A COMPARISON STUDY OF NOISE LEVELS ON STEEL RAILWAY BRIDGE

초록

With the recent advent of high-speed rail, railwWays brought about new technolog-ical advances resulting in the improvement of traffic convenience and reduction in transport time, and they have made a significant contribution to regional development and rise in the standard of living. However, the improvement of living standards led to an increase in the de-sire for a pleasant environment. As railroads situated on the outskirts of the city was located to the city center, the problems of vibration and noise according to the three-dimensional uti-lization of the railway tracks due to the effects of previously constructed roads have emerged as environmental issues of the surrounding area and riding environment. In this regard, this paper was designed to establish methods for noise reduction on the railroad that passes through railway bridge and surroundings of railway bridge that goes all the way across the city center due to the impact of urban roads. Towards this end, noise characteristics were in-vestigated when a train passes through the steel bridge frequently applied among bridge structures, and the measured distance and speed by vehicle type were analyzed. Research re-sults showed that the average nose level in the line side of the steel bridge was measured at 102dB, and the average noise attenuation was 3.7dB.