Violence is required to achieve the new urban world on the wreckage of the old. Haussmann tore through the old Parisian impoverished quarters, using powers of expropriation for supposedly public benefit, and did so in the name of civic improvement, environmental restoration, and urban renovation. He deliberately engineered the removal of much of the working class and other unruly elements, along with insalubrious industries, from Paris’ city center, where they constituted a threat to public order, public health and, of course, political power. He created an urban form where it was believed (incorrectly, as it turned out, in 1871) sufficient levels of surveillance and military control were possible so as to ensure that revolutionary movements could easily be controlled by military power.
David Harvey, Rebel Cities, 2012.