The analysis of the road humps influence on traffic noise is based on ASJ RTN-Model 2008 of noise emission. A single hump decelerates each vehicle and decreases noise emission. Unfortunately, the subsequent accelerations bring about an increases in noise emission. A series of humps lowers the average vehicle speed and, under certain conditions, reduces traffic noise level. It is shown that this reduction is a function of two variables: the distance between two successive humps and the vehicle speed in the absence of humps.