A recent residential environment has developed highly dense around at the public roads mainly as the ease of access and convenience of transportation. Due to the development of lifestyle of above reasons, human beings are facing a noise problems caused by road traffic. In this study, investigated a automotive tire noise contribution at the Vehicle Internal and External by actual test using Electric Vehicle(EV) which have been developing and selling actively in recent years. And identified a tires & road noise characteristic and pure tire noise that excludes the Powertrain & Exhuast sytem noise. As a following steps, predicting a Pass-by Noise by using the identified tire noise level that measured on actual test and based on the Pass-by Noise prediction to figured out a noise influence with noise contour map of tire noise on the city environment through the computer simulation.

Abstract
1. 서 론
2. 이론적 배경
    2.1 도로교통소음
    2.2 자동차 소음원의 실 · 내외 기여도 평가
3. 측정장치 및 방법
    3.1 측정 장치
    3.2 측정방법
4. 실험결과 및 분석
    4.1 자동차 소음원의 실 · 내외 기여도 평가 결과
    4.2 주행조건에 따른 타이어 · 노면마찰 소음 비교
5. 결 론
Reference

• 김병삼(Dept. of Mechanical Engineering, Wonkwang University) | Byoung-Sam Kim Corresponding author