Road traffic noise and sleep disturbances in an urban population: cross-sectional study

To explore the relationship between sleep disturbances caused by traffic noise and relevant personality traits, such as extroversion-introversion, neuroticism, and subjective noise sensitivity. A cross-sectional study was carried out from January to April 2005 in a central municipality of Belgrade, the capital of Serbia and Montenegro. Noise measurements were performed at 12 measurement sites three times at daytime and twice at night. On the basis of noise measurement results, three streets with the highest and three streets with the lowest values of equivalent sound pressure level (Leq) were chosen to represent noisy (>65 dB(A)) and quiet (