Análise da capacidade viária e nível de serviço de uma rótula moderna entre Avenida Bruno Ruggiero Filho e Avenida Parque Faber na cidade de São Carlos (SP)

Abstract

With the growth of populations and urban networks, there is also an increase in the number of automobiles, making the flow of traffic troubled and the roads inadequate for the new flow. Thus, there must be studies to keep the intersections and roads at a reasonable level of service. In the present work, the traffic capacity of the roundabout located between Avenida Bruno Ruggiero Filho and Avenida Parque Faber, in the city of São Carlos - SP, is analyzed. The point is located next to a Travel Generator Pole, Shopping Iguatemi. Due to the high flow of vehicles that travel in this device, it was necessary to evaluate the flow capacity, with the purpose of defining the level of service of the same, and also to present possible mitigating measures, in order to reduce local problems. To define the service level of the device, in the current scenario, vehicle counting was carried out at peak hours, with an O/D matrix, using the methodology proposed by the National Department of Transport Infrastructure (DNIT) in the Intersection Design Manual, since it is a modern roundabout. An analysis of the service level in a future scenario was also carried out, calculated for 5 years, with a fleet projection based on real data from the last 4 years. For the case under study, in the current scenario, the service level had a result lower than acceptable in one branch in the morning peak, and in 2 in the afternoon peak. For the future scenario, in the morning peak 1 saturated branch and 3 in the afternoon. Thus, with results demonstrating that the roundabout is not in good use, suffering from congestion and may result in an increase in traffic accidents, it is necessary to deepen the question of measures capable of improving the fluidity of this device.