Compared to (random example) Melbourne https://www.researchgate.net/figure/Greater-Melbourne-area-and-road-noise-model-predictions-2011-at-the-level-of-10-10-m_

Compared to (random example) Melbourne https://www.researchgate.net/figure/Greater-Melbourne-area-and-road-noise-model-predictions-2011-at-the-level-of-10-10-m_fig1_335637475 https://www.researchgate.net/figure/Greater-Melbourne-area-a... it's about the same as being right next to a major street at rush hour. The difference is that the rush hour doesn't last 24h and is not a monotonous sound. The traffic is both naturally limited at night and there are extra restrictions on heavy traffic. The buildings right next to the big streets also typically account for this, both explicitly (noise insulation) and implicitly (larger buildings, more neutral isolation from the vibrations). From the same study: > At these estimated noise levels, approxi- mately 5% of the population would be exposed to road traffic noise above the IHD risk threshold of 55 dB