Measurement and Evaluation of the Construction Safety Sign Panel Using Colorimeter

측색기를 활용한 건설안전표지의 측색과 평가

Abstract

Safety sign panel has been used in construction sites to assure the safety of the workers. Such safety panel can be categorized as 4 different signals, such as prohibition, warning, indication, and information. Each of the categorized item must follow lawful which is specifically designated for its own purposes, on its color and the shape. However, the color and shape of the safety sign panels that have been used in construction sites are not found to follow the suggested lawful requirement, and such differences are originated from safety merchandise production company or vendor, and construction company. In this study, samples of safety sign panels were obtained from various construction sites in Republic of Korea then the colors of such samples were measured, analyzed, and compared. According to the results, colors of the safety sign panels were out of the lawful requirement due to the aging and surface contamination of the safety sign panel. Frequent maintenance on the safety sign panel is therefore necessary. In addition, steel panels that were used in the construction sites were found to be unsuitable to meet the lawful requirements. In order to the color requirements on safety sign panel, it is recommended for Korea Occupational Safety and Health Agency to provide standard reference sample for each material used to produce safety sign panel, to distribute them to the producer and construction sites, and to supervise overall system.

본 연구에서는 건설현장에 설치된 표지판을 측색하여 색기준에 대한 적합성 검토와 현장여건에 적합한 관리 방안을 제시하고자 하였으며, 현장에 설치된 안전표지판은 관련기준에 적합한 정도가 적색 33%, 황색 22%, 청색 3%, 녹색 28%로 나타나 각각의 현장에 설치된 법적인 기준에 대부분 적합하지 않은 것으로 나타났으며, 청색 안전표지판에 대하여 보다 적극적인 제조생산과 관리에 대한 관련기관의 감독이 필요하다.

Figure 1. CIE L*a*b* ^color space

Figure 2. Safety sign panel

Figure 3. Safety sign panel sample

Figure 4. Color of safety sign panel sample

Figure 5. Color a* b* of sample

Figure 6. Photo of sample

Figure 7. Brightness (L*) of sample

Figure 8. Mean value a* b* of sample (2017)

Figure 9. Mean Value a* b* of sample (2018)

Figure 10. Color a* b* of sample

Figure 11. Red a* b*

Figure 12. Yellow a* b*

Figure 13. Blue a* b*

Figure 14. Green ab

Table 1. Color standard of safety sign panel

Table 2. Conversion color standards

Table 3. Range of a* b*