The train noise and vibration nearby the elevated railway make one specific issue. For the elevated railway, this paper concerns vibration by the bridge. this paper presents vibration level of vibration source of train. The prediction model gives the effects of ground attenuation, and barrier attenuation of noise. The acceleration array method is used to search vibration propagation characteristics of elevated structure to predict the vibration propagation from an elevated railway. Based on the results, this paper proposes the source model of elevated structure-borne vibration and the calculation model for elevated railway vibration. Also measure results are presented with rolling vibration and elevated structure vibration.

In order to analyze the water quality variation of surface water around the Sudokwon landfill site, seasonal variations of water temperature, pH, DO, BOD, COD, SS, NH_3-N. NO_2-N, and NO_3-N were examined at 10 sites from January to December, 1996. It was found that the estimates of COD, DO, SS, and NH_3-N were increased compared with the results of environmental impact assessment carried out in 1988. Higher estimates of COD, DO, and SS were due to industrial and agricultural wastewater, and the increase of NH_3-N at Jangdo reservoir site was due to the leachate from the landfill. In particular, the estimate of SS was found to be increased by the soil wash from the landfill during the heavy rainy days.