The object of this paper is to estimation of noise reduction effect of road noise by operating condition due to tire noise regulation. A prepare the countermeasure of the noise reduction according to collect tire/road noise data under various influencing factors by using the tire test method. To accomplish the object : A automotive is used as a test platform to test tire/road noise by changing different types of tires and using the On-Board Sound Intensity test system. The influence of inflation pressure, road, load, speed and pattern type on tire/road noise is compared and analyzed. At the same time, the mechanism of tire/road noise is analyzed, which provides an experimental basis for tire noise reduction.

ABSTRACT
 1. 서 론
 2. 타이어 라벨링 제도
 3. 타이어 소음 측정 및 방법
  3.1 Pass-By Noise 시험
  3.2 OBSI(On-Board Sound Intensity) 시험
 4. 소음 예측 프로그램
 5. 결 론
 References

• 김병삼(Department of Smart Automotive Engineering, Wonkwang University) | B. S. Kim
• 장명(Department of Mechanical Engineering, Wonkwang University Graduate school) | M. Zhang
• 김형두(Department of Fire Service Administration, Wonkwang University) | H. D. Kim Corresponding Author