Assessment of Annoyance caused by Construction Noises
- Title
- Assessment of Annoyance caused by Construction Noises
- Author
- 이성찬
- Advisor(s)
- 전진용
- Issue Date
- 2016-02
- Publisher
- 한양대학교
- Degree
- Doctor
- Abstract
- Because the acoustic environments of construction sites include multiple noise
sources from various construction machines, it is necessary to consider the influence of
combined construction noise on annoyance. The aim of this study is to suggest methods
to reduce annoyance caused by combined construction noise on site. To achieve the aim
of this study, field measurements and a survey have been conducted and evaluated the
construction site noise from machines in operation. Auditory experiments of individual
construction noise and combined construction noise have been conducted to identify the
optimum stationary to mobile machine noise ratio (SMR). Finally, mitigation designs of
construction noise have been developed through site evaluations in order to adjust the
stationary to mobile machine noise ratio. For field measurements, construction noise from
fifteen machines was measured at several construction sites. Physical and psychoacoustic
parameters were analyzed. The survey was a self-reported questionnaire completed by
110 respondents, all of whom are engineers on construction site. The survey found that
the most common adverse outcome of construction noise was annoyance and the most annoying construction stage and construction machines were demolition and breakers,
respectively. To examine the effects of combined construction noise on annoyance, six
construction machines, including machines for foundation work (pile drivers, earth augers,
and pay loaders) and demolition work (breakers, bulldozers, and excavators) were
selected as noise sources in construction sites. Auditory experiments were designed to
quantify the annoyance caused by the machines’ individual and combined noise. The
results show that both individual and combined noise correlate well with the equivalent
sound level (LAeq), but that the annoyance caused by combined noise is significantly
higher than the annoyance caused by individual noise when LAeq increases over 65 dBA.
Among the psychoacoustic measures, loudness is the most important in determining the
annoyance caused by individual noise, whereas both loudness and roughness significantly
impact the annoyance caused by combined construction noise. Ranges of an optimum
stationary-to-mobile machine noise ratio between two construction machine noises are
suggested to minimize the annoyance caused by combined noise. Optimum stationary-tomobile
machine noise ratio ranges usually include 0 dBA when reference construction
noise levels (e.g., pile driver or breaker) are lower than 60 dBA, whereas the stationaryto-
mobile machine noise ratio should be greater than 5 dBA as construction noise levels
exceed 65 dBA. To adjust stationary-to-mobile machine noise ratio in construction sites,
customized noise barriers are developed for breaker, excavator, etc. These findings
provide useful information to establish effective noise management plans for combined
noise sources in construction sites.
- URI
- https://repository.hanyang.ac.kr/handle/20.500.11754/127474http://hanyang.dcollection.net/common/orgView/200000427913
- Appears in Collections:
- GRADUATE SCHOOL[S](대학원) > ARCHITECTURAL ENGINEERING(건축공학과) > Theses (Ph.D.)
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