“The Jacobsians sought fresh methods of making cities work — from the grassroots and the bottom up. The subaltern was exalted, the master laid low. Drafting tables were tossed for pickets and surveys and spreadsheets. Planners sought new alliances in academe, beyond architecture and design — in political science, law, economics, sociology. But there were problems. First, none of the social sciences were primarily concerned with the city; at best they could be only partial allies. Second, planning was not taken seriously by these fields. The schoolboy crush was not returned, making the relationship unequal from the start. Even today it’s rare for a social science department to hire a planning PhD, while planning programs routinely hire academics with doctorates in economics and political science. Indeed, Nathan Glazer observed that one of the hallmarks of a minor profession is that faculty with “outside” doctorates actually enjoy higher prestige than those with degrees in the profession itself. They also tend to have minimal allegiance to planning.

“This brings us to the first of the three legacies of the Jacobsian turn: It diminished the disciplinary identity of planning. While the expanded range of scholarship and practice in the post-urban renewal era diversified the field, that diversification came at the expense of an established expertise — strong, centralized physical planning — that had given the profession visibility and identity both within academia and among “place” professions such as architecture and landscape architecture… Today, planners themselves often have a hard time explaining the purpose of their profession. By forgoing its traditional focus and expanding too quickly, planning became a jack-of-all-trades, master of none. And so it remains.

“The second legacy of the Jacobsian revolution is related to the first: Privileging the grassroots over plannerly authority and expertise meant a loss of professional agency. In rejecting the muscular interventionism of the Burnham-Moses sort, planners in the 1960s identified instead with the victims of urban renewal. New mechanisms were devised to empower ordinary citizens to guide the planning process. Tools and processes introduced to ensure popular participation ended up reducing the planner’s role to that of umpire or schoolyard monitor. Instead of setting the terms of debate or charting a course of action, planners now seemed content to be facilitators — “mere absorbers of public opinion,” as Alex Krieger put it, “waiting for consensus to build.”

“The fatal flaw of such populism is that no single group of citizens — mainstream or marginalized, affluent or impoverished — can be trusted to have the best interests of society or the environment in mind when they evaluate a proposal. The literature on grassroots planning tends to assume a citizenry of Gandhian humanists. In fact, most people are not motivated by altruism but by self-interest.

“The third legacy of the Jacobsian turn is perhaps most troubling of all: the seeming paucity among American planners today of the speculative courage and vision that once distinguished this profession…”