A high noise sensitivity group tends to judge construction noise to be more adverse than the rest.
Individual noise sensitivity appears to have the most significant influence on the adverse impacts of noise on annoyance, work performance, work safety, and speech interference. A breaker, pile driver, and hammer compactor are rated as the most annoying construction machines in the demolition, foundation, and earthwork stages, respectively. In addition, the annoying equipment differs for each construction stage. The demolition stage is the most annoying, followed by the foundation, earthwork, and concrete framing stages. The results show significant differences in perceived noise annoyance in the various construction stages. The effects of personal (noise sensitivity) and situational (types of jobs, and years of working) factors on the adverse impacts of noise on annoyance, work performance, work safety, and speech interference at work were examined. Four primary construction stages and twenty-four types of construction machines were evaluated. This study aims to assess various perceived adverse effects of noise on construction sites according to the different stages and machinery used in the stages, and to examine whether or not personal-situational factors affect the judgment of managers regarding the adverse impact of noise at work through a self-reported survey method.
2005b): 1 energy summation model -describes the relationship between the overall annoyance and the sound level resulting from the energy summation 2 independent effects model -expresses annoyance as the linear combination of functions of the L eq of each source 3 energy difference model -describes annoyance as the function of the total L eq and of the difference between L eq of distinct sources 4 response summation model (Ollerhead 1978) -a correction factor is added to the total L eq in order to take into account the differences in level between sources 5 dominant source model -the total annoyance equals that of the most annoying source 6 subjectively corrected model -uses correction factors to account for differences in the perceived annoyance due to each distinct source 7 quantitative model (Vos 1992) -similar to point 6 but correction factors depend on the L eq of individual sources 8 summation and inhibition model (Powell 1979) -evaluates the total annoyance according to the total L eq with a correction factor and 9 vector summation model -corresponds to the total annoyance written as the square root of the sum of the squares of each noise source's perceptual variables (Berglund et al. There are currently a number of models that describe the combined effects of multiple simultaneous sources (Marquis-Favre et al.
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