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Applications of GIS: Disaster Management and Emergency Response

Applications of GIS: Disaster Management and Emergency Response

Geographic Information System (GIS) technology is essential for risk identification, action prioritization, and resource optimization in critical situations like flooding and earthquakes. By integrating spatial and demographic data, GIS provides a comprehensive framework for emergency response.GIS integrates data layers, like rainfall intensity, topography, elevation profiles, and river levels, to model high-risk flood zones. These layers assess areas susceptible to flooding based on their...

Introduction to GIS

Introduction to GIS

Geographic Information Systems (GIS) are tools for storing, analyzing, and displaying spatial data alongside related attributes. Unlike traditional information systems that address general queries, GIS incorporates spatial components, enabling users to answer "where" and "how far." For example, GIS can process housing data linked to geographic locations like zip codes, allowing insights into population density or housing distribution through thematic maps.GIS integrates technologies such as...

Manipulation and Analysis

Manipulation and Analysis

GIS manipulation and analysis functions are vital for decision-making and planning. These activities range from data retrieval tasks, such as selecting information based on specific criteria, to advanced analytical techniques that address complex spatial problems.One critical GIS analysis method is overlaying, which combines multiple data layers to examine impacts. For example, overlaying a river-dammed lake boundary with road networks can identify affected infrastructure. Another common...

Levels of Use of a GIS

Levels of Use of a GIS

Geographic Information Systems (GIS) operate across three levels of application, each representing an increasing degree of complexity: data management, analysis, and prediction. These levels reflect the expanding functionality and versatility of GIS technology in handling spatial data for diverse purposes.Data ManagementAt its foundational level, GIS serves as a tool for data management, enabling the input, storage, retrieval, and organization of spatial data. This level is often employed in...

Design Example: Alignment of a Road Line Using GIS

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The alignment of a road line using Geographic Information Systems (GIS) is a critical process in civil engineering, combining advanced technology with practical decision-making. This methodology begins with the collection of geospatial data, including information on land cover, geomorphology, drainage patterns, slope, and contour details. Such data is typically acquired through satellite imagery and GIS tools, offering a comprehensive understanding of the terrain.Once the data is gathered, it...

Thematic Layering in GIS

Thematic Layering in GIS

In the past, planning projects such as schools or public facilities required extensive manual effort to gather and compile data. Information such as property boundaries, soil characteristics, road networks, zoning regulations, and flood zones had to be sourced individually from courthouses, utility providers, and registry offices. Assembling these datasets into a coherent format often took several months, delaying project timelines.The introduction of Geographic Information Systems (GIS)...

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Related Experiment Video

Updated: May 10, 2026

Integrated Field Lysimetry and Porewater Sampling for Evaluation of Chemical Mobility in Soils and Established Vegetation

Integrated Field Lysimetry and Porewater Sampling for Evaluation of Chemical Mobility in Soils and Established Vegetation

Published on: July 4, 2014

Using GIS to evaluate a fire safety program in North Carolina.

Thomas Dudley¹, Kathleen Creppage, Meghan Shanahan

¹Injury and Violence Prevention Branch, NC Department of Health and Human Services, 5505 Six Forks Road, Bldg. 1, A-2, Raleigh, NC 27609, USA. tedudley@gmail.com

Journal of Community Health

|June 27, 2013

Summary

Geographic Information Systems (GIS) efficiently evaluated a smoke alarm program, potentially saving 221-384 lives. This cost-effective method offers a novel approach for public health program impact assessment.

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Watershed Planning within a Quantitative Scenario Analysis Framework

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Last Updated: May 10, 2026

Integrated Field Lysimetry and Porewater Sampling for Evaluation of Chemical Mobility in Soils and Established Vegetation

Integrated Field Lysimetry and Porewater Sampling for Evaluation of Chemical Mobility in Soils and Established Vegetation

Published on: July 4, 2014

Watershed Planning within a Quantitative Scenario Analysis Framework

Watershed Planning within a Quantitative Scenario Analysis Framework

Published on: July 24, 2016

Area of Science:

Public Health
Geospatial Analysis
Program Evaluation

Background:

Evaluating public health program impact is crucial.
Geographic Information Systems (GIS) offer a novel approach for program evaluation.
Residential fires cause significant injuries and deaths.

Purpose of the Study:

To demonstrate GIS application in evaluating a smoke alarm installation program.
To assess the 10-year impact of the Get Alarmed, NC! program.
To estimate potential lives saved by the program.

Main Methods:

Overlapping Get Alarmed, NC! installation data with national fire incident data using GIS.
Matching addresses from distinct datasets efficiently.
Calculating potential lives saved based on program data and housing occupancy.

Main Results:

GIS proved to be an efficient and quick method for matching disparate datasets.
An estimated 221 to 384 residents were potentially saved by the program.
The GIS approach is inexpensive and can analyze large datasets.

Conclusions:

GIS provides a cost-effective and efficient method for public health program evaluation.
This approach has the potential for broader applications in public health.
GIS can help identify high-risk areas for targeted interventions.