A global multidisciplinary network on housing research and learning Partner Planning Institute in Grenoble – UPMF Authors Kristina Gjini Contributors Adriana Diaconu Date May 6th, 2015 Workspace CONTEMPORARY LIVING PATTERNS: GROWTH / SHRINKAGE Learning Activity LA82 Concepts and contexts of Growth and Shrinkage TASK 1: RESEARCH Main Concepts The aim of this document is to synthesize the definitions given to the main notions used in the Workspace. This is a "work in progress" document to which the different tutors can contribute with additions, amendments, comments. The information provided in this document is meant to serve as a support for students in their work on Task_1 01 Urban Shrinkage The industrialization in the middle of 20th century led to an unprecedented labor force migration towards cities, and to the creation of industrial towns. For these towns industrial era was the time of prosperity and rapid development. However over the last fifty years, due to a number of reasons such as singular economic focus, globalization, and regional politics of development, many former industrial cities are experiencing urban decline and population loss. According to Karina Pallagst 1 , the shrinkage phenomenon in the urban context is a multidimensional process, comprising cities, parts of cities, or entire metropolitan areas that have experienced dramatic decline in their economic and social bases. Urban decline and the loss of employment opportunities became the major causes of outmigration (Pallagst et al, 2009). The demographic loss is a way to describe urban shrinkage. Despite the fact that the numbers cannot fully depict the development trends of a city, population can be used as a reliable indicator for attracting investors and households (Beauregard, 2007). According to this author, a rapid loss of population over a certain period of time is accepted as a way to measure a shrinking city. References: Pallagst, K. et al., (2009) The Future of Shrinking Cities: Problems, Patterns and Strategies of Urban Transformation in a Global Context. University of California, Available: www.shrinkingcities.org [April 2015]. Karina Pallagst is professor at the University California at Berkley Center for Global Metropolitan Studies and lead researcher in the Shrinking Cities International Research Network. 1 PAGE 2 Beauregard, R.A., (2007). Urban population loss in historical perspective: United States, 1820 – 2000, Environment and Planning A 41(3) 514 – 528, Available: http://www.envplan.com/abstract.cgi?id=a40139a [April 2015]. 02 Urban Growth Urban growth relates to the spatial distribution of the economic activities, measured in terms of population outputs and incomes. Population concentration and growth in a specific area is closely linked to economy and transportation. People tend to live in places that offer job opportunities and that are well connected in terms of infrastructure. Nowadays economic growth is fundamentally urban, since it concentrated in urbanized areas. As economies moved from traditional societies’ pattern to the modern stage, the role of the urban sector changed from that of provider of services to that of leader in innovation. Subsequently cities started serving as engine of economic growth (Rossi and Wright, 2004). A flourishing urban economy based on the innovative potential of the city attracts new population, economic and demographic growth thus being intertwined. The economic growth is related to the urban growth and subsequently to the spatial evolution. On the one hand, the urbanization process affects the efficiency of the economic growth and, on the other, the economic growth itself affects the patterns of urbanization. However, Urban Growth is an urban economics term that among others, involves real income differences across cities depending on their specialization. Different types of specialized cities have different size and different demographic trends. Urbanization as a process can foster income inequality not only between cities but also between different areas within a city creating spatial hierarchies. Parental choices of neighborhoods, localized peer groups and human capital investments lead to the spatial stratification of society, which over time becomes real income inequality, dividing society spatially and economically (Black and Henderson, 1999). In the spatial terms, urban growth is also associated to urban sprawl. Demographic movement from cities experiencing economic decline toward growing economic centers creates an additional demand for housing and services. To accommodate this demand, territories experiencing economic growth come to suffer from urban expansion and, in return, from the loss of agriculture land. References: Rossi-Hansberg, E and Wright, M., (2004) Urban structure and growth. Working paper. Stanford: Department of Economics, Stanford University. Available: http://www.princeton.edu/~erossi/UG.pdf, [April 2015]. Black, D. and Henderson, V., (1999) Journal of Political Economy Vol. 107, No. 2 (April 1999), pp. 252-284, Available: The University of Chicago Press, [April 2015]. PAGE 3 03 Urban Sprawl Urban Sprawl, as one of the forms of urban growth, is the phenomena of urban expansion explained in different ways by many scholars. We can summarize in six general categories the way Sprawl has been presented in literature. Firstly, it is defined using an example, which is seen to embody the characteristics of Sprawl, such as Los Angeles. Secondly, the term is often used as an aesthetic judgment about a type of urban development pattern. Thirdly, sprawl is considered to be a side effect of other causes, such as high dependence on the automobile, isolation of the poor in the inner city, or the the spatial mismatch between jobs and housing. Fourthly, Sprawl is seen as the consequence of some independent variables, such as fragmented local government, poor planning, or exclusionary zoning. Fifthly, sprawl is explained as one or more existing patterns of development. Those most frequently mentioned are low density, leapfrogging, distance to central facilities, dispersion of employment and residential development. And last, Sprawl is defined as a process of development that occurs over a certain period of time as an urban area expands (Galster et al, 2010)2. As outlined above, Urban Sprawl is one name for many conditions (Galster et al, 2010). In order to make the term more explicit the authors suggest the following definition: ‘Sprawl (n.) is a pattern of land use in an Urban Area that exhibits low levels of some combination of eight distinct dimensions: density, continuity, concentration, clustering, centrality, nuclearity, mixed uses, and proximity‘ (Galster et al, 2010). It important to keep these urban conditions in mind when examining cities, because demographic movements can be manifested in many dimensions. It is also crucial to understand the context and the specificities of each urban area and its experiences related to growth. References: Galster, G et al., (2001) Wrestling Sprawl to the Ground:Defining and measuring an elusive concept. Taylor & Frensis, Housing Policy Debate, Volume 12, Issue 4, 2001, Available: http://dx.doi.org/10.1080/10511482.2001.9521426 [May 2015]. 2 George Galster is Hilberry Professor of Urban Affairs, Wayne State University; Royce Hanson, Visiting Professor in the Policy Sciences Graduate Program , University of Maryland , Baltimore County; Michael R. Ratcliffe, Geographer in the Population Distribution Branch, Population Division , U.S. Bureau of the Census; Harold Wolman, Director of the George Washington Institute of Public Policy and Professor in the Department of Political Science , George Washington University; Stephen Coleman & Jason Freihage, Graduate Research Assistant in the Policy Sciences Graduate Program , University of Maryland , Baltimore County. PAGE 4 04 Compact City The term compact city can be seen as the opposite of the term urban sprawl. The compact city, is promoted as more energy efficient and less polluting because compact city dwellers can live closer to shops and work and can walk, bike, or take transit. Advocates claim it promotes more community-oriented social patterns (Neuman, 2005). However, preliminary evidence testing the compact city vis-à-vis sustainability suggests that the relation between compactness and sustainability can be negatively correlated, weakly related, or correlated in limited ways (Neuman, 2005). The concept of the compact city was actually inspired by the model of the densely developed core of the traditional European cities. These models are attractions not only to professionals but also to visitors and are seen as perfect places to live the vitality of urban life. The theory of compact city beyond its romantic vision, is to provide a concentration of socially mixed uses that will concentrate the development and will reduce the need to travel. The promotions of public transport, cycling and walking are put forward as solutions. Compaction makes the provision of services easier and thus brings social sustainability. On the other hand, the compact city might become overcrowded and the loss of urban quality might occur. The question of how compact a sustainable city should be is still open (Burton et al, 2003). Further more, can a compact city be an adequate response to urban growth? As Michael Neuman concludes, conceiving the city in terms of form is neither necessary nor sufficient to achieve the goals ascribed to the compact city in terms of sustainability. A (compact) city is much more than a concentration of services and mixed uses. It is the arena where urban life occurs and this content of a city goes far beyond its form. Conceiving the city in terms of process where the content shapes its form, holds more promise in attaining the elusive goal of a sustainable city (Neuman, 2005). References: Neuman, M., (2005) The Compact City Fallacy, Journal of Planning Education and Research, vol. 25 no. 1 11-26 Avaliable: http://jpe.sagepub.com.sid2nomade.upmf-grenoble.fr/content/25/1/11.full.pdf+htm [May 2015]. Burton,E et al., (2003) The Compact City: A Sustainable Urban Form, Rutledge, Sep 2, 2003 Avaliable:https://books.google.com/books?id=7OCRAgAAQBAJ&dq=what+is+a+compact+city&l r=,[May 2015].