The results of the simulations show a decrease of about 3 dB(A) at the facades of the two hospitals after the implementation of the 50% reduction in the total vehicle flow. However, this does not solve the problem of noise pollution in the areas in question, since the noise levels reaching the hospitals' facades remain higher than those permitted by Curitiba legislation, which is a [Leq] of 55 dB(A) [33].