We represented the mean noise for the day and night (Fig. 1 and 2). We clearly roads on the figures as those are noisy axes because of traffic. Something interesting is that the colors are browners (meaning a noise level higher) along the axes during the day compared to the night: this is because there is more traffic during the day compared with the night. We spot a zone having a strong noise in the southern part of the minicipality and another one in the north following quite a straight line : it corresponds to the enter and exit of the tunnel of the highway. Fig. 3 and 4 shows the correlation between the greenness index (x axis) and noise level (y axis) for the day respectively the night. As the slope is increasing for both figures, it shows that  there is little positive correlation between greenness index and the mean noise level. Hence, as the mean noise is increasing, the greenness index increases. This is not the result we expected. Maybe this is because of grid of the analysis which is too large, hence does not capture welly the noise variations, as the roads are not the single source of noise in cities.