Abstract
The effect of road traffic noise from heavy vehicles during the night was investigated in a two week laboratory experiment. Body movements, heart rate, subjective sleep quality, mood and performance was evaluated among two different groups of subjects, non-sensitive and sensitive to noise. Acute physiological effects, increased heart rate and an increased number of body movements, in connection with noise events were found and neither of these reactions decreased towards the end of the noise period. A significant effect on subjective sleep quality was found only among the sensitive subjects. No habititation was seen for the negative influence of noise on sleep quality, mood and performance.
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