I beg to differ. Out of such a large population, Chinese streets are quieter than the ones of many western nations. The biggest noise makers are the construction/farmers vehicles and development projects but criminals, knowing the punishment may be a bullet to their head, are often silent with their deals.

...being a foreigner with a chinese wife, I would be more a fraid of male chinese with jealousy/mental problems brandishing meat cleavers or chinese swords.