Transporte de semirreboques entre as estações de transbordo de cargas e as suas implicações no trânsito de Manaus

Abstract

This study aimed to analyze how the transportation of dry van trucks originating from the inland waterway mode affects urban traffic flow in the city of Manaus. Considering the growth of logistics activities in the region and the structural limitations of certain roadways, the research sought to understand the relationship between the volume of heavy vehicles and road performance at different times of the day. A quantitative approach was adopted, using data collected from a transportation company, including the identification of cargo transshipment terminals, travel routes, and the measurement of travel times by time period. The results indicated that the impact of dry van truck transportation on traffic flow does not depend solely on vehicle volume but is also influenced by the physical and functional characteristics of the road network. Statistical analyses showed no significant correlation between the number of dry van trucks and variations in travel times, with R² values of 0.0126 for Route 1 and 0.0264 for Route 2, indicating the absence of significant anomalies exclusively associated with the circulation of these vehicles. Although the highest number of logistics movements occurs during the morning period, the most pronounced increases in average travel times were observed in the afternoon, with increases of 12.5% on Route 1 and 14.3% on Route 2, coinciding with the general peak of urban traffic. This demonstrates that congestion in the urban road network exerts a more significant influence on route performance than logistics operations themselves. It is concluded that, under the conditions analyzed, the presence of dry van trucks does not constitute an isolated determining factor for the degradation of traffic flow, as traffic performance is strongly conditioned by roadway capacity, urban flow distribution, and infrastructure conditions. The findings reinforce the importance of integrated analyses between urban logistics and transportation planning, contributing to a better understanding of the actual impacts of heavy freight transport on traffic dynamics in Manaus.