Urban and Regional Planning and Design Theses and Dissertations
Permanent URI for this collectionhttp://hdl.handle.net/1903/26355
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Item Are Houston's Land Use Relationships Unique?(2021) Dorney, Christopher Leh; Knaap, Gerrit J; Urban and Regional Planning and Design; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)The city of Houston, Texas has been at the heart of a long-running debate in the United States on government’s proper role in the land development process. As the only large American city that never adopted a city-wide zoning ordinance, Houston is often cited as an example for why more or less government planning is needed. Some authors claim that Houston is an outlier when it comes to land use relationships, with strange land use juxtapositions quite prevalent. Other authors argue that zoning is largely redundant to market forces and that Houston’s land use relationships are not all that different from zoned cities. The purpose of this study is to inform this ongoing debate by undertaking a quantitative analysis of land use relationships across large American cities to determine if Houston’s are distinctive. The study develops several metrics to quantify land use relationships and uses principal component analysis to determine if Houston is an outlier. The findings indicate that Houston’s land use relationships are not substantially different from those of zoned cities.Item A Micro-Level Examination of the Impact of Rail Transit Investments on the Patterns of Firm Dynamics(2018) Saeed, Basheer A.; Iseki, Hiroyuki; Urban and Regional Planning and Design; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)Transit-oriented development has been increasingly implemented at stations of both existing and new fixed transit systems across the U.S. to stimulate local economy and create livable communities. A common belief among planners in favor of transit-oriented development is that the provision of passenger rail systems promotes urban development around rail stations. There is a lack of empirical evidence, however, that supports this presumption. To address the gap in relevant literature, this dissertation examines the impact of passenger rail stations on the four different patterns of firm dynamics in the State of Maryland—firm birth and inward relocation as positive impacts, and firm closure and outward relocation as negative impacts. This dissertation uses both standard and propensity-score-weighted negative binomial regression methods to analyze the dependent variables of firm dynamics constructed from the National Establishment Time Series (NETS) panel data of the State of Maryland from 1990 to 2010. By examining both positive and negative impacts of firm dynamics, this dissertation estimates the likelihood of firm retainment and net relocation for areas in proximity of the passenger rail stations, while controlling for a number of potentially confounding factors. Positive and statistically significant relationships are found between proximity to the passenger rail stations and the rates of firm births and inward relocating firms in Maryland, regardless of differences in the level of maturity of stations. From 1990 to 2010, the areas of passenger rail stations in Maryland experienced a wide range of rates of growth in firm density, depending on the year of station opening. The results of the four different patterns of firm dynamics suggest that areas near passenger rail stations gain belated economic benefits, well after the introduction of rail stations, shown by higher likelihood of firm retainment and net relocation around the mature rail stations opened before 1990. In comparison, areas near the less mature stations that opened after 1990 had predominantly lower likelihood of firm retainment and net firm relocation. Planners and policymakers should be proactive in directing development near rail stations by adopting a variety of measures and policies that support or at least consistent with transit-oriented development.Item The Impact of Conservation Easements on Habitat Loss in Agricultural Regions(2012) Braza, Mark Anthony; Chen, Alexander; Urban and Regional Planning and Design; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)Natural lands provide irreplaceable ecosystem services, such as wildlife habitat, water filtration and carbon sequestration, but in many regions, they are rapidly being converted to agricultural or urban uses. To counteract this trend, numerous land conservation programs purchase natural land but the impact of these programs is almost entirely unknown. This dissertation develops a framework for evaluating the impact of land conservation programs that incorporates theory from land economics and conservation planning. It posits that private land that enrolls in these programs will have lower economic value and higher ecological value than unenrolled lands. To test the framework, a Propensity Score Analysis is conducted for a federal conservation easement program in the northern plains of the United States. Measures of key economic characteristics (such as a tract's soil productivity, slope and distance to grain markets) and key ecological characteristics (such as a tract's accessibility to nesting pairs of migratory birds and the extent of grassland coverage surrounding a tract) are computed in a Geographic Information System. These measures are used to estimate a logistic regression model that predicts the probability that a tract of land enrolled in the program between 1990 and 2001. Consistent with expectations, tracts with lower economic value and with higher ecological value were more likely to enroll in the program. Using the predicted values from this model, enrolled tracts were matched with control tracts using four specifications of nearest neighbor matching with calipers. Under each of these specifications, the rate of grassland conversion between 2001 and 2006 on enrolled tracts was significantly lower (p<.0001) than the rate of conversion on control tracts by between 0.32 percent (for the specification with the lowest estimate) and 0.42 percent (for the specification with the highest estimate). These results indicate that the program did have a statistically significant impact on the rate of grassland conversion during this time period, although the impact was substantively slight.