English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Recently, the speed of high-speed railway has been rapidly increased with the development of high-speed train design and operating technology. This causes a lot of complaints related the environmental noise in residential areas near the high-speed railway. Also the civil complaints about environmental noise of high-speed railway are also increasing continuously. In this study, we was surveyed the current state of soundproofing facilities for high-speed railway and general railway in Korea, and conducted long-term monitoring of the noise reduction device installed to supplement soundproofing facilities. And in order to evaluate the field application performance through long-term monitoring, domestic and overseas evaluation methods were analyzed. Through such research, we have presented the two types method to verify the performance of the newly developed noise reduction device. One is to evaluate before and after installation, and the other is the evaluation method which measures installed and not installed site at the same time. The results of monitoring using these evaluation methods according to the season for 5 years, it has been confirmed that performance of the noise reduction device is consistently above 3 dB.

A Study on the Field Application of the Noise Reduction Device to Supplement the Soundproofing Facility for High Speed Railway