New approach to study the propagation of noise cause by railway to the surrounding areas
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Tran Thi Le Hang [1]
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[1] VNU University of Science
VNU University of Science
Vietnam
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- Localización: XI young researchers meeting on conservation and sustainable use of forest systems / coord. por Elena Hidalgo Rodríguez, Francisco Javier Dorado Reyes, Ainhoa Iñiguez Soto, Diego A. Damián Carrión, Samuel Gato Martín, Guillermo Jové Alcalde, Raúl Arcadio Fernández González, 2017, ISBN 978-84-617-9574-1, pág. 16
- Idioma: inglés
- Texto completo no disponible (Saber más ...)
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Resumen
This paper presents results of research on the use of GIS and prediction models in railway noise propagation to assess the impact of noise to the residential sector in the area of the railwaypassing through the provincial / city Hanoi, Ha Nam, Ninh Binh, Nam Dinh and Vinh. Results of measurement at 22 railway segments show equivalent noise level according to characteristics A in 15 minutes (LAeq, 15min) exceeded the Vietnamese standard TCVN 5949-1998. Simplify the measurement results by combining all adjacent segments which have the similar noise level LAeq, 15min (difference <1dB) result in 11 new segments and they were considered as 11 linesources of noise. GIS analysis was conducted to calculate the noise propagation. Resulted noise maps show that the closer distance to railroads, the greater the noise level is. At a distance of shorter of equal to 180m the noise level exceeds TCVN 5949-1998 at every segment. Regions which are most affected by noise caused by railway are Quynh Luu (Nghe An) and Tinh Gia (Thanh Hoa), where the noise level exceeds Vietnamese standards at distances up to 300m. Thepaper also recommend to find and plant appropriate tree band along the railways to prevent the noise propagation to the residential areas.
