it is not possible to eliminate the risk from the absolute requirement to move heavy bulk stuff, through and in citys. roads need work, big things break and fail ,wherever they are, new stuff gets built, again, precisly, wherever, it gets built. civil engineering is completly mature,and wildly boreing,and will dry your eyes out. much of the cannon is millenia old, with fuck all room to "inovate" and what works in one place, is a total fail somewhere else. what is more is that the ancient world is littered with the ruins of civilisations and citys, that did fail, and in every case part or all of that failure was to overextend, undermaintain, there infrastructure, or worse, jump to some new flashy thing that then fails, spectacularly. having walked through those ruins, and marvled at there engineering and planning of infrastructure, and also become a keen reader of all things civil or infrastructure engineerin, and also aircraft engineering, where the most important concept is up front, "failure mode", I have no respect for sudden ideas, and approve of what China has done to prohibit un educated comentary on infrastructure development and implimentation. "influencer engineering" by way of "saftey"