의 기상일수로 나누어 기상요소별 근로손실일수를 산출하였다. 그 결과 기상요소별로는 기온 $-12^{\circ}C{\sim}-10^{\circ}C$, 습도 55% ~ 65%, 강수 128mm ~ 181mm, 풍속 6.0m/s ~ 6.3m/s에서 근로손실일수가 가장 높은 것으로 확인되었다. 기상요소들 간의 결합효과로는 기온 $-8^{\circ}C{\sim}-6^{\circ}C$일 때 습도 39% ~ 41%, 기온 $24^{\circ}C{\sim}26^{\circ}C$일 때 강수 128mm ~ 181mm, 기온 $13^{\circ}C{\sim}15^{\circ}C$ 일 때 풍속 6m/s ~ 6.3m/s, 습도 43% ~ 47%일 때 강수 2.8mm~4mm, 습도 19% ~ 22%일 때 풍속 3.6m/s ~ 3.9m/s, 강수 22.6mm ~ 32mm일 때 풍속 6.0m/s ~ 6.3m/s에서 근로손실일수가 매우 높은 것으로 확인되었다. 따라서 이 연구는 기상요소가 장년근로자의 근로손실일수에 미치는 영향을 고려하여 작업장에서 장년근로자들의 효율적인 안전관리와 쾌적한 작업환경을 위한 기초자료로써의 활용되기를 기대한다.

Keywords

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Fig. 1. Research background of study chart

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Fig. 2. Difference black and wite by Work Loss Day

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Fig. 3. Scatter plot matrix

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Fig. 4. Spectrum of Work Loss Day by Temperature

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Fig. 5. Spectrum of Work Loss Day by Humidity

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Fig. 6. Spectrum of Work Loss Day by Precipitation

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Fig. 7. Spectrum of Work Loss Day by Wind Speed

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Fig. 8. The combined effect on Work Loss Day

Table 1. Estimation of Work Loss Days in accordance with the Method of Estimating the Number of Day Loss of Care Workers

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Table 2. Annual work loss change

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Table 3. The composition of Work Loss Day

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Table 4. Setting the interval by weather element

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Table 5. Regression result

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Table 6. Risk range based on weather factors

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Table 7. Risk range from previous study

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References

  1. Ahn, H. S. (2006). "The Quantitative Assessment of Occupational Accident Reduction by the Injury Ratio Survey Regulations." Journal of the KOSOS, 21(3), pp. 59-66.
  2. Jang, M. H., and Yoon, Y. S. (2008). "A Method of Using-time Weather Information to Manage Construction Schedule." Architectural Institute of Korea, 24(9), pp. 123-130.
  3. Kim, D. I., and Lee, C. S. (2017). "An Analysis of Fatal Accident in Construction Field for Hourly Weather Condition." Korea Construction Engineering and Management, pp. 89-92.
  4. Kim, H. J. (2012). "A Study on the Relationship between Construction Site Disaster and Rainfall." Dissertation of master degree in Gyeongbuk National University.
  5. Lee, G. H., You, S. G., Shin, W. S., and Son, C. B. (2017). "An Analysis Safety Management Level in Construction Site for Climate Change and Its Improvement Plan." Architectural Institute of Korea, 37(2), pp. 851-852.
  6. Lee, H. S., Cho, S. J., Park, M. S., Hwang, S. J., and Kim, H. S. (2012). "A Study of the Work Efficiency in the High Altitude according to Climate Elements." Korean Journal of Construction Engineering and Management, KICEM, 13(3), pp. 67-77. https://doi.org/10.6106/KJCEM.2012.13.3.067
  7. Lee, K. H., Shin, W. S., and Son, C. B. (2017). "An Analysis of Safety Accident Severity and Management Plan for Construction Workers." The Korea Institute of Building Construction, 17(1), pp. 187-188.
  8. Lee, K. H., and Son, C. B. (2015). "Construction Analysis of Deaths due to Precipitation in the form of Construction Site." The Korea Institute of Building Construction, 17(1), pp. 206-207.
  9. Lee, M. Y., Oh, S. W., and Lim, S. J. (2016). "A Study of Improvement on Accident Rate Index of Construction Industry." Korean Journal of Construction Engineering and Management, KICEM, 17(5), pp. 108-119. https://doi.org/10.6106/KJCEM.2016.17.5.108
  10. Park, J. K., Jung, W. S., and Kim, E. B. (2008). "A Study on the Influence of Extreme Heat on Daily Mortality." Journal of Korean Society for Atmospheric Environment, KOSAE, 24(5), pp. 523-537. https://doi.org/10.5572/KOSAE.2008.24.5.523
  11. Shin, M. G. (2012). "A Study of Prevention of against Construction Safety Accidents due to Climate Change." Dissertation of master degree in Incheon National Technology University.
  12. Shin, W. S., Lim, G. J., and Son, C. B. (2016). "An Analysis of Fatal Accident in Construction Field for Climate Factor and its Management Plan." The Korea Institute of Building Construction, 16(1), pp. 70-71.
  13. Smith, P., and Brouha, L. (1972). "The Role of Humidity in the Evaluation of the Stress Imposed on Men Working in Hot Environments." New York, Reinhold.
  14. Son, C. B., and Kim, S. C. (2005). "A Study on the Influence of Climate Factors on Construction Accidents." Journal of the Korean Society of Safety, 20(2), pp. 91-97.
  15. Yang, H. S. (2016). "The Hindrance Factors of Worker's Safety Awareness - Focused on the Workers of Construction Site." Dissertation of master degree in Myunggi University.
  16. You, S. G., Shin W. S., and Son, C. B. (2017). "Association Analysis Between Fatal Accident and Discomfort Index in Construction Industry." The Korea Institute of Building Construction, 17(1), pp. 39-40. https://doi.org/10.5345/JKIBC.2017.17.1.039