[Study about noise pollution in the Nomentano quarter of Rome and its perception by residents]

The Authors describe the results of an investigation, carried out in the Nomentano quarter of Rome, to evaluate noise pollution level by road traffic and the annoyance in a resident sample. The measurement places have been subdivided according to three categories of streets ("flowing ", "quarter" and "local" streets); the LAeq (equivalent continuous level of noise) was taken during the day (from 7 am to 19 pm), the evening (from 19 pm to 23 pm) and the night (from 23 pm to 7 am). The results have been compared with previous study's data taken in 1988 and with the prescribed noise's limit values of the current national regulations. Lden values, the Community recommended acoustic parameter were also calculated. At the same time an interview was carried out to investigate resident's annoyance level; the results are discussed in relationship with registered noise levels.