Avaliação da proposta de readequação da rotatória da Av. Aguanambi x BR-116 utilizando a microssimulação

Abstract

Urban development combined with evolution of motorized transportation has led serious consequences, such as pollution, traffic accidents and traffic jams. Part of difficulty is due to the intersections, which usually present some operating performance problems and security problems by flows with juxtapositions. One of the challenges for professionals involved to the design and operation of road traffic in urban areas is to choose the best configuration of intersecting areas, mainly depending on the demand and its interaction with available infrastructure options. The use of simulation techniques has enabled the development of new technologies for optimizing operational performance of transportation systems. This work contributes to the widespread use of microscopic simulation as a modeling tool of operational performance transportation systems in urban intersections. This study modeled the roundabout Aguanambi x BR-116 as it is currently and after the proposed changes by TRANSFOR. The roundabout currently has a high level of delay and has a high degree of entanglement, resulting in accidents. Thus, this work aims to evaluate the modeled travel times, current and proposed, by the use of the microsimulator VISSIM. The area of interest was coded using images from Google Maps. The information concerning the traffic demand and route choice were obtained respectively by Traffic Control Area in Fortaleza (through SCOOT) and the program QUEENSOD. Genetic algorithms have been used to the calibration of the program, including an average delay in three intersections as a measure of performance. Calibration results could reduce the RMSE error (root mean square error) of the average delay of 19,5 to 17 seconds per intersection. As an alternative to the current configuration, it was evaluated the implementation of an interconnection at the site according to the project proposed by the Department of Infrastructure in the city of Fortaleza - SEINF. The analysis of scenarios considered the average travel time as a measure of performance, achieving a 35% improvement in travel time per intersection.