Read the following passage carefully.
For much of the twentieth century, orthodox urban planning operated on the premise that informal street economies were a symptom of underdevelopment, an anomaly to be formalized or eradicated. Planners, heavily influenced by modernist ideals of order and rigid zoning, sought to strictly separate commercial, residential, and industrial spaces, leaving little room for the chaotic, mixed-use reality of street vending. Consequently, municipal policies predominantly focused on punitive measures, confiscation, and the relocation of vendors to peripheral zones.
In the late 1980s, however, demographic and economic shifts in rapidly expanding megacities forced a reevaluation of this rigid framework. As formal employment sectors stagnated, informal economies not only absorbed massive labor surpluses but also demonstrated remarkable logistical efficiency. Sociologists began to document how street vendors provided essential services to low-income neighborhoods, effectively subsidizing the cost of urban living. This empirical evidence directly contradicted the modernist assumption that informality was an economic dead-weight.
Responding to this data, a new cohort of spatial theorists proposed the "inclusive city" model, which argued for the architectural and legal integration of informal work. Rather than displacing vendors, these theorists advocated for adaptable infrastructure—such as widened sidewalks with designated vending nodes—and flexible licensing schemes that recognized communal tenure. This approach conceptualized the street not merely as a conduit for vehicular transit, but as a legitimate, productive public sphere.
Despite the intellectual triumph of the inclusive city model within academic circles, its practical implementation has frequently revealed a troubling paradox. When municipal governments attempt to formalize and integrate street vending, they often impose stringent sanitary and aesthetic regulations that disproportionately burden the poorest vendors. Thus, while the theoretical paradigm has shifted from eradication to inclusion, the resulting regulatory frameworks sometimes inadvertently replicate the exclusionary effects of the modernist planning they were designed to replace.
Arrange the following descriptions of rhetorical function into the exact chronological order in which they appear in the passage.
- 1Describing a historically dominant paradigm and its practical consequences.
- 2Citing evidence that contradicts the assumptions of an established orthodoxy.
- 3Outlining an alternative theoretical model designed to integrate a marginalized phenomenon.
- 4Identifying a paradox in the implementation of a new theoretical model.