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- Research on the physical and psychological sound reduction effects of tree-planting zones around roads
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Research on the physical and psychological sound reduction effects of tree-planting zones around roads
This is a summary of the three-year research results from FY1982 to FY1959, which attempted to evaluate the psychological sound reduction effect in addition to the physical sound reduction effect of the tree-planting zone. (issued in March 1985, B5 version 173 pages)
Last updated on January 30, 2020.
- Hashigaki (PDF: 109KB)
- Table of Contents (PDF: 176KB)
- Introduction (PDF: 102KB)
- Physical sound reduction effect
- Purpose of this study (PDF: 164KB)
- Attenuation of sound due to natural environment (PDF: 746KB)
- Progress of this study (PDF: 1,664KB)
- Physical reduction effect of tree-planting zone (PDF: 2,740KB)
- Combination effect of tree planting zone and sound insulation wall (PDF: 1,280KB)
- Effects of installing tree-planting zones on roads in urban areas (PDF: 547KB)
- Summary of physical sound reduction effect (PDF: 138KB)
- Quotations and References (PDF: 147KB)
- Psychological sound reduction effect
- Purpose of this study (PDF: 118KB)
- Progress of this study (PDF: 145KB)
- Overview of Experiments 1,2,3 (PDF: 230KB)
- Experiment 4 Verification of the psychological sound reduction effect of green (PDF: 695KB)
- Experiment 5 Noise level corresponding to the image of "silence" (PDF: 2,516KB)
- Experiment 6 Improving the image of "tranquility" by tree planting zone (PDF: 3,780KB)
- Summary of psychological sound reduction effect (PDF: 178KB)
- Quotations and References (PDF: 58KB)
- Summary (PDF: 128KB)
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