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Title: Airline mergers and their effect on network structure.
Creator: Shaw, Shih-Lung, Ivy, Russell L.
Abstract/Description: The Airline Deregulation Act of 1978 introduced high-level competition into the US domestic industry. The resulting network changes have created a deluge of research, largely focused on the hub-and-spoke structure. Over 15 years have passed since deregulation, and the industry still appears somewhat unsettled. Recent concerns of domestic carriers include downsizing of some hubs, and discussions of further consolidation of operations. Mergers may be the answer for airlines with shrinking...
Show moreThe Airline Deregulation Act of 1978 introduced high-level competition into the US domestic industry. The resulting network changes have created a deluge of research, largely focused on the hub-and-spoke structure. Over 15 years have passed since deregulation, and the industry still appears somewhat unsettled. Recent concerns of domestic carriers include downsizing of some hubs, and discussions of further consolidation of operations. Mergers may be the answer for airlines with shrinking markets within the US transportation system. This study examines the effect on network structure created by the merger of two carriers from the perspective of hub structures, accessibility and geographic coverage.
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Date Issued: 1994
PURL: http://purl.flvc.org/fcla/dt/3327218
Format: Document (PDF)

Title: Watershed delineation in a low topographic relief landscape of south Florida.
Creator: Rose, Michael T., Florida Atlantic University, Shaw, Shih-Lung
Abstract/Description: Watershed delineations in low topographic relief landscapes with canal networks require hydrography. This hypothesis was tested by utilizing digital elevation models (DEMs). Seven DEMs were processed using two automated delineation methods. Both methods include filling of localized sinks, but an enhanced method incorporated incremental "tipping" to provide flow direction. In two watersheds studied, DEMs with only topography delineated watersheds within 24% and 84% of the manual delineation....
Show moreWatershed delineations in low topographic relief landscapes with canal networks require hydrography. This hypothesis was tested by utilizing digital elevation models (DEMs). Seven DEMs were processed using two automated delineation methods. Both methods include filling of localized sinks, but an enhanced method incorporated incremental "tipping" to provide flow direction. In two watersheds studied, DEMs with only topography delineated watersheds within 24% and 84% of the manual delineation. With the addition of hydrography, including canals, both watersheds were delineated to within 85% and 92% of the manual delineation. Contrary to the assumption that tipping would improve delineation, tipping decreased the delineated area by removing a water flow path. Based on this research, DEM input data and delineation method strongly influence automated watershed delineations in low relief conditions.
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Date Issued: 1998
PURL: http://purl.flvc.org/fcla/dt/15583
Subject Headings: Digital mapping, Watersheds--Florida, Florida--Maps
Format: Document (PDF)

Title: An event-based data model for transportation information systems.
Creator: Wang, Dongmei, Florida Atlantic University, Shaw, Shih-Lung
Abstract/Description: Trip-based data can provide important information about travel patterns and travel characteristics of people. To handle this type of transportation movement data in GIS (Geographic Information Systems), a new data model is needed to incorporate different aspects of a transportation movement with its spatial properties. From the study presented in this thesis, an event-based data model for transportation movement data was developed with the concepts of object orientation, feature-based...
Show moreTrip-based data can provide important information about travel patterns and travel characteristics of people. To handle this type of transportation movement data in GIS (Geographic Information Systems), a new data model is needed to incorporate different aspects of a transportation movement with its spatial properties. From the study presented in this thesis, an event-based data model for transportation movement data was developed with the concepts of object orientation, feature-based approach, and relative referencing methods. The implementation of this new data model with a prototype system shows the capability of this data model in handling transportation movement data. This data model has also improved the information retrieval ability provided by the current GIS data models.
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Date Issued: 1998
PURL: http://purl.flvc.org/fcla/dt/15587
Subject Headings: Information storage and retrieval systems--Transportation, Geographic information systems, Trip generation
Format: Document (PDF)

Title: Design considerations of a spatiotemporal GIS database for data exploration.
Creator: Donnelly, Janet D., Florida Atlantic University, Shaw, Shih-Lung, Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: The development of geographic information systems (GIS) has changed the way in which geographers are able to visualize and investigate spatial topics. Current research has now shown a need to incorporate the element of time into a GIS for the purpose of better understanding the processes that are related to change. This study investigates two methods of creating spatiotemporal databases, using the evolution of an airline route system as an example. Also discussed are the ways in which a user...
Show moreThe development of geographic information systems (GIS) has changed the way in which geographers are able to visualize and investigate spatial topics. Current research has now shown a need to incorporate the element of time into a GIS for the purpose of better understanding the processes that are related to change. This study investigates two methods of creating spatiotemporal databases, using the evolution of an airline route system as an example. Also discussed are the ways in which a user-friendly interface may be incorporated for easier data exploration.
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Date Issued: 1993
PURL: http://purl.flvc.org/fcla/dt/14966
Subject Headings: Space and time, Geographic information systems, Geography--Computer programs
Format: Document (PDF)

Title: Content standards for digital geospatial metadata: A quality control tool for project management.
Creator: Parent, Elena A., Florida Atlantic University, Shaw, Shih-Lung, Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: Dissemination of geographic technologies to various application areas have resulted in people without adequate spatial background manipulating these technologies. This thesis will set forth a process for increasing the data quality in projects for anyone who implements these procedures. It includes documents that are designed on the basis of Metadata Content Standards to extract pertinent information. The process also implements the semi-autonomous work group for these projects. It brings...
Show moreDissemination of geographic technologies to various application areas have resulted in people without adequate spatial background manipulating these technologies. This thesis will set forth a process for increasing the data quality in projects for anyone who implements these procedures. It includes documents that are designed on the basis of Metadata Content Standards to extract pertinent information. The process also implements the semi-autonomous work group for these projects. It brings people of different strengths into one cohesive work unit while expanding the knowledge of each and allowing for dispersal of information in an efficient manner.
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Date Issued: 1996
PURL: http://purl.flvc.org/fcla/dt/15251
Subject Headings: Digital mapping--Standards, Cartography--Automation--Standards
Format: Document (PDF)

Title: Moving towards Societal Geographic Information Systems through the Internet: Data access alternatives.
Creator: Cottrell, David G., Florida Atlantic University, Shaw, Shih-Lung, Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: With the advent of Geographic Information Systems and Geographic Information Science (GIS) over the last 20 years, the field of Geography, mainly the applied sector, has gained increased recognition world wide. Along with this has come an increased ability and need for the sharing of geographic data. This thesis will investigate the various means currently available to facilitate data sharing, including the availability of geographic data distributed throughout the Internet. A number of World...
Show moreWith the advent of Geographic Information Systems and Geographic Information Science (GIS) over the last 20 years, the field of Geography, mainly the applied sector, has gained increased recognition world wide. Along with this has come an increased ability and need for the sharing of geographic data. This thesis will investigate the various means currently available to facilitate data sharing, including the availability of geographic data distributed throughout the Internet. A number of World Wide Web sites providing geographic data were chosen as a representative cross section of the current functionality available on the Internet. This document is intended to be used as a guide for more effective implementation of World Wide Web "GIS" sites and aid in conceptualizing the Internet as a Societal GIS.
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Date Issued: 1996
PURL: http://purl.flvc.org/fcla/dt/15281
Subject Headings: Geographic information systems--Computer network resources, Cartography--Computer network resources, World Wide Web, Internet
Format: Document (PDF)

Title: Patterns and rates of melaleuca invasion in southeast Florida.
Creator: Ferriter, Amy Patricia., Florida Atlantic University, Shaw, Shih-Lung, Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: Melaleuca is an invasive exotic tree which is rapidly expanding into essentially every native ecosystem in South Florida. Native to Australia, melaleuca currently has no natural enemies within the region. If left unchecked, melaleuca may eventually degrade all of South Florida's natural wetlands. This study examined eight now heavily melaleuca infested one square mile sites within Southeast Florida over a period of fifteen years. Through historical aerial photo interpretation, patterns and...
Show moreMelaleuca is an invasive exotic tree which is rapidly expanding into essentially every native ecosystem in South Florida. Native to Australia, melaleuca currently has no natural enemies within the region. If left unchecked, melaleuca may eventually degrade all of South Florida's natural wetlands. This study examined eight now heavily melaleuca infested one square mile sites within Southeast Florida over a period of fifteen years. Through historical aerial photo interpretation, patterns and rates of melaleuca invasion were described and quantified. These data are discussed and compared to similar studies conducted for other plant species.
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Date Issued: 1993
PURL: http://purl.flvc.org/fcla/dt/14901
Subject Headings: Melaleuca--Florida, Phytogeography--Florida, Florida--Trees
Format: Document (PDF)

Title: A GIS approach to linking spatial patterns and trip generation/trip distribution modeling.
Creator: Harris, David Michael., Florida Atlantic University, Shaw, Shih-Lung, Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: Geographic information systems (GIS) have been increasingly used in urban transportation planning and modeling. One key advantage of GIS is its ability to integrate and analyze various kinds of geographically referenced data. Modeling and analysis tools used to predict travel patterns should be shaped by changes in spatial organization that are currently taking place. Utilizing the detailed data made available by GIS, this study investigates the potential improvements offered to the...
Show moreGeographic information systems (GIS) have been increasingly used in urban transportation planning and modeling. One key advantage of GIS is its ability to integrate and analyze various kinds of geographically referenced data. Modeling and analysis tools used to predict travel patterns should be shaped by changes in spatial organization that are currently taking place. Utilizing the detailed data made available by GIS, this study investigates the potential improvements offered to the conventional trip generation and trip distribution models by explicitly referencing the spatial land use and street network patterns within traffic analysis zones (TAZs).
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Date Issued: 1995
PURL: http://purl.flvc.org/fcla/dt/15174
Subject Headings: Geographic information systems, Spatial analysis (Statistics)--Data processing, Urban transportation--United States--Mathematical models
Format: Document (PDF)

Title: GIS and spatial data analysis: A case study using MODFLOW and ARC/INFO.
Creator: Hinton, Matthew Alfred., Florida Atlantic University, Shaw, Shih-Lung, Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: GIS is expected to differ from other digital spatial data handling packages by virtue of its emphasis on spatial analysis and modeling, yet major limitations of spatial analytical capabilities are still observed. To identify the types of spatial analysis which are desirable and appropriate to GIS, this thesis proposes a systematic 'building-blocks' approach for the identification of data models and spatial analytical tools to develop a flexible and powerful GIS spatial analysis and modeling...
Show moreGIS is expected to differ from other digital spatial data handling packages by virtue of its emphasis on spatial analysis and modeling, yet major limitations of spatial analytical capabilities are still observed. To identify the types of spatial analysis which are desirable and appropriate to GIS, this thesis proposes a systematic 'building-blocks' approach for the identification of data models and spatial analytical tools to develop a flexible and powerful GIS spatial analysis and modeling environment. The building-blocks approach will be demonstrated in this thesis by examining a ground water flow model in MODFLOW, an SDA package designed specifically for this purpose. Procedures in MODFLOW will be disassembled into their primitive component functions, or building-blocks, which will then be sought out in ARC/INFO, representing a modern, general-purpose GIS. In the process, the levels of integration between GIS and SDA will be encountered and discussed.
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Date Issued: 1994
PURL: http://purl.flvc.org/fcla/dt/15007
Subject Headings: Geographic information systems, Spatial analysis (Statistics)--Data processing, Information storage and retrieval systems--Geography
Format: Document (PDF)

Title: Geographic analysis of travel characteristics using GIS.
Creator: Lall Dass, Phillip Vasudava., Florida Atlantic University, Shaw, Shih-Lung, Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: At present the current trip generation models used in the state of Florida to derive residential trip generation rates take into account three variables, dwelling type, auto ownership and household size. It is hoped that by examining geographic location, improvements can be made to the present Florida Standard Urban Transportation Modeling Structure (FSUTMS). To analyze the impact of geographic location, GIS technology will be used. GIS will aid the study in several ways. It will be used to...
Show moreAt present the current trip generation models used in the state of Florida to derive residential trip generation rates take into account three variables, dwelling type, auto ownership and household size. It is hoped that by examining geographic location, improvements can be made to the present Florida Standard Urban Transportation Modeling Structure (FSUTMS). To analyze the impact of geographic location, GIS technology will be used. GIS will aid the study in several ways. It will be used to identify urban centers and major highways within the study area and once this is accomplished, GIS will be used to create zones around the selected urban centers and the major highways. Finally GIS will be used to prepare the survey data for statistical analysis. In addition to looking at geographic location, the study will also examine whether certain lifestyle variables can influence residential trip rates within the study area. Throughout this study it is hoped that the predictive power of the Florida Standard Urban Transportation Modeling Structure can be improved.
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Date Issued: 1996
PURL: http://purl.flvc.org/fcla/dt/15384
Subject Headings: Geographic information systems, Trip generation, Transportation geography
Format: Document (PDF)

Title: From photo interpretation to GIS: Data quality assessments.
Creator: Conaway, Michael D., Florida Atlantic University, Roberts, Charles, Shaw, Shih-Lung, Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: Much of the recent research concerning the use of GIS has revolved around data quality. Types of errors inherent in GIS data layers, and also errors that may be produced through the creation and manipulation of data layers have been identified. Definitions of these errors, and observations of how these errors occur have been offered. However, the majority of the research is qualitative. It is known that positional variation is produced through differing interpretations and generalization of...
Show moreMuch of the recent research concerning the use of GIS has revolved around data quality. Types of errors inherent in GIS data layers, and also errors that may be produced through the creation and manipulation of data layers have been identified. Definitions of these errors, and observations of how these errors occur have been offered. However, the majority of the research is qualitative. It is known that positional variation is produced through differing interpretations and generalization of points, lines, and polygons, but it is not known to what extent. This information would be extremely helpful in allowing the user of the information to fine tune the application, based on the accuracy of the data. Providing this type of information is the goal of this research. Quantitative analysis of the results of a series of experiments will give a numerical range of possible positional errors produced through database creation via aerial photo interpretation.
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Date Issued: 1996
PURL: http://purl.flvc.org/fcla/dt/15280
Subject Headings: Geographic information systems, Remote sensing--Data processing, Image processing, Photographic interpretation
Format: Document (PDF)

Title: Fractal dimensions of Florida wetlands.
Creator: King, Stephen James., Florida Atlantic University, Shaw, Shih-Lung, Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: Application of fractal concepts to geographic problems is reviewed. The basics of fractals are presented. Scale, self-similarity and their effects on natural phenomena are discussed. Eight sites (six wetland and two non-wetland) are studied. Using Landsat Multi-Spectral Scanner data, the fractal dimensions of the surface reflectance of the sites are calculated by the contour method. Values obtained are related to the type of wetland and the structure and processes that characterize that type...
Show moreApplication of fractal concepts to geographic problems is reviewed. The basics of fractals are presented. Scale, self-similarity and their effects on natural phenomena are discussed. Eight sites (six wetland and two non-wetland) are studied. Using Landsat Multi-Spectral Scanner data, the fractal dimensions of the surface reflectance of the sites are calculated by the contour method. Values obtained are related to the type of wetland and the structure and processes that characterize that type of wetland. Forested wetlands were found to have the lowest fractal dimension. Mixed forested and non-forested had the highest. Marshy non-forested sites were higher than expected. Conclusions drawn are that physical characteristics of different wetlands result in measurable differences in fractal dimension. Fractals will be valuable in computer aided wetland identification in the future.
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Date Issued: 1993
PURL: http://purl.flvc.org/fcla/dt/14892
Subject Headings: Wetlands--Florida, Fractals, Geography--Mathematical models
Format: Document (PDF)

FAU Theses and Dissertations (11)	+ -
FAU College Collections (1)	+ -

Geographic information systems (6)	+ -
Spatial analysis (Statistics)--Data processing (2)	+ -
Trip generation (2)	+ -
Cartography--Automation--Standards (1)	+ -
Cartography--Computer network resources (1)	+ -

Digital mapping (1)	+ -
Digital mapping--Standards (1)	+ -
Florida--Maps (1)	+ -
Florida--Trees (1)	+ -
Fractals (1)	+ -
Geographic information systems--Computer network resources (1)	+ -
Geography--Computer programs (1)	+ -
Geography--Mathematical models (1)	+ -
Image processing (1)	+ -
Information storage and retrieval systems--Geography (1)	+ -
Information storage and retrieval systems--Transportation (1)	+ -
Internet (1)	+ -
Melaleuca--Florida (1)	+ -
Photographic interpretation (1)	+ -
Phytogeography--Florida (1)	+ -
Remote sensing--Data processing (1)	+ -
Space and time (1)	+ -
Transportation geography (1)	+ -
Urban transportation--United States--Mathematical models (1)	+ -
Watersheds--Florida (1)	+ -
Wetlands--Florida (1)	+ -
World Wide Web (1)	+ -

Electronic Thesis or Dissertation (11)	+ -
article (1)	+ -

Shaw, Shih-Lung (12)	+ -
Florida Atlantic University (11)	+ -
Charles E. Schmidt College of Science (9)	+ -
Department of Geosciences (9)	+ -
Conaway, Michael D. (1)	+ -

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