Ruído em Santa Maria - RS a contribuição do tráfego veicular em área mista (residencial/ comercial)

Abstract

The urban noise generated by traffic is shown as being one of the strong means of environmental pollution. It is known that its influence on the people facilitates unhealthy damages. This work tries to contribute with that theme, through measure of urban noise levels in road with great flow characterized as mixed area (commercial / residential) in Santa Maria's city central area - RS. For the evaluation of sound levels it was chosen two measure points whose adopted approach was the high number of vehicles that to transit for the road, besides buses. The level of sound pressure (LAeq) was evaluated, in useful and in week ends days, in shifts defined starting from a previous measure, whose data collection happened among the months of December of 2007 to June of 2008, been the measures driven with the equipment model SOLO, Type 01. Both measured points present different characteristics in terms of relief and urban equipments, due to the topography and traffic signalizations points. As a conclusion of this work, it was observed that largest LAeq obtained in all the measures was 73,3 dB(A) in the Measure Point 01, in the shift of the end of the evening / late afternoon. This shift concentrated on all the evaluations, the largest results.