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Algiers currently suffers from a very pronounced city/port separation, the negative consequences of this situation affect the daily life of the city, the urban interests of the city, mainly the comfort of the citizens, overlap with the economic interests of the port, because urban activity and port activity remain opposite in nature. Based on its conflicted situation between city and port, the purpose of this article is to prospect through a set of future city / port scenarios. Using the scenario method, this research is carried out in two parts, in a first phase, the aim is to understand the evolution and mutations of port cities considered standard on a global scale, on this basis, and in a second phase, the objective is to prospect the future urban-port of Algiers. Four scenarios for the future reconversion of the port of Algiers, in which Algiers could become one of the great world capitals, are discussed. In fine, the appropriate scenario could be the one that proposes the organization of a universal event such as the Olympic Games. This option remains very interesting and feasible because it will achieve all the goals to promote Algiers in a sustainable way and to put it back in competitiveness against its rivals and counterparts in Mediterranean metropolises.

Historic preservation and urban renewal are frequently interpreted as being at odds. Where the former seeks to preserve, the latter commonly looks to dismantle in order to rebuild. Following World War II, urban renewal philosophies sought to revitalize decaying urban neighborhoods via massive demolition, slum clearance, and rehabilitation. Initiated by local and state legislation, entire blocks of commercial and residential buildings were razed in order to revitalize urban neighborhoods—an impetus for economic redevelopment. This clearance of aging building stock in urban neighborhoods was conceived to provide an opportunity for a new model of housing. The Great Migration in the early 20th Century brought large populations of blacks to Chicago, creating densely populated communities on the South Side that hardened racial fault lines, demanding a need for an urban, high density housing model. The ultimate solution for this need was construction of concentrated, high density public housing. Slum clearance and urban renewal in the 1940s and '50s created large scale displacement of black families on Chicago's Mid-South Side. While many found housing in the deeper South Side, in areas rapidly changing with the onset of white flight, the poorest moved into public housing. In 2000, Chicago Housing Authority's (CHA) Plan for Transformation promised to demolish, rebuild, or renovate Chicago's public housing, serving as a catalyst for widespread neighborhood change in the mid-south lakefront communities of North Kenwood, Oakland, Douglas, and Grand Boulevard (Quad Communities), razing some 18,000 units of low-income housing. Between 1979 and 2015, designation of four historic landmark districts in Chicago's Mid-South Side secured historic preservation as a stabilizing priority for the area. The elimination of high-density, low-income residential housing demanded immediate community development initiatives. Preservation of existing historic building stock provided the stabilization strategies and leverage for redevelopment and revitalization planning. This document investigates historic preservation as a fundamental role in attracting and informing architectural, demographic, and cultural diversity in the revitalization of the Mid-South Side. In addition to the principles of New Urbanism, economic impact studies provide evidence that a mix of building age, size, and use contribute socially, economically, and culturally to the creation and rehabilitation of diverse, sustainable, mixed-use neighborhoods. In addressing the Quad Communities' economic redevelopment initiatives, the empirical evidence assembled in this document illustrates how existing historic building stock in and adjacent to the Quad Communities informs new construction, infill, and market rate housing, supporting sustainable urban neighborhood revitalization.

"Large-scale development is once again putting Toronto's waterfront at the leading edge of change. As in other cities around the world, policymakers, planners, and developers are envisioning the waterfront as a space of promise and a prime location for massive investments. Currently, the waterfront is being marketed as a crucial territorial wedge for economic ascendancy in globally competitive urban areas.