Hillier, Amy
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Disciplines
Mental and Social Health
Urban Studies and Planning
Urban, Community and Regional Planning
Urban Studies and Planning
Urban, Community and Regional Planning
Research Projects
Organizational Units
Position
Assistant Professor of City & Regional Planning
Introduction
My research focuses on geographic disparities, particularly racial disparities in housing and public health. Much of my research uses Geographic Information Systems (GIS) to analyze spatial patterns.
Research Interests
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Now showing 1 - 10 of 17
Publication Redlining and the Homeowners' Loan Corporation(2003-05-01) Hillier, Amy EThis article analyzes the impact of the residential security maps created by the Home Owners’Loan Corporation (HOLC) during the 1930s on residential mortgages in Philadelphia. Researchers have consistently argued that HOLC caused redlining and disinvestment in U.S. cities by sharing its color-coded maps. Geographic information systems and spatial statistical models were used to analyze address-level mortgage data from Philadelphia to determine if areas with worse grades actually had less access to residential mortgage credit as a result. Findings indicate that the grades on HOLC’s map do not explain differences in lending patterns with the exception of interest rates, which were higher in areas colored red. Archival material and journal articles from the 1930s also reveal that lenders were avoiding areas colored red before HOLC made its maps, that HOLC’s maps were not widely distributed, and that lenders had other sources of information about real estate risk levels.Publication PhillydotMap: The Shape of Philadelphia(2009-10-01) Branas, Charles; Davitt, Joan K; Hillier, Amy; Cheetham, Robert; Cheetham-Richard, Rachel; Cohen, Rachel B; Decker, Joan; Heckert, Megan; Steinberg, Harris; Sullivan-Marx, Eileen; Hutchins, Jason; Tomlin, C. Dana; Kerman, Lucy; Volpe, Stella; Lechner, Zachary L; Wiebe, Douglas; McLarnon, Michael; Newlin, Heather; Scholssberg, Dina; Wormley, Diane-LouiseThis book is the outgrowth of a working group entitled, “Modeling Urban Environmental Impacts on Health, Development, and Behavior" sponsored by the University of Pennsylvania Institute for Urban Research. The purpose of the working gropu was to engage faculty from across campus and to encourage their collaborative use of GIS technology in the modeling of urban form and function. These ten chapters represent a wide range of GIS applications, from community-based social services to public history to social science research.Publication Removing Barriers to the Use of Community Information Systems(2005-01-01) Hillier, Amy E; Wernecke, Mary L; McKelvey, HeatherCommunity information systems (CINS) are emerging as important tools for community, government, and educational organizations. This paper considers the training, evaluation, and outreach efforts relating to the Philadelphia Neighborhood Information System (NIS), a collection of online applications that integrate and distribute housing and demographic data. It presents an overview of the types of NIS users and uses and some specific examples of how the NIS is being used for individual property inquiries, community surveys, needs assessments, and research. Finally, the paper discusses the barriers to more analytical uses and offers recommendations for social work education aimed at preparing social workers to support community organizations in their efforts to harness the potential of CINS for social change.Publication Closing the Gap: Housing (un)Affordability in Philadelphia(2003-03-01) Hillier, Amy E; Culhane, Dennis P.Publication Spatial Analysis of Historical Redlining: A Methodological Explanation(2003-01-01) Hillier, Amy EDespite widespread belief that redlining contributed to disinvestment in cities, there has been little empirical analysis of historical lending patterns. The lack of appropriate data and clear definitions of redlining has contributed to this void. This article reviews definitions and methods that have emerged from research on lending in recent years and considers how they can be applied to research on historical redlining. Address-level mortgage data from Philadelphia from the 1940s are analyzed using spatial regression, “hot spot” analysis, and surface interpolation. Employing multiple definitions of redlining that focus on process and outcome, as well as spatial and statistical relationships in lending, the analyses result in a series of map layers that indicate where redlining may have occurred. In addition to providing some evidence of lending discrimination, this article promotes an explicitly spatial view of redlining that has conceptual and methodological implications for research on contemporary and historical redlining.Publication Evaluating a Community Based Homelessness Prevention Program: A Geographic Information System Approach(2001-01-01) Wong, Yin-Ling I; Hillier, Amy EThis article introduces and illustrates the application of Geographic Information System technology to examine patterns of social-services use in community-based interventions. By integrating management information system data from human service agencies and publicly accessible data from the U.S. Census within a specially-referenced framework, the study illustrates that GIS analysis could help managers and planners of social services to assess the extent to which program implementation reflects adherence to a program concept and identify geographical areas with the greatest unmet service needs. The article demonstrates the application of GIS technology, based on an analysis of a city-wide community-based homelessness prevention program in Philadelphia.Publication WEB Du Bois and the "Negro Problem": Thoughts on Violence in Philadelphia(2007-07-22) Hillier, AmyThis sermon, delivered at First Unitarian Church of Philadelphia, might also be called "Why a white girl from New Hampshire is studying The Philadelphia Negro." This essay/sermon connects Du Bois's 1896 survey of Philadelphia to the violence currently plaguing Philadelphia.Publication Integrating and Distributing Administrative Data to Support Community Change(2005-01-01) Hillier, Amy E; Culhane, Dennis P.An increasing number of groups are demanding access to information about the physical, economic, and social conditions in their communities. In addition to researchers, community development corporations, neighborhood associations, social service agencies, and municipal agencies all are becoming consumers of quantitative data. More powerful desktop computers, sophisticated data management software, enormous data storage devices, and expanding Internet access have increased exponentially the capacity of even small organizations to handle large amounts of data. However, none of these advances guarantees that organization staff will be able to make sense of these mountains of data. Perhaps more important, the advances do not enhance access to the most useful types of data that frequently reside behind municipal agency firewalls and layers of bureaucratic red tape. The growing demand for small-area administrative data in useful formats makes essential the development of new tools to support a wide range of community change efforts.Publication Help in Time: An Evaluation of Philadelphia's Community-Based Homelessness Prevention Program(1999-12-01) Wong, Yin-Ling I; Culhane, Dennis P; Metraux, Stephen; Koppel, Meg; Hillier, Amy; Eldridge, David E; Lee, Helen RThis report provides an evaluation of Philadelphia's neighborhood-based homelessness prevention initiative. Results indicate that nearly all households served do not become homeless. But it is unclear if households would have become homeless had they not been served. Recommendations are made for targeting prevention interventions to families requesting shelter.Publication Why Social Work Needs Mapping(2007-07-01) Hillier, Amy ERelative to other fields, social work has been slow to adopt geographic information systems (GIS) as a tool for research and practice. This paper argues that GIS can benefit social work by: (1) continuing and strengthening the social survey tradition; (2) providing a framework for understanding human behavior; (3) identifying community needs and assets; (4) improving the delivery of social services; and (5) empowering communities and traditionally disenfranchised groups. Examples from a social work course on GIS and published social work research help illustrate these points. The paper concludes by considering the ways that social work can contribute to the development of GIS.