2026-09-21T16:42:20Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/597502022-01-13T07:54:44Zcom_1721.1_7582com_1721.1_7581col_1721.1_131023
Judith A. Layzer.
Madden, Sarah (Sarah Anne)
Massachusetts Institute of Technology. Dept. of Urban Studies and Planning.
Massachusetts Institute of Technology. Department of Urban Studies and Planning
n-us-pa
2010-10-29T18:30:33Z
2010-10-29T18:30:33Z
2010
2010
http://hdl.handle.net/1721.1/59750
670433292
Thesis (M.C.P.)--Massachusetts Institute of Technology, Dept. of Urban Studies and Planning, 2010.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 44-49).
All modem cities-characterized by paved roads, rooftops, parking lots, and impacted soils-have serious problems with stormwater, and those problems are only growing as urbanization proceeds and climate change causes more severe weather events. Historically, cities have used gray infrastructure to manage stormwater; this is not only costly but causes an array of environmental problems. Proponents have long advocated using a green infrastructure approach, which has numerous advantages over traditional gray infrastructure systems. Nevertheless, very few U.S. cities have invested in green infrastructure on a significant scale. The question, then, is why have cities resisted adopting green infrastructure, and what would it take for them to choose a landscape-based approach to stormwater management over a conventional engineering solution? To answer this question, I studied a city that recently decided to embrace green infrastructure in a big way: Philadelphia. I argue that (i) new stormwater regulations and the 1990 withdrawal of federal funding changed the constraints and incentives for the city to make green infrastructure viable, particularly for a cash-strapped city; (2) a policy entrepreneur in the Philadelphia Water Department did two key things in preparation for a future policy window: he created an office organized around watersheds, and began redefining the problem; and (3) the policy entrepreneur capitalized on a regulatory policy window, the Combined Sewer Overflow Long Term Control Plan Update, that garnered momentum from the city's decision to "re-brand" itself as a green city and galvanized support for the $1.6 billion plan for green infrastructure across the city. These conclusions are supported by evidence from Philadelphia's decision to adopt a green infrastructure approach to manage runoff. Finally, I discuss the implications of these findings and make recommendations for the implementation of the plan.
by Sarah Madden.
M.C.P.
49 p.
eng
Massachusetts Institute of Technology
M.I.T. theses are protected by
copyright. They may be viewed from this source for any purpose, but
reproduction or distribution in any format is prohibited without written
permission. See provided URL for inquiries about permission.
http://dspace.mit.edu/handle/1721.1/7582
Urban Studies and Planning.
Choosing green over gray : Philadelphia's innovative stormwater infrastructure plan
Philadelphia's innovative stormwater infrastructure plan
Thesis
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Publication
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<Abstract>All modem cities-characterized by paved roads, rooftops, parking lots, and impacted soils-have serious problems with stormwater, and those problems are only growing as urbanization proceeds and climate change causes more severe weather events. Historically, cities have used gray infrastructure to manage stormwater; this is not only costly but causes an array of environmental problems. Proponents have long advocated using a green infrastructure approach, which has numerous advantages over traditional gray infrastructure systems. Nevertheless, very few U.S. cities have invested in green infrastructure on a significant scale. The question, then, is why have cities resisted adopting green infrastructure, and what would it take for them to choose a landscape-based approach to stormwater management over a conventional engineering solution? To answer this question, I studied a city that recently decided to embrace green infrastructure in a big way: Philadelphia. I argue that (i) new stormwater regulations and the 1990 withdrawal of federal funding changed the constraints and incentives for the city to make green infrastructure viable, particularly for a cash-strapped city; (2) a policy entrepreneur in the Philadelphia Water Department did two key things in preparation for a future policy window: he created an office organized around watersheds, and began redefining the problem; and (3) the policy entrepreneur capitalized on a regulatory policy window, the Combined Sewer Overflow Long Term Control Plan Update, that garnered momentum from the city's decision to "re-brand" itself as a green city and galvanized support for the $1.6 billion plan for green infrastructure across the city. These conclusions are supported by evidence from Philadelphia's decision to adopt a green infrastructure approach to manage runoff. Finally, I discuss the implications of these findings and make recommendations for the implementation of the plan.</Abstract>
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