Sydney's Ethnic Geography: New approaches to analysing patterns of residential concentration

Most studies of ethnic residential segregation in Australian cities have used single-measure indices of dissimilarity and segregation, which access the degree of unevenness between two maps. Segregation is a multi-dimensional concept, however, and in this paper we introduce an alternative way of measuring residential concentration which incorporates several of the key dimensions. The procedure is illustrated using birthplace and language-used-at-home data for collection districts in metropolitan Sydney in 1996. Results show no evidence of extreme spatial concentration of ethnic groups.     

Unraveling the multi-scalar residential segregation and socio-spatial differentiation in China: A comparative study based on Nanjing and Hangzhou

Residential segregation is a dual process of socio-spatial differentiation in residents and spatio-temporal heterogeneity in dwelling.However,most of the existing studies are es-tablished from the single perspective of urban residents based on demographic data,which is difficult to reveal the dynamics and complex spatial reconstruction within and between cities.With the characteristics of both stability and timeliness,the rapidly changing housing market is one of the processes and results of socio-spatial reconfiguration,and it is undoubtedly a better lens to observe residential segregation.This paper adopts methods such as multi-group segregation index,multi-scalar segregation profiles,and decomposition of segregation index,with Nanjing and Hangzhou as case cities,and establishes multi-scalar segregation profiles and comparative models based on three geographical scales of census tract,block and grid,and different residential types.A quantitative study was conducted on the degree and pattern of multi-scalar residential segregation in Nanjing and Hangzhou from 2009 to 2018.The pa-per found that the spatial segregation index is an improvement of the non-spatial segregation index.There are differences between Nanjing and Hangzhou in the evolution process of residential segregation.Nanjing has a higher degree of spatial differentiation as a whole,among which spatial components have a more significant impact.     

The residential segregation of San Antonio,Texas in 1910: an analysis of ethno-racial and occupational spatial patterns with the colocation quotient

The segregation of cities can be traced to a time when the compartmentalization of space and people was based on factors other than race. In segregation research, one of the limiting factors has always been the geographic scale of the data, and the limited knowledge that exists of segregation patterns when the household is the unit of analysis. Historical census data provides the opportunity to analyze the disaggregated information, and this paper does so with San Antonio during 1910. A spatial analysis of residential segregation based on race, ethnicity, and occupations is carried out with the colocation quotient to map and measure the attraction of residents. Results reveal the presence of residential segregation patterns on different sectors of the city based on households’ ethno-racial and occupational attributes; therefore, providing evidence of the existence of residential segregation prior to the commonly cited determinants of segregation of the 20th century.     

Where immigrants live: capturing ethnic segregation at the local level in two Australian cities

Although the consequences of residential segregation are well documented, few studies to date have examined patterns of residential segregation at the local level in Australia. While available research indicates relatively low levels of residential segregation in Australia compared to other contexts, the traditional measures of segregation commonly utilised tend to be aspatial and global in nature and, as such, offer limited insight into local segregation trends. Considering these shortcomings, this paper employs two highly spatialised yet under-utilised local segregation measures—Location Quotients and Local Moran’s I. Using these measures, this paper explores how various immigrant groups are spatially distributed across two Australian cities with differing immigration histories—Sydney an established immigrant gateway and Brisbane a relatively new immigrant destination. Additionally, this article examines whether or not immigrant neighbourhoods in each city are co-located or isolated. Contrary to expectations that Australian neighbourhoods are multicultural, these findings demonstrate clear differences in the neighbourhoods where immigrant groups settle.     

A comparative approach towards ethnic segregation patterns in Belgian cities using multiscalar individualized neighborhoods

Levels of spatial segregation in Western European cities are persistent over space and time. To demonstrate the degree or appearance of spatial segregation, most studies on urban residential patterns still rely on fixed spatial units, aspatial measures and single scales. However, a spatial or temporal comparison of patterns and levels of segregation based on such units or metrics is not without problems. To that end, this paper takes an explicit geographic approach and considers individualized neighborhoods using EquiPop-software, allowing various scales. Using the k-nearest neighbors for all individuals increases international comparability and facilitates interpretation, so far often hampered in segregation research. This multiscalar, multigroup comparative approach on ethnic urban geographies – using Belgium as a case study – provides an empirical illustration of a valuable method and tool applicable in segregation research, thereby furthering the comprehension of the increasingly diverse urban geographies and building on emerging work in the US, Europe and beyond.     

And Did the Walls Come Tumbling Down? Ethnic Residential Segregation in Four U.S. Metropolitan Areas 1980-2000

The initial releases of data from the 2000 U.S. Census allow exploration of the extent of change, if any, in residential segregation in four major cities, where substantial population growth has continued to generate increased ethnic diversity. Using a recently established method of classifying residential areas according to their ethnic composition which facilitates comparative study over time and space, this paper examines segregation trends in Chicago, Los Angeles, New York, and Miami over the period 1980-2000 in the context of recent discussions of the nature of residential patterns there. It finds that though there has been some reduction in the extent of extreme segregation areas that are predominantly either White or African American with consequent greater ethnic mixing at the census tract level, nevertheless cores of extreme segregation remain, and these are being extended with greater segregation of the Hispanic population. Ethnic residential segregation in United States' metropolitan areas attracted much research throughout the 20th century, with each census providing new impetus for mapping and analysis. The 2000 census will be no exception, providing data with which the extent of change can be assessed after a further decade in which discrimination on the grounds of race and color was illegal. This paper provides an initial exploration for four metropolitan areas that have experienced substantial recent multi-ethnic in-migration. Using a method for classifying residential areas designed to facilitate comparative studies over space and time, it explores the extent of desegregation during the previous 20 years for each of the four main census ethnic groups.     

The influence of housing oversupply on residential segregation: exploring the post-socialist city of Leipzig†

In this article, we contribute to a better understanding of contextual differences related to residential segregation. We illuminate one specific contextual factor—housing oversupply—and how it intersects with historically inherited patterns of socio-spatial differentiation and other drivers of residential segregation. The study is based on an analysis of how segregation has developed over the last 20 years in the city of Leipzig, Germany. This case offers the rare possibility of studying the impact of city-wide housing oversupply on residential segregation, rather than concentrating on decline or decay in specific areas. We examine how oversupply emerged at the meeting point of changes in market structures, housing preferences, welfare state interventions, and migration trends in the post-socialist transition. Using existing statistical data, we demonstrate how oversupply has fostered a fast and thorough reshuffling of residential patterns. After a period of resolving segregation patterns from the socialist era, oversupply acts as a catalyst for recently emerging residential segregation patterns.     

RESIDENTIAL SEGREGATION BY SOCIOECONOMIC CLASS IN METROPOLITAN MIAMI: 1990

This paper investigates the proposition that socioeconomic status explains a significant amount of the residential segregation between Hispanics, non-Hispanic Whites, non-Hispanic Blacks, and non-Hispanic others (mainly Asians) in metropolitan Miami. First, we test to determine if there is significant segregation within each of the four ethnic groups and we find that there is, except for Blacks. Although the index of dissimilarity suggests that there is segregation by socioeconomic status within Miami's Black population, map analysis reveals that this is not the case. Furthermore, we find that socioeconomic status is not an important factor explaining metropolitan Miami's segregation patterns between these four ethnic groups. When it comes to residential segregation, Miami is similar to most other American cities. This is a significant finding because several recent studies have suggested that standard assimilation theory does not apply to Miami, and segregation is one aspect of assimilation.     

宁杭城市多时空尺度居住空间分异与比较

城市居住分异具有社会群体与住宅空间的社会—空间双重属性,已有研究多关注社会经济属性,采用非空间分异指数开展单个城市和较大尺度的实证分析,较难有效反映中国当前城市内部日趋复杂多变、异质破碎的居住分异景观。基于住宅空间视角,采用多群体分异指数、空间分异曲线、指数分解模型与地理探测器等方法,以南京、杭州为案例城市,从街道、街区与网格3个尺度,分析宁杭2009—2018年居住空间分异及其影响因素。研究表明：空间分异指数因考虑到住宅空间位置和邻域环境,可作为对非空间分异指数的一种改进;南京不同住宅类型空间分异程度高于杭州,主要是由城市空间结构差异造成的;居住空间分异是城市社会空间资源非均衡配置的结果,其中“中心位势”和“教育配套”等因素对城市居住空间分异的影响最为显著;宁杭城市居住空间分异的共性与特性并存,揭示出城市比较研究的可行性与必要性。通过创新性探索,为中国城市居住分异研究提供新视角、新方法和新思维。     

Latent sprawl,divided Mediterranean landscapes: urban growth,swimming pools,and the socio-spatial structure of Athens,Greece

Although Mediterranean cities have inherent differences on a local scale, together they offer a kaleidoscopic overview of distinctive morphologies and patterns of socio-spatial segregation. In this study, we explore the distribution of residential swimming pools as indicators of the use of land and water at the metropolitan scale, in relation to recent changes in the socio-spatial structure of a large Mediterranean city (Athens, Greece). Our results indicate a polarized spatial distribution of swimming pools, still considered a luxury affordable only for a minor segment of the Greek population. The analysis highlights the spatial linkages between concentration of residential pools, class segregation and low-density settlements, indicating that the socio-spatial structure of Athens remains characterized by persistent disparities between rich and poor neighborhoods. Comparison with another Mediterranean city (Barcelona) demonstrates the peculiarity of Athens’ recent development as reflected in the fragmented and polarized urban structure. The study provides an alternative reading of recent Mediterranean urban growth by considering pools as a “landmark” for urban sprawl, producing contested landscapes of localized social segregation.     

Changing patterns of residential and workplace segregation in the Stockholm metropolitan area

Immigrant–native segregation is present in the spaces in which individuals from different ethnic/racial groups practice their everyday lives; interact with others and develop their ethnic, social and spatial networks. The overwhelming majority of academic research on immigrant segregation has focused on the residential domain, thus largely overlooking other arenas of daily interaction. The present study contributes to the emerging literature on immigrant residential and workplace segregation by examining changes in patterns of residential and workplace segregation over time. We draw our data from the Stockholm metropolitan region, Sweden’s main port of entry for immigrants. The results suggest a close association between residential and workplace segregation. Immigrant groups that are more segregated at home are also more segregated in workplace neighborhoods. More importantly, we found that a changing segregation level in one domain tends to involve a similar trend in the other domain.     

Rethinking “Diversity” Through Analyzing Residential Segregation Among Hispanics in Phoenix,Miami, and Chicago

Hispanics are an internally diverse population, yet residential segregation within census-defined groups is often overlooked. Census data are used to examine evenness and exposure segregation among Hispanics in Chicago, Miami, and Phoenix along the lines of national origin, race, year of arrival, and income. Results suggest that segregation exists in Miami where there is more national origin diversity, between white and black Hispanics in Chicago, in all three cities for foreign-born Hispanic recent arrivals, and especially between high- and low-income Hispanics. Attempts to theorize immigration, social capital and solidarity, and the future of democratic society have inadequately conceptualized “diversity”; our work critically employs quantitative analysis to suggest an enriched and more nuanced socio-spatial understanding of the term.     

Spatial Modelling in Forest Ecology and Management: A Case Study. Edited by M. JANSEN,M. JUDAS and J. SABOROWSKI (Berlin: Springer Verlag, 2002). [Pp. xiii+225]. ISBN 3-540-43357-0. Price €89.95. Hardback

Urban segregation has received increasing attention in the literature due to the negative impacts that it has on urban populations. Indices of urban segregation are useful instruments for understanding the problem as well as for setting up public policies. The usefulness of spatial segregation indices depends on their ability to account for the spatial arrangement of population and to show how segregation varies across the city. This paper proposes global spatial indices of segregation that capture interaction among population groups at different scales. We also decompose the global indices to obtain local spatial indices of segregation, which enable visualization and exploration of segregation patterns. We propose the use of statistical tests to determine the significance of the indices. The proposed indices are illustrated using an artificial dataset and a case study of socio‐economic segregation in São José dos Campos (SP, Brazil).     

APARTHEID WITHIN APARTHEID: AN ASSESSMENT OF OFFICIAL INTRA-BLACK SEGREGATION ON THE WITWATERSRAND,SOUTH AFRICA

Apartheid in South Africa operates at several levels, notably in the policies of state partition and urban residential segregation. The Black population of South African cities resides in racially exclusive townships where the various linguistic groupings are further separated as part of the apartheid policy of state partition. The extent to which linguistic segregation has been enforced in the complex Witwatersrand townships is measured in this paper. The policy has been less effective than other forms of urban segregation, suggesting constraints by the inherited township structures and management problems.     

Fragmented Urban Spaces? Ethnic Residential Areas in New Zealand Cities, 1996

Residential segregation of ethnic groups is a major feature of cities in multi‐cultural societies such as New Zealand's. Measuring the degree of segregation has been the focus of much attention over the last half century, but there are difficulties with comparative studies using most of the measures adopted. An alternative procedure which classifies residential areas according to a homogeneity‐heterogeneity continuum is applied here to 1996 census small‐scale data for each of New Zealand's 33 main urban areas, to identify the degree of segregation of various ethnic groups. It reports that most New Zealanders from all ethnic groups (defined by self‐identity) live in mixed rather than exclusive residential areas. The main ethnic enclaves/ghettos are occupied by Maori and Pacific Islanders, and are entirely concentrated in the North Island, especially in urban areas which have substantial Polynesian populations.     

THE EMERGENCE OF AFFLUENCE IN BEIJING: RESIDENTIAL SOCIAL STRATIFICATION IN CHINA'S CAPITAL CITY

Since 1987, the Chinese government has begun to liberalize its approach to land markets, allowing for the development of commercial residential housing and sparking greater distinctions in housing quality. At the same time, there have been growing income differentials among Beijing's residents. This paper discusses how Beijing's new urban affluent have begun to take advantage of greater housing choices. It reports on a survey conducted in 1997 that uncovers the occupational characteristics, consumption patterns, housing characteristics, and residential locations of affluent residents. The results indicate that Beijing's new urban affluent are beginning to share some of the consumption features of middle-class Westerners. At the same time, social segregation is still nascent in Beijing. There is now only a sprinkling of affluent neighborhoods in the city, and a slight majority of wealthier respondents continue to live in public housing. Moreover, few are able to afford detached single-family housing or a private automobile. The continuation of current trends could both deepen and broaden social segregation in Beijing, as class divisions come to be manifested in separate neighborhoods. [Key words: socialist cities, affluence, Beijing, housing, social stratification.]     

APARTHEID WITHIN APARTHEID: AN ASSESSMENT OF OFFICIAL INTRA-BLACK SEGREGATION ON THE WITWATERSRAND,SOUTH AFRICA

Apartheid in South Africa operates at several levels, notably in the policies of state partition and urban residential segregation. The Black population of South African cities resides in racially exclusive townships where the various linguistic groupings are further separated as part of the apartheid policy of state partition. The extent to which linguistic segregation has been enforced in the complex Witwatersrand townships is measured in this paper. The policy has been less effective than other forms of urban segregation, suggesting constraints by the inherited township structures and management problems.     

基于全国第六次人口普查数据的广州新移民居住分异研究

运用第六次全国人口普查数据,分析当前广州新移民的居住空间分异问题,探讨中国大城市新移民居住空间的整体格局、分异程度及其分异机制,并以此实证中国城市社会空间理论。研究表明：广州新移民的空间分布总体上表现出近郊集中和远郊分散的特征,其中省内新移民较多集中在中心区外围,省外新移民集中分散在远郊。广州新移民与本地常住人口的差异指数为0.48,分异指数为0.46,隔离指数为0.56,超过美国亚裔移民分异的平均水平。此外,各区的分异度水平存在较大差异。机制分析表明,历经30多年的市场化进程,制度因素对新移民聚居区的影响减弱,单位因素对新移民聚居无明显影响,市场因素的作用增强。与西方情况类似,人口和家庭因素对新移民聚居有一定影响,其中年龄因素和婚姻状况是影响新移民聚居的重要因素。总体上,市场化下中国城市新移民的社会隔离正不断转化为明显的空间分异问题。为推进社会融合,应尽快采取社会空间重构措施(如社会规划和社区规划)予以应对。