| Reference Number | Y130322 |
|---|---|
| Title | Study on Analyzing Methods for Road Traffic Noise Situation |
| Start-End Date | 2010.4-2014.3 |
| Division | Road Environment Division, Road Department |
| Author | Head, Katsunori KADOYU Senior Researcher, Hiroshi YOSHINAGA Researcher, Keiko KIMURA |
| Summary | This study aims to clarify the noise situation on roads under the control of Ministry of Land, Infrastructure, Transport and Tourism. It is also intended to obtain the knowledge needed to select the prior noise abatements and sites. The environmental quality standard achievement rate for noise in rooms has been estimated in fiscal 2010. The survey on operating conditions of the criteria in foreign countries, and discomfort for various RTN (road traffic noises) had been done in fiscal 2011. Noise, vibration, and low-frequency sound had been recorded on types of sound sources and measurement of psychological aspects by replaying the noise and vibration had been done in fiscal 2012. Collecting data to quantify the noise reduction by the new abatement measures and studies of noise rating methods based on roadside residents' actual perception had been done in fiscal 2013. The results of these studies showed the knowledge on the statistical situation of RTN in rooms, the cause of unpleasant RTN, and a new method to quantify the discomfort caused by RTN. |