<p>Coal mining has a crucial role in electricity generation as one of the essential cornerstones of sustainable development. The environmental impacts dominated by the fuel consumption of mobile equipment in both surface and underground coal-mining activities are considered as one of the most demanding operations. This study investigates the environmental burden of haulage operations focusing on greenhouse emissions originated from the fossil fuel consumption of trucks. The impact of traffic-related blockage of haul trucks for a coal mine is analyzed by developing simulation models that provided locations of comparably greater fuel consumption due to idle time, blockage, and other inefficiencies. As a countermeasure against increased fuel consumption, mine plans were revised aiming to solve traffic issues. The potential improvement is investigated by building new simulation models to determine the required number of trucks to meet the planned future production. The environmental impacts of haul trucks were studied by accounting the change in fuel consumption on different road conditions. It was proven that the new mine plan and road network helped to solve the traffic issue by increasing the production rate and mitigate 41.8% of greenhouse gas (GHG) emissions.</p>