ESTIMATION OF CARBON DIOXIDE EMISSION IN THE TRANSPORTATION SECTOR ON PRIMARY ARTERIAL ROADS IN WONOKROMO DISTRICT, SURABAYA BEFORE AND AFTER COVID-19

This research aims to determine the number of motorized vehicles of the road transportation sector at primary arterial roads in Wonokromo District before and after COVID-19, the estimated amount of emission produced by motorized vehicles before and after COVID-19 and the correlation between the distribution of the amount and the types of motorized vehicles and the estimated amount of carbon dioxide (CO₂) emission. Data collection for determining the amount and type of motorized vehicles was conducted at Jalan Stasiun Wonokromo, Jalan Bung Tomo and Jalan Raya Ngagel. Data collection was conducted in the morning (06.00-08.00 a.m.), afternoon (11.00 a.m. – 01.00 p.m.) and evening (04.00-06.00 p.m.). This study utilizes the IPCC method to determine the concentration of CO₂ while implementing the IPCC formula in travel distance approach and the idle emission formula in fuel consumption approach. The estimated amount of CO₂ emission load is decreased due to COVID-19 by 44% at Jalan Stasiun Wonokromo, by 62% at Jalan Bung Tomo and by 34% at Jalan Raya Ngagel. The total number of motorized vehicles correlates to the estimated amount of CO₂ emission load where there is an increase in number of motorized vehicles there will be an increase in the estimated amount of CO₂ emission load as well.