Analysis Of Sound Environment Of Children’s Amusement Space In Integrated Commercial Space

The good environment experience is the necessary characteristic of shopping malls,as well as the sound environment.Nowadays,more and more shopping malls set up children’s amusement space,but there is a lack of research on the sound environment of these space and the effects on adjacent space.Therefore,this paper studies the sound environment of the children’s amusement space and its effects on adjacent space.In this paper,the typical children’s amusement space in the integrated commercial space was selected as the survey site,the relationship between the number of children and the behaviour combinations in the amusement space was extracted by field observation,and the objective measurement and questionnaire survey were carried out on the sound environment and acoustic perception between the amusement space and the adjacent space.Based on the effect of children’s characteristics on the sound environment of amusement space,with the increase of children’s number,the average sound pressure level increases rapidly at first and then tends to be stable.Centralized combination brings the highest sound pressure level,while the dispersal combination mode leads to the lowest sound pressure level in small and medium-sized amusement space.In terms of attention of sound source,with the increase of children’s number,the sound with the highest attention gradually changes from the communication sound between children and parents to the communication sound between children.In the medium-sized amusement space,no matter how the children’s number changes,the sound with the highest attention is the communication between children and parents.In terms of the effect of children’s amusement space on the sound environment in adjacent space,the screams and crying sounds of children and the communication sound between children and parents are regarded as a group of combined sound.With respect to shopping space,the subjective loudness is obviously increased when the average sound pressure level is higher or the proportion of combined sound is relatively low.When the average sound pressure level is 66-76 d BA,the acoustic comfort decreases obviously.With respect to rest space,the subjective loudness increases with the increase of sound pressure level or the proportion of combined sound.The acoustic comfort decreased with the increase of sound pressure level or the proportion of combined sound,and decreased rapidly when the proportion of combined sound increased from 0 to 15%.With respect to dining space,the acoustic comfort decreased significantly with the increase of the duration of the maximum sound pressure level which is over 80 d BA,and shows a trend that first decreased and then tend to be stable with the increase of the proportion of combined sound.The above results show that by adjusting and controlling children’s characteristics,such as the number and behaviour combinations,the sound environment in amusement space can be effectively improved,and then can play an active role in create the sound environment in adjacent space,thereby providing a theoretical basis for the design and improvement of the environmental layout of commercial space.