geographic information systems · 2017-05-04 · geographic information systems program overview....

Gwinnett CountyGeographic

Information SystemsProgram Overview

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

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

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

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

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

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

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

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

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

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

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

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

Stormwater Utility Process

Start with aerial photos

Add impervious areas

Merge with parcels

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

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

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

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

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.

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.

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…

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

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

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.

Future Initiatives

• Digital Data Submission• Data Browser Enhancements• MAP2PDF by TerraGo• Continue to Expand Our Integration

Efforts

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