A study concerning tramway noise is described and results are presented. The study consisted of a social survey and a noise measurement program. It appeared that tramway noise does not contribute to the annoyance of the total noise if tramway annoyance is substantially below road traffic annoyance (one or two points and more on a five-point scale). Otherwise, it does contribute and measures that reduce tramway noise annoyance will reduce the annoyance of the total noise. The determinants of tramway noise annoyance are, besides LAeq (24 h), the equivalent level during the night and the presence or absence of squealing and impact noise.