Vegetation in urban streets, squares, and courtyards
- Kang, J.
- Hornikx, M.C.J.
- Van Renterghem, T.
- Smyrnova, Y.
- Forssén, J.
- Cheal, C.
- Botteldooren, D.
- Yang, H.S.
- Jeon, J.Y.
- Jang, H.S.
- Taherzadeh, S.
- Attenborough, K.
- Mandon, A.
DOIAbstract
One of various ways in which vegetation cover used in the greening of urban areas can help improve the health and well-being of people is in how it changes the acoustic environment. This chapter presents findings of computer simulations and scale modelling to examine and quantify the effectiveness of green roof and green wall (vertical garden) systems in reducing road traffic noise for streets, squares, and roadside courtyards. Noise reduction by sound absorption in reflected and diffracted (over roofs) sound paths is investigated. Particular attention is paid to the importance of vegetation placement relative to the receiver/listening positions. Because the soil substrate used for the vertical walls has good sound absorption properties, it...
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