What is a Geographic Information System? Geographic Information System = GIS.
Geographic Information Systems · 2017-05-04 · Geographic Information Systems Program Overview....
Transcript of Geographic Information Systems · 2017-05-04 · Geographic Information Systems Program Overview....
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Gwinnett CountyGeographic
Information SystemsProgram Overview
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Introduction
• Description of GIS at Gwinnett County
• GIS Strategic Plan
• GIS Data Sources and Update Strategy
• GIS Community
• Stormwater Utility
• GIS Data Browser
• Public Safety
• Future Projects
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GIS at Gwinnett County• GIS History
– 1989 – GDS– 1997 – ESRI
• GIS Governance– GIS Community of Interest (COI)
• Budget• Priorities• System Direction• ITS Serves in an Advisory Capacity• Business Community Directs System
• Enterprise System– Distributed Maintenance Responsibility– Fully Integrated With Other Enterprise
Business Systems
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GIS Strategic Plan
• Original Strategy Focused on Data Development
• Comprehensive Plan Developed in 2000– Budget– Agency Input– Application Development– Priorities Developed by GIS COI
• Current Plan Replaced in 2005– Budget– Agency Input– Prioritized Recommendations
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GIS Data Sourcesand Updates
• Base Map Updates Provided by Vendors– Annual Updates– Includes Color Digital Orthophotos & LIDAR– Perform extensive quality control
• Pictometry– Annual Updates
• Production Data Maintained by Agencies– Planning and Development– Water Resources– Police/Fire/EMS– ITS/GIS– Transportation
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GIS User Community
• User Base– ArcGIS: 140+– Pictometry: 375+– Web-based Browser – available
to all county staff• User Agencies
– All Emergency Services– All Major County Departments– Expanding to Other Agencies– GIS Intranet and Internet Site
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GIS Communications
• GIS Newsletter– Citizen and County Agency
• GIS News Group on employee web portal
• GIS Customer Service Meetings
• GIS Technical Liaison Group
• Annual Events Calendar
• Targeted Training Programs
• GIS Day Events
• Government Open House Day
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GIS Software• ESRI
– ArcGIS• ArcView• Arcinfo• Data Reviewer• ArcSDE with Oracle• ArcIMS• Additional Custom Extensions
• Miner & Miner – ArcFM & ArcFM Viewer & Custom Tools
• Pictometry – Electronic Field Study (EFS) • Tiburon – CAD 911 Geoprocessing• The Omega Group – CrimeView & FireView• Group One – Remote Access (Link for CAD Calls to
GIS data, Building/Site Preplans and Pictometry)• SDS – Parcel Analyst• CDARE - Custom Collision Diagramming Extension
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Enterprise Geodatabase• Centralized location for spatial data• Use of enterprise database in Web
applications• Efficient access to data thru joining spatial
data with tabular data• Easy to link to other RDBMS databases in
the County– Property Tax system– Permit database– Enterprise Resource Planning
• County-wide seamless layers– Allows for large area analysis– Not limited within a tile structure
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Pictometry Program
• Program Overview– 375+ Users– All County Agencies
• High Resolution for Desktop Computers• Low Resolution for Notebook Computers (Mobile
Use)• Current Users
– Emergency Services
– Tax Assessors
– Law Enforcement Community
– Elected Officials
– Planning and Development
– Land Acquisition
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Pictometry Deployment
• Remote Site Access– Network Access Speed– Local Server and Storage
• Wide Format Plotter– Network Access To Plotter
• Standard and Rugged Notebook Computers– Disk Space– Video and Physical Memory
• Acceptable Use Guidelines• Ongoing Support Requirements
– Current Street and Address Data– Land Parcels
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Stormwater Utility
• Ordinance adopted to create utility• Contracted an experienced consulting firm• Fee added to Property Tax bill• Initially applied to unincorporated
properties• 1 city joined utility since inception• Impervious surfaces defined as part of
ordinance
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Stormwater Utility
• Based on Planimetrics and Parcel GIS layers
• Parcels joined with Assessor’s database for billing
• Both datasets required adjustments to ensure complete match
• Export provided to Tax Commissioner for billing
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Stormwater Utility Process
Start with aerial photos
Add impervious areas
Merge with parcels
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Stormwater Utility Customer Service
• Impervious area map added to GIS Data Browser public website
• Citizens can lookup the bill amount and area for their property
• Customer service center setup for first billing cycle
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GIS Data Browser• Internet [public] and Intranet [login
required]• Application architecture:
– ArcSDE 9.1 and Oracle 9i– ArcIMS 9.1– Orion OnPoint
– Web-GIS– Built on and uses ArcIMS– Customized for County– Orion Products used:
– Professional– InstaMAP– Pictometry Extension
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Benefits of Web-GIS• Web-based application is easier to learn and deploy.• No need to visit each desk to install• Available to any county computer with a Web
browser.• Customized content, functionality, and appearance
for each department• All layers available on site- user don’t need to know
paths to data.• Increases GIS usage
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Functional and Flexible• Over 100 layers available• Can search by:
– Address– Street/Intersection– Parcel Number– City– Landlot
• Can find facilities:– Survey Monuments– Schools– Parks– Bus Routes– Fire Stations– Subdivisions– Hospitals– Fire & Police Stations– Truck Routes
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Land Parcel Research• Lookup by Parcel Identification Number or Address or
by selecting a location on a map.• Linked to Tax databases for Owner, Property, Building
info,• Up-to-date maps are always available.
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Cartographic Map Printing
• With the InstaMap part of the Data Browser, citizens can customize their own view and have a PDF of the map emailed to them.
• Or if using the Public Access kiosk they can send the map to a printer behind the Tax Assessor counter, and then pay for the map.
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Customer Relationship Management
• Integrated with SAP • Real-time Geocoding
of Service Requests• Dispatchers can see all
SRs in the area.• Multiple Departments• Intranet Based
Deployment• Displays location info
– District, Precinct, Property data, etc…
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Crime View
Crime Mappingextension for
ArcMap
Uses:• Crime Analysts use for
trends and patterns• Maps for Bi-weekly
CompStat Meetings• Supply citizen requests
for Crime Data• Quality of Life
Neighborhood Selections• Special Investigations
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Fire View
Uses:• Fire and Med Call Analysis• Station Planning• Equipment Locations• Service Boundaries• Repeat Calls• Arson Investigations• Response Analysis using
Street Network
Fire & Medical Call Mapping extension for
ArcMap
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Emergency Operations Center
• Allows central and remote agencies to see where emergency resources are allocated.
• Provides geocoding of incident locations and street maps of the area.
• Uses same map service as other websites.
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Future Initiatives
• Digital Data Submission• Data Browser Enhancements• MAP2PDF by TerraGo• Continue to Expand Our Integration
Efforts
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Questions
• Software Questions
• Data Source and Quality Questions
• Future Initiative Questions
www.gwinnettcounty.com
• Barry Puckett, GIS Manager
• Sharon Stevenson, GIS Associate
• Darlene Locklear, GIS Associate
Presenters