Exposure to noise may constitute a health risk examined in epidemiologic studies. Indeed, we do not get used to noise but cumulate its effects. Furthermore, noise with highly variable levels increases the negative impacts. In urban areas, such situations are common due to traffic dynamics. On the other hand, in operational studies, one has typically to estimate the noise level at the building frontage, in application of French environmental noise regulation. In this work, we would like to adopt another point of view. We want to focus on the noise exposure of pedestrians during their displacements in urban areas, rather than the exposure of people when they are inside a building. The case study is a section of an urban boulevard with six traffic lights. The method developed in this work relies on a predefined set of receivers and the calculation of the dynamic noise levels at such locations. We can then assess the whole exposure of the pedestrian during his route. Several routes have been analyzed and characterized using traditional and dynamical indicators.