1. Pro Survey
2. Setting Goals
- Regional Survey
- Investigation of Future Traffic Volume
- Noise Survey
- Plan Survey
2. Setting Goals
- Establish Noise Standard
- Consideration exterior view, structure stability and the others
3. Establishing Measures
4. Evaluation
- Noise Analysis
- Establish the size of Soundproofing facilities
- Design of Soundproofing facilities
4. Evaluation
- Post Noise measurement
- Verify noise standard ( O.K or NG)
- Follow Up measures