Analysis of Traffic Noise Levels in Heterogeneous Traffic at the Five-Way Intersection Underpass

Abstract

The increasing number of motor vehicles has resulted in higher road noise levels, contributing to environmental issues beyond traffic congestion, such as noise pollution. Noise is a physical factor that can negatively impact health and safety. This study aims to analyze the current noise levels generated by heterogeneous traffic at the Simpang Lima Underpass, Sultan Hasanuddin Airport, and predict noise levels for the next 10 years. Data was collected using a sound level meter (SLM) to measure traffic noise. Based on calculations of the annual growth rate of motor vehicles, the predicted noise level for the next 10 years at Jl. Underpass Makassar-Maros is 89.97 dB(A), exceeding acceptable limits and requiring mitigation measures. According to the Instruction of the Ministry of Public Works No. 1 (2003) on Road Environmental Capacity Calculations, the measured and predicted LAeq values using the GIS RLS 90 model surpass the allowable thresholds, highlighting the urgent need for noise control strategies.