ANALYSIS OF DIESEL LIGHT-DUTY VEHICLE EMISSION ON PENGAYOMAN STREET IN MAKASSAR CITY

Abstract

This study aims to analyze the emissions of diesel-fueled light vehicles in 14 segments of Jalan Pengayoman, Makassar City, namely segments A to N. The first stage is to analyze the emissions of light vehicles using two methods, namely the IPCC Tier 2 method and the Metropolitan Traffic Emissions Inventory Model method. The second stage is to conduct a statistical test of RMSE for the results of both methods. The results of the analysis of vehicle emissions at the morning peak from both methods in 14 segments of each CO2 emission between 0.539kg–5.64 kg, NOx between 0.005kg–0.05 kg, CO 0.004kg–0.04 kg, SO2 0.0006–0.06 kg, PM10 0.0008kg–0.008 kg, and HC 0.0008–0.008 kg. Vehicle emissions during the afternoon peak from both methods in 14 segments show CO₂ emissions of 0.318–5.64 kg, NOx of 0.003–0.05 kg, CO of 0.0024–0.04 kg, SO₂ of 0.0004–0.06 kg, PM10 of 0.0005–0.08 kg, and HC of 0.0002–0.03 kg. The highest emissions during the morning and afternoon peak hours were found in segment K. The dominant pollutants produced by diesel-fueled light vehicles were CO₂ and NOx. Vehicle emissions increased between the morning and afternoon peak hours in segments E, F, L, J, and I, ranging from 9% to 67%. The results of the IPCC Tier 2 emission RMSE test and The Metropolitan Traffic Emissions Inventory Model during the morning and afternoon peak hours produced figures ranging from 0.003 to 0.069. It can be concluded that the results of the IPCC Tier 2 emission calculations and the Metropolitan Traffic Emissions Inventory Model are not dissimilar. This study illustrates the importance of analyzing and evaluating emissions from diesel-powered light vehicles and developing more effective emission calculation methods.