Integral Assessment of Risk Level in Libraries using the Grey Clustering Method
Alexi Delgado1, J. Maguiña, R. Cabezas2, S. Hidalgo2, Ch. Carbajal3

1Alexi Delgado, Department of Engineering, Mining Engineering Section, Pontificia Universidad Católica del Perú – PUCP, Lima, Peru.
2J. Maguiña, R. Cabezas, S. Hidalgo, Environmental Engineering Program, Universidad Nacional de Ingeniería, Lima, Peru.
3Ch. Carbajal, Administration Program, Universidad de Ciencias y Humanidades, Lima, Peru. 

Manuscript received on 02 August 2019. | Revised Manuscript received on 05 August 2019. | Manuscript published on 30 September 2019. | PP: 6644-6650 | Volume-8 Issue-3 September 2019 | Retrieval Number: C5695098319/2019©BEIESP | DOI: 10.35940/ijrte.C5695.098319
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Abstract: The purpose of this study is to simultaneously analyze the different risk factors (lighting, noise, and ergonomics), obtain an overall assessment of the risk of these factors and classify them in scales of levels of: Very poor, poor, good and very good, from three libraries of the National University of Engineering. In order to classify them, the grey clustering method was used, which establishes two types of data: Standard data and sampling data, the first one refers to the minimum standards required to be met by a library according to each criterion (lighting, noise, ergonomics). The second one refers to the real data obtained in the field. Both data are evaluated in the indicated methodology and the clustering vector is constructed, which will allow to classify the libraries in the scales of established levels. According to the results obtained, it was determined that the lowest noise levels were obtained in the library of the Faculty of Environmental Engineering; nevertheless, these levels are not within the minimum standards of noise for libraries; in addition, it was determined that the lowest values obtained in illumination of each library correspond to the library of the Faculty of Environmental Engineering, since it is in levels of illumination significantly below what is required according to the minimum standards. On the other hand, adequate lighting levels were obtained in the library of the Faculty of Sciences, and it was determined that the best ergonomic comfort was obtained in the Central Library. According to the overall assessment of each of the libraries under study, according to the scale of levels established, it is concluded that the library of the Faculty of Environmental Engineering is at a poor level with respect to the other libraries (good level).
Keywords: Ergonomics, Industrial Safety, Industrial Hygiene, Grey Clustering, Risk Assessment.

Scope of the Article: