The Noise Level in Residential Areas Bordering Jagorawi Highway

Abstract

Noise pollution has not become a priority in environmental issues, but the potential negative impact on society based on studies can be in the form of physical and psychological disturbances, the main cause of noise in the urban area is transportation. Identification of noise sources needs should be done to ensure that the sound produced accordance with environmental characteristics. The Jagorawi toll road is the 3rd density toll road in the Jabodetabek area, compared to several other toll roads. Jagorawi toll road is bordered by residential areas. In the Cibubur-Cimanggis sector, this toll road is directly adjacent to residential areas with a distance of < 20 meters and some points do not have barriers to reduce noise. The Cibubur-Cimanggis sector is currently developing with the addition of the LRT, which will operate in 2022 so that current noise measurements can be used as baseline data at the study site. This noise monitoring is intended to conclude whether or not there is an effect of noise felt by the surrounding community from activities on the Jagorawi toll road and to obtain a reduction in noise levels using a single barrier with a height of 0.5, 1, 1.5 and 2 m. Noise monitoring is carried out using SNI 8421:2017 for 24 hours at 2 measurement points in residential areas. Point one and point two each have a noise value (Lsm) of 68.87 and 61.29 dBA with a correlation value of 0.605 (medium). The noise value has exceeded the quality standard for residential designation based on the Minister of Environment Decree No. 48 of 1996 (55 dBA), so a barrier is needed to reduce the noise received by the community. The analysis of the use of the barrier studied is a single barrier with G = 1. As the result of adding a barrier at point 1 with high 2 m, the noise value can be reduced by 16.7 dBA with a p-value of 0.00, so the addition of a barrier has a significant impact on the noise value. This study found the effect of noise from the Jagorawi toll road up to a distance of 114 m at a point that does not use a barrier, so the role of the barrier along the toll road is very important. With the use of a barrier, the distance required to reduce single noise originating from the toll road to < 55 dBA is 20 m.