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1.
Many Chinese cities are in a transition from industrial to post-industrial urban economies. In this process of urban restructuring, land use becomes polycentric and fragmented. More sophisticated models are needed to estimate the amenity effects of this complex residential environment. This article assesses the relative housing price effects of neighborhood characteristics and accessibility in Nanjing, China. This is achieved with a hedonic price model that incorporates detailed spatial measures, geographical contingency, and a modified version of Alonso’s (1964) general theory of land rent. A crucial finding is that the effect of job accessibility on house price varies depending upon the specific sector of employment. Accessibility to jobs in the public and private service sectors has strong positive effects. However, housing proximity to heavy industries has a spatially nonlinear effect: negative in close proximity, but positive at a larger distance. Second, when we control for job accessibility, access to public transport has an added positive effect. Finally, neighborhood “quality” (defined in terms of nearby amenities) is also relevant, but far less than access to service employment. This research shows that Nanjing’s housing prices are affected by different residential characteristics than those with dominant price effects in Western cities. 相似文献
2.
Large concentrations of employment have developed outside traditional central business districts. Our research focuses on analyzing the changing distribution of employment in metropolitan areas by using tract-to-tract commuting data from Census 2000 to identify high-employment nodes within large metropolitan areas. We propose a new way to delineate clusters of contiguous high-employment tracts based on the job density in these areas. We then compare outlying employment clusters with traditional central business districts and contrast employment clusters of varying job densities. Our method has several advantages over existing methods of identifying employment clusters: it is conceptually simple, can use publicly available data, relies on a standardized geographic unit applicable across the entire United States, and offers the ability to examine data from multiple census years. 相似文献
3.
The typology of the American metropolis: monocentricity,polycentricity, or generalized dispersion? 总被引：1，自引：1，他引：0
Although the spatial structure of employment in large US metropolitan regions is a well-researched topic, few studies focus on medium-sized and small US metropolitan regions. Consequently, there is no overall typology relating small-to-medium urban form to employment distribution. We address this gap by investigating the spatial structure of employment in 356 metropolitan regions. We conceptualize six typologies based on three categories that have overlapping properties: “monocentricity,” “polycentricity,” and “generalized dispersion.” The study has three main findings. First, the three types of urban form that we identify as “hybrid” outnumber the three “pure” types by almost four to one. Second, job dispersion is a dominant characteristic in almost 70% of all metropolitan statistical areas (MSAs) (including the hybrid types), and polycentricity (56.7% of MSAs) is somewhat more common than monocentricity. Third, there is a strong relationship between population size and density. The population of medium-sized metropolitan areas is generally more dispersed than that of small and large metropolitan areas. Polycentricy emerges mostly in large metropolitan regions, while monocentrity is found in both small and large metropolitan regions. 相似文献
4.
We investigate spatial patterns of residential and nonresidential land use for 257 United States metropolitan areas in 1990 and 2000, measured with 14 empirical indices. We find that metropolitan areas became denser during the 1990s but developed in more sprawl-like patterns across all other dimensions, on average. By far, the largest changes in our land use metrics occurred in the realm of employment, which became more prevalent per unit of geographic area, but less spatially concentrated and farther from the historical urban core, on average. Our exploratory factor analyses reveal that four factors summarize land use patterns in both years, and remained relatively stable across the two years: intensity, compactness, mixing, and core-dominance. Mean factor scores vary by metropolitan population, water proximity, type, and Census region. Improved measurement of metropolitan land use patterns can facilitate policy and planning decisions intended to minimize the most egregious aspects of urban sprawl. 相似文献
5.
For a number of social and cultural reasons, labor force participation rates of Australian women are low. One reason not previously investigated is the problem of geographic accessibility to employment, especially for suburban women. Results from journey-to-work studies show that females either work locally or in the central-city area, whereas males travel to more dispersed locations. Further investigation of female travel patterns from each of fifty-five suburban local government areas shows that the socioeconomic status of an area, together with its job mix, explains much variety in female work travel and suggests that workforce participation rates depend in part on local job availability. The research contributes to an understanding of the nature of occupational and geographical disaggregation of the Melbourne metropolitan labor market. 相似文献
6.
In this article, we use local indicators of spatial association (LISA) and other spatial analysis techniques to analyze the distribution of centers with high employment density within metropolitan areas. We examine the 359 metropolitan areas across the United States at three points in time (1990, 2000, and 2010) to provide a spatio-temporal panoramic of urban spatial structure. Our analysis highlights three key findings. (1) The monocentric structure persists in a majority of metropolitan areas: 56.5% in 1990, 64.1% in 2000, and 57.7% in 2010. (2) The pattern of employment centers remains stable for most metropolitan areas: the number of centers remained the same for 74.9% of metropolitan areas between 1990 and 2000 and for 85.2% between 2000 and 2010. (3) Compared with monocentric metropolitan areas, polycentric metros are larger and more dense, with higher per-capita incomes and lower poverty rates. 相似文献
7.
《Urban geography》2013,34(3):223-245
It is now well established in geographic research that women commute shorter distances to work than men. This paper attempts to explore the common features that have emerged from the last two decades of research in various places within a metropolitan context. Three main sets of factors that may cause women to commute shorter distances are recognized: residence, employment, and transportation—each containing both social and spatial aspects. The analysis is centered around the spatial aspect. Most research on employed women seems to be characterized by distinguishing between the central city and the suburbs and thus the conclusions focus mostly upon this. An international comparison of different places shows that gender differences in commuting almost always are greater in the suburbs, from the point of view of both residential and employment dispersions. Directions for future research are suggested. Comparable methodologies will enable the inclusion of additional cities and will broaden the comparison. The examination of gender differences from the perspective of the dispersion of workplaces in metropolitan space should be further developed and analyzed according to a finer spatial scale than that used in looking at the central city vs. the suburbs. It also is suggested that factors of employment and residence should be analyzed differently so that qualitative methods may generate a greater significance for the factors associated with the domestic context. Finally, the investigation of gender differences in commuting and in the location of both residence and employment could lead to consideration of new conceptual frameworks for possible interaction between land used for both purposes within urban space. 相似文献
8.
Exploring urban commuting imbalance by jobs and gender 总被引：1，自引：0，他引：1
Changjoo Kim Sunhee Sang Yongwan Chun Wook Lee 《Applied geography (Sevenoaks, England)》2012,32(2):532-545
Previous findings support that distance matters for job access. Typically, long distances act negatively on job access either due to the lack of information about the opportunities or the cost (time, transportation, etc.). Disparities in job access are explained with the workers’ demographic and socioeconomic characteristics and their spatial condition. Nevertheless, job access was not fully explored in multi-dimensional ways because of data and computational limitations. Recently, the wealth of commuting data, combined with the growing capacity of computation and methodological development, enables us to examine more commuting pattern details than what existing data provide at an aggregate level. This study uses a disaggregate journey-to-work model on 2000 Census Transportation Planning Package (CTPP) commuting data to investigate access to job by gender and occupation, in a more localized context. To explore this varying degree of job access and associated explanation, we analyzed disaggregate commuting flows and ran a regression model on them. This study has three main objectives: (1) to disaggregate journey-to-work flows by gender and occupation to estimate the number of commute trips between census tracts, (2) to explore the variations in job access by gender and occupation, and (3) to draw relationships between job access and various worker’s situations. The results show the details of commuting patterns, suggesting that some occupations have more gender imbalance than others. Further, the findings indicate that the same demographic, socioeconomic and spatial conditions have different effects on workers, and the effect is related to the workers’ demographic-socioeconomic status in complex ways. Unlike conventional research in which a particular worker group is compared to a control group of opposite characteristics, our methodology makes it possible to examine an overview of all the job and gender groups, providing advantages in 2-way comparisons between gender and occupation groups beyond a conventional comparison between two groups. Therefore, our study adds an additional dimension to the conventional comparison. 相似文献
9.
《Urban geography》2013,34(5):406-427
This paper examines how computer services (CS) employment is spatially distributed among United States metropolitan counties in 174 metropolitan statistical areas in 1982 and 1993. The analysis assesses whether multiple counties within major MSAs have significant portions of a region's CS employment, and examines the stability of CS employment as a proportion of core and noncore county employment. CS employment is concentrated in core counties, and mean core county employment shares exceed mean noncore shares. More than 60% of MSA data processing (DP) employment is in core counties. The more counties in an MSA, the more relative CS dispersion to noncore counties. The more noncore counties, the smaller the average share of CS employment. Mean noncore CS shares are low and changed little from 1982 to 1993. The pattern is core county CS control. Programming employment has dispersed to noncore counties, but in small shares. Mean DP concentration in core counties exceeds that of programming and maintenance employment. Many noncore counties still have no DP or maintenance employment at all. [Key words: computer services (CS), metropolitan development, centralization, urban employment.] 相似文献
10.
《Urban geography》2013,34(3):253-271
This research proposes two indexes, job proximity and accessibility, to measure workers' location advantage by residences with respect to their job markets. Job proximity is designed to capture the spatial separation between residents and jobs. Job accessibility measures one's ability to overcome such separation as may be affected by transportation means, road network, congestion, and intensity of competition for jobs among workers. The research compares the two measures among workers of various wage levels in an attempt to reveal who has the greatest advantage in job access and whether job access is a spatial or nonspatial issue. In Cleveland in 1990, the mean wage rate of 30,000 was a critical turning point: below this level, the higher the mean wage rate in a residential area, the farther the area was away from jobs; above this level, the trend is reversed. In other words, below a wage threshold, workers tend to trade better and more spacious housing (usually farther away from jobs) for more commuting; but above the threshold, workers retreat for saving in commuting (pertaining to their high opportunity cost of commuting). Although low-wage workers enjoy better job proximity, many of them (particularly some inner-city residents) have the worst job accessibility because of their limited transport mobility as indicated by a low level of automobile ownership. Job proximity declines with distance from the CBD and conforms to the monocentric model, as does job accessibility but to a less degree. Since workers with various wages respond differently to job access, the distribution of mean wage rates in the metropolitan area is hardly monocentric. 相似文献
11.
There is an increasing need for a quick, simple method to represent diurnal population change in metropolitan areas for effective emergency management and risk analysis. Many geographic studies rely on decennial U.S. Census data that assume that urban populations are static in space and time. This has obvious limitations in the context of dynamic geographic problems. The U.S. Department of Transportation publishes population data at the transportation analysis zone level in fifteen-minute increments. This level of spatial and temporal detail allows for improved dynamic population modeling. This article presents a methodology for visualizing and analyzing diurnal population change for metropolitan areas based on this readily available data. Areal interpolation within a geographic information system is used to create twenty-four (one per hour) population surfaces for the larger metropolitan area of Salt Lake County, Utah. The resulting surfaces represent diurnal population change for an average workday and are easily combined to produce an animation that illustrates population dynamics throughout the day. A case study of using the method to visualize population distributions in an emergency management context is provided using two scenarios: a chemical release and a dirty bomb in Salt Lake County. This methodology can be used to address a wide variety of problems in emergency management. 相似文献
12.
Thomas J. Cooke 《The Professional geographer》1996,48(4):458-467
This research tests the spatial mismatch hypothesis by comparing the employment probabilities of central city versus suburban African American males in nine metropolitan areas. Treatment effects models are used to control for the effects of both individual characteristics and residential self-selection on the probability of employment. A positive effect of suburban residential location on employment is found for the residents of Dallas, Los Angeles, New York, and Washington, while no effect is found for the residents of Cleveland, Houston. Jackson, Memphis, and Newark. The general conclusion to be drawn is that the spatial mismatch effect is contingent on the particular characteristics of each metropolitan area. Preliminary analysis shows that metropolitan areas with a spatial mismatch effect are large in terms of total population and total land area, and have less efficient transportation systems. 相似文献
13.
The campaign to promote the networking of America underscores the importance of information infrastructures that can support regional competitiveness. One crucial element of a regional information infrastructure is a computer services (CS) industry that supports computer systems, provides backward and forward linkages among all sectors of the economy, serves as engines for economic growth, enhances production efficiency, and encourages innovation. But research on metropolitan CS has been limited, and where CS are analyzed directly, spatial units of analysis vary and CS are rarely disaggregated. This paper situates CS employment within spatial analyses of producer services, outlines infrastructural characteristics, analyzes CS distribution across metropolitan areas in 1982 and 1993, and considers the implications of the findings. The data suggest that while large metropolitan areas are most likely to have a diverse base of specializations in multiple CS types, many smaller metropolitan areas possess CS specializations. We conclude that ranking in the urban CS hierarchy is more likely to be a function of local economic structure than metropolitan population. The uneven dispersion of CS capacity across metropolitan areas potentially has negative ramifications for implementation of national policy and development of underserved regional economies. 相似文献
14.
北京公交就业可达性及其地区和人群差异 总被引：2，自引：0，他引：2
运用经济普查、人口普查数据和基于百度地图的公交出行时间数据,分析北京都市区基于公共交通的就业可达性及其在城市不同人群和地区间的差异。结果表明：北京都市区的居民可在60分钟内通过公共交通到达18.3%的都市区工作岗位,这比美国100个最大的都市区的平均就业可达性水平要高,接近于美国纽约都市区的就业可达性水平。同时,由于就业郊区化程度有限和以中心—放射式布局的公交网络,北京都市区内的公交就业可达性存在着巨大的区域差异,中心城区的就业可达性远远高于郊区。此外,人口居住的郊区化程度远远高于就业的郊区化程度,导致北京都市区宏观层面的职住不平衡。随着人口居住郊区化程度的提高,公共交通如何服务居住日益分散的人口,提高就业可达性,是一项巨大的挑战。研究还发现,由于城市中心区的大部分就业为高技术的就业岗位,因此高受教育程度人口能更多地享受目前公共交通系统的便利,而受教育程度低的人口和外来人口公交就业可达性较低。为解决弱势群体所面临的就业可达性的不平等问题,需要更多的规划与政策干预。 相似文献
15.
Steven R. Holloway 《The Professional geographer》1996,48(4):445-458
The spatial mismatch hypothesis, which argues that job decentralization has had a major impact on the economic fortunes of inner-city minorities, has been a popular argument in academic and policy circles. It is possible, however, that employment decentralization was a temporary shock to inner-city labor markets and that labor supply has successfully adjusted by residential relocation and alterations in job search patterns. This paper examines this issue with an empirical analysis of the 1980 and 1990 employment probabilities of black and white male teenagers living in the largest metropolitan areas of the United States. Findings indicate that the impact of job accessibility on employment probabilities declined between 1980 and 1990, especially for black male teenagers not enrolled in school. Accessibility had a declining effect for this group because of losing the advantage of accessibility rather than overcoming the disadvantage of inaccessibility. By 1990, black male teens living in job-accessible areas no longer enjoyed as much of an employment advantage relative to teens living in job-inaccessible areas as they did in 1980. We should thus be cautious about ascribing too much theoretical or policy importance to job accessibility factors. 相似文献
16.
《Urban geography》2013,34(4):330-359
The question of how home and workplace are linked through commuting is at the heart of much recent work on metropolitan areas. However, the emphasis tends to be either on spatial-economic models or on the impact of empirically measured individual, household, neighborhood, and transport mode characteristics; relatively little work has focused on job characteristics and place of employment as they relate to travel to work. In this article, I investigate whether people travel different distances to access different types of job location, with particular attention to the different distances traveled by men and women. My points of reference are the major employment centers (poles) in the Montreal region. After controlling for a wide range of explanations that may account for different travel distances, I conclude that differences in commuting length between different places of work are, by and large, independent of possible explanatory factors such as residential location, economic sector, occupation, income, and participation in household earnings—some places of work generate longer commutes than others. Men and women behave differently in relation to these places: women will travel farther to access jobs in centers whereas men will not; and despite their shorter average overall commutes, women travel farther than men to reach jobs in the CBD. This suggests, at the metropolitan scale, that each job location may have its own local culture or "milieu," and that men and women react differently to them. 相似文献
17.
《The Professional geographer》2013,65(4):458-466
This research tests the spatial mismatch hypothesis by comparing the employment probabilities of central city versus suburban African American males in nine metropolitan areas. Treatment effects models are used to control for the effects of both individual characteristics and residential self-selection on the probability of employment. A positive effect of suburban residential location on employment is found for the residents of Dallas, Los Angeles, New York, and Washington, while no effect is found for the residents of Cleveland, Houston. Jackson, Memphis, and Newark. The general conclusion to be drawn is that the spatial mismatch effect is contingent on the particular characteristics of each metropolitan area. Preliminary analysis shows that metropolitan areas with a spatial mismatch effect are large in terms of total population and total land area, and have less efficient transportation systems. 相似文献
18.
A relative spatial access assessment approach for analyzing potential spatial access to colorectal cancer services in Texas 总被引：3，自引：0，他引：3
Neng WanF. Benjamin Zhan Bin Zou Edwin Chow 《Applied geography (Sevenoaks, England)》2012,32(2):291-299
The usefulness of gravity-based spatial access models is limited because of the uncertainty introduced by the range of values of the impedance coefficient. To solve this problem, this paper proposes the concept of spatial access ratio (SPAR) derived from the enhanced 2-step floating catchment area (E2SFCA) method — a recent extension of the gravity model — to assess potential spatial access. First, a sensitivity assessment is conducted to verify the effectiveness of SPAR and its advantages in overcoming the uncertainty problem. Then, the E2SFCA method and the shortest travel time method are employed to measure potential spatial access to colorectal cancer (CRC) prevention and treatment services in Texas based on data at the census tract level. The socio-demographic and geographic distributions of potential spatial access to CRC services are also examined. The sensitivity assessment reveals substantial fluctuations in the values of the spatial access index calculated directly by the E2SFCA method under different values of the impedance coefficient. However, the values of SPAR remain stable under different values of the coefficient. A comparative analysis indicates that potential spatial access to primary care physicians (PCPs), CRC screening facilities, and oncologists varied among different racial/ethnic and socioeconomic population groups as well as in different geographic regions in Texas. Non-Hispanic blacks, Asians, and people in affluent areas had a geographical advantage in accessing CRC services than other groups. The urban/rural difference was more obvious and serious than those of different racial/ethnic groups and groups with different socio-economic statuses, as metropolitan residents had more than three times the potential spatial access than isolated rural residents. 相似文献
19.
《Urban geography》2013,34(3):230-256
The relationship between inner-city gentrification and the restructuring of metropolitan economies toward employment in the advanced services is well established. In this context, the paper examines the effects of the 1982-1983 recession, the deepest in Canada in 50 years, upon the incidence of gentrification in six major Canadian cities. Contrary to expectation, the rate of gentrification through the 1981-1986 period accelerated over the rate through the economically more buoyant years of the 1970s, although regional variations were more pronounced. This finding is explained by the more resilient metropolitan labor market in advanced services, even in times of national recession. A second objective of the paper is to examine the spatial patterning of gentrification within the six inner cities. Census tracts that underwent social upgrading during 1981-1986 are far more diverse than the more conservative pattern of the 1970s, where upgrading expanded wave-like from established middle class areas in the inner city. Neighborhood attributes that were effective predictors of gentrification in the 1970s are far less significant in the 1980s. The geography of gentrification has become more complex because, as a social process, it has become more chaotic. The overall effect, however, is that in Canadian cities with rapidly growing employment in the advanced services there are relatively few areas of private housing in the inner city that are likely to be immune from the impact of gentrification in the future. 相似文献
20.
This research explores the factors that shape the evolving geographic distribution of business headquarters (HQ) activity. We address an understudied influence on HQ geographies: metropolitan HQ changes driven by the process of small, rapidly expanding businesses growing into mature companies. This investigation focuses on the developmental paths followed by fast-growing firms (FGFs) and the geographic distinctions that can be observed in a FGF tracking study of Canada’s metropolitan regions from 1987 to 2005. Our research findings indicate that geography plays an important role in this development, as FGF tracking records throughout Canada’s metropolitan areas diverge sharply. We find that most FGFs that emerged in Vancouver and Toronto continued as ongoing businesses following their rapid growth phase, while a high proportion of FGFs based in Montréal and Calgary did not. These results contribute to a greater understanding of metropolitan economies, business development, and HQ location in Canada 相似文献