Jane Jacobs was born Jane Isabel Butzner on May 4, 1916, in Scranton, Pennsylvania.
Jane Jacobs was born Jane Isabel Butzner on May 4, 1916, in Scranton, Pennsylvania. ◦ She had no professional training and only a high school diploma, though she studied at Columbia's School of General Studies for two years, taking geology, zoology, law, political science, and economics. ◦ She organized grassroots efforts to protect neighborhoods from urban renewal, most famously against Robert Moses' plans for her Greenwich Village, and was instrumental in cancelling the Lower Manhattan Expressway. ◦ She was arrested in 1968 for inciting a crowd at a public hearing on the project. ◦ After moving to Toronto in 1968 so her sons would not be drafted for Vietnam, she joined the opposition to the Spadina Expressway, opposed the Vietnam War, marched on the Pentagon in 1967, and criticized the World Trade Center as a disaster for Manhattan's waterfront. ◦ She died in Toronto on April 25, 2006, aged 89. ◦ She opened *The Death and Life of Great American Cities* (1961) with a blunt declaration of war on her own profession's orthodoxy. ◦
Jacobs argued that healthy cities are organic, messy, spontaneous, and serendipitous, thriving on economic, architectural, and human diversity, on dense populations and mixed land uses, not on orderly redevelopment plans that replaced whole neighborhoods with concrete office parks and plazas. ◦ Against the modernist program she named "four generators of diversity" that "create effective economic pools of use": mixed primary uses, short blocks, buildings of various ages and states of repair, and density. ◦ Her aesthetic upheld redundancy and vibrancy against order and efficiency. ◦ She held that a city should be like itself, because every city has differences from its history and its site, and she found it dismal when a city resembled twelve others. ◦ She was scathing about eminent domain turned to private ends, noting that government powers intended for public things were used instead for the benefit of private organizations and individuals. ◦ She framed economic vitality as a birth rate of enterprises, warning that when the big and successful is used to wipe away what was not, you get stagnation. ◦ Her prescription for ailing districts was additive, not subtractive. ◦ Across *The Economy of Cities* (1969) and *Cities and the Wealth of Nations* (1984) she argued that cities, not nation-states, are the real basic units of macroeconomic life, and that growth comes from "import replacement." ◦
She looked at cities from the sidewalks and street-corners up, not from the Ivory Tower down. ◦ She organized grassroots efforts to protect neighborhoods from urban renewal. ◦ In Toronto, she advocated reviving dying industrial areas not by demolition but by removing zoning impediments and adding the one missing use — residence — alongside surviving workplaces. ◦ She prized the mutual support of mixed day-and-night uses and disliked strict segregation of hours. ◦
She conceived of a functioning street as a choreographic performance, calling the city sidewalk "an intricate ballet in which the individual dancers and ensembles all have distinctive parts which miraculously reinforce each other and compose an orderly whole." ◦ She held that safety comes not from police but from watchful self-organizing presence, describing a "marvelous order for maintaining the safety of the streets and the freedom of the city" whose essence is "intricacy of sidewalk use, bringing with it a constant succession of eyes." ◦ Sidewalk life, she argued, builds "a web of public respect and trust" out of contacts that are "ostensibly trivial but the sum is not trivial at all," and it "implies no private commitments." ◦ She framed economic vitality as a birth rate of enterprises, stating that "if you don't have an entrepreneurial birth rate, you don't have new industries and new chances for other successes." ◦ On where lively centers come from, she insisted they cannot be placed by decree, noting that "in a real city or a real town, the lively heart always has two or more well-used pedestrian thoroughfares that meet," and that "you can't stop a hub from developing in such a place" nor "make it develop if you don't have such a place." ◦
Her work centered on city planning and rebuilding, which she attacked in *The Death and Life of Great American Cities* (1961). ◦ She developed economic theories across *The Economy of Cities* (1969) and *Cities and the Wealth of Nations* (1984), arguing that cities are the basic units of macroeconomic life and that growth comes from "import replacement." ◦ She suspected she would be remembered as a thinker less for city planning than for the discovery of import replacement. ◦
Jacobs opened *The Death and Life of Great American Cities* with a blunt declaration of war on her own profession's orthodoxy. ◦ She employed choreographic imagery, describing the city sidewalk as "an intricate ballet in which the individual dancers and ensembles all have distinctive parts which miraculously reinforce each other and compose an orderly whole." ◦ She was scathing about eminent domain, quoting a New York official that "If Macy's wants to condemn Gimbel's, it can do it if Moses gives the word." ◦
Jacobs had no professional training and only a high school diploma, yet her radical ideas about livable cities became near-gospel. ◦ She recalled that once she became "the property of Barnard" she "had to take, it seemed, what Barnard wanted me to take, not what I wanted to learn," and that only her bad high-school marks freed her to keep learning across her own interests. ◦ She argued that suburbs without sidewalk life force a false choice that works only for self-selected upper-middle-class people. ◦ She faulted the New Urbanists for treating lively hearts "as if they were shopping centers," saying "They think you just put it where you want." ◦
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