The Soundscape Of Sen. Salgado Filho Avenue, Natal/RN- Brazil: The Acoustic Impact Caused By The Insertion Of Semi-exclusive Bus Lane.

摘要

Actions have been adopted in brazilian roads in order to prioritize collective transportation over the individual. In Natal/RN, the lane next to the sidewalk was destined to the bus circulation at Senador Salgado Filho Avenue, raising questions about the noise impact felt by people at bus stops and sidewalks. Therefore, the objective is to understand the influence of the road configuration on the environmental sound quality to point out elements for mobility plans. The methodology used was: measuring of sound pressure levels at bus stops; questionnaires to verify the evaluation of the pedestrians on the sound impact of the semi-exclusive lane; development of acoustic maps based on the current scenario and the reallocation of public bus lanes to the central site. The results demonstrated that sound levels on sidewalks are higher than those recommended by World Health Organization, and that people are disturbed by the noise due to the proximity of the buses. Through the calibrated models, it was found that the location of the semi-exclusive lane on the right produces less noise than in the central bed (a solution adopted in others roads in the same city), demonstrating how the studies of sound impact can be used in urban and mobility planning to increase the pedestrian's comfort on sidewalks.