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Having an understanding of when, where, and why people settle in an area is crucial in explaining the growth course of a city. However, this cannot be done by looking at a city in isolation. Its surrounding region has a tremendous impact on its development. The purpose of this thesis is to examine the growth of Los Angeles from a regional perspective, called the Los Angeles city-system, which consists of Los Angeles and its hinterland. Connections are made between the history and the geography of the Los Angeles city-system by examining the spatial distribution of population within the region between 1769 and 2000. The Hoover Index of Population Concentration is used to determine the population concentration, and major shifts in the concentration are illuminated by the geography and historical events of the Los Angeles area. The main factors contributing to the changing concentration were the region's physical geography, the introduction of transportation innovations, the region's economic structure, historical and political events, and migration trends. It was found that the counties in closest proximity to Los Angeles County are becoming more alike, while the more peripheral counties are becoming more different. This has led to a greater understanding of urban/periphery growth economics.

This thesis presents methods to place landing sites for the Urban Air Mobility (UAM) concept. The analysis shows an integrated approach to establish UAM landing site requirements, place landing sites based on predicted demand, and estimate the costs associated with UAM landing sites. This thesis also makes estimates of fares associated with UAM operations. The methods presented are applied to three large urban centers in the United States. The analysis assumes an all-electric, advanced multi-rotor aircraft with autonomous navigational and Vertical Takeoff and Landing (VTOL) capabilities to estimate UAM landing site requirements. The thesis presents the land area requirements of UAM landing sites using Federal Aviation Administration heliport design criteria considering ground-taxi configurations. The analysis performed employs a UAM vehicle with an equivalent Rotor Diameter (RD) of 43 feet. In this thesis, UAM demand is estimated using a mode choice model developed in a companion study (UAM Scenario Analysis). The methodology to locate UAM landing sites includes splitting and consolidation of UAM landing sites considering the Zillow Transaction and Assessment Dataset (ZTRAX) to introduce land-use size and cost constraints. The sites are split using a K-Means clustering method and are consolidated using a simple center of mass approach where the demand of each landing site is analogous to mass. The results presented in this thesis apply to 75 and 200 landing sites in each region and assume passenger Cost-Per-Mile (CPM) of $1.20 and $1.80, respectively. This thesis presents a comparative study on how the availability of land affects the splitting, consolidation, and relocation of UAM landing sites for each region, the number of landing sites, and the cost per passenger-mile. / Master of Science / This thesis aims at the landing sites for the Urban Air Mobility (UAM) concept for commuting passengers in Northern California (17 counties), Southern California (9 counties), and Dallas-Fort Worth (12 counties) region. The aircraft for this service is designed to be an all-electric advanced multi-rotor aircraft with autonomous navigational and Vertical Takeoff and Landing (VTOL) capabilities. The commuting trips considered is focused on passengers traveling to work from home and back. This thesis presents the land area requirements of these landing sites, which are calculated from the Federal Aviation Administration's (FAA) Advisory Circular 150/5390-2C using ground-taxi configuration for a typical representative aircraft of an equivalent rotor diameter (RD) of 43 feet. The landing sites are then split into smaller sites and consolidated into larger sites. This thesis also presents a list of plots of land located within the 0.5 statute-mile boundaries of the landing sites for relocation. This entire analysis is based on the availability of land from the Zillow Transaction and Assessment Dataset (ZTRAX). The results presented in this thesis are for 75 and 200 landing sites set in the study area for a passenger Cost-Per-Mile (CPM) of $1.2 and $1.8, respectively. The results show how the availability of land changes for different CPM for a set of landing sites and affects the splitting, consolidation, and relocation of landing sites for each region. In the end, the thesis presents conclusions and recommendations unique to each region.

This study examined the knowledge and perceptions of the Latino population in Southern California towards Children Protective Services (CPS). Modern representation of social workers from the Department of Children and Family Services (DCFS), or Child Protective Services (CPS) often do not complement, support, or value the profession. This is a quantitative study with a sample of 103 Hispanic/Latino individuals ranging from the ages of 18 to over 60. An online Qualtrics survey was disseminated through social media and in person. It included a total of 26 questions measuring knowledge and perceptions. The purpose of this study was to better understand the Latino population as it relates to CPS, and create positive changes in the Latino communities CPS serves, with the hope to bring awareness and better service delivery.

Contrary to popular belief, the L.A. region is more of a desert than a tropical oasis. Little rainfall during the winter months and practically no rainfall during the summer months is characteristic of Southern California’s desert-like weather patterns. Due to these low precipitation levels, water is considered the most important commodity in the Los Angeles region. Prior to 1900, the inhabitants of this area were fully aware of the importance of water. Most settlements were established near water sources and had adopted various techniques and constructed small-scale dams to conserve and reuse rainwater. Yet these measures were not sufficient to sustain large populations during drought conditions. Most settlers were forced to seek other areas where more reliable sources of water were found. The construction of early engineering feats like the Los Angeles aqueduct quickly changed prior perceptions of the region’s potential. Such systems allowed for cheap and previously inaccessible water to flow to the abundant land, spurring an unprecedented population and agricultural boom. For decades, the construction of more aqueducts and canals provided a sufficient amount of water to meet the demand in the region’s growing agricultural and financial economy. As the abundance of land and favorable weather attracted more businesses and industries into the region, more and more homes were built to accommodate the workforce. By 1936, the Hoover Dam had been built and California had signed and agreed to the Colorado River Compact, which granted Southern California 4.4 million acre-feet annually of the Colorado River’s water. As a result, relatively cheap water was able to meet the demands, thus catapulting California’s agricultural industry and residential development.

Thesis (M.A.)--University of California, San Diego, 2009. / Title from first page of PDF file (viewed July 2, 2009). Available via ProQuest Digital Dissertations. Includes bibliographical references (p. 92-96).

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This thesis examines privatization of local level corrections in southern California.