Strategic Plan - Westchester County GIS

Westchester County
Department of Information Technology
Geographic Information Systems
2012 Strategic Plan
Table of Contents
2012 GIS Mission........................................................................................................3
GIS Vision .....................................................................................................................3
GIS Program ................................................................................................................3
I.
Data .................................................................................................................4
II.
Growth ............................................................................................................5
III.
System Infrastructure ...............................................................................6
GIS Staff Resources...................................................................................................7
2012 Westchester County GIS Program Goals ............................................... 10
I.
Administrative ............................................................................................ 10
II.
Applications and Software ...................................................................... 11
III.
Data Management..................................................................................... 12
Westchester County GIS User Group ................................................................. 14
GIS Projects, Applications and Services ........................................................... 16
Westchester County GIS on the Web................................................................. 25
Shared Services: Local Government and School Districts .......................... 26
Program Metrics ........................................................................................................ 28
Geospatial Data Layers ........................................................................................... 32
GIS System Architecture........................................................................................ 35
ON THE COVER: Digital Surface Model (DSM) of White Plain/Harrison area.
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2012 GIS Mission
The Department of Information Technology (DoIT) Geographic Information Systems
(GIS) program helps County departments and government agencies improve
service delivery to the citizens of Westchester County by coordinating, designing
and implementing cost-effective geospatial technologies and services.
Program
activities and resource allocation are aligned with County government priority areas
of fiscal responsibility, public health and safety, and the environment. Of growing
importance in 2012 will be the use of GIS technology in the continued inventory
and mapping of the County’s critical infrastructure including water supply, storm
water, and sanitary sewer systems.
GIS Vision
In the rapidly evolving and expanding field of geospatial technology, Westchester
County GIS works to provide and support state-of-the-art GIS and mapping
services and applications. As part of this commitment, GIS staff will be proactive in
leveraging new geospatial solutions based on enterprise Environmental Systems
Research Institute (ESRI) software (www.esri.com), while exploring opportunities to
integrate innovative open source technologies for broad and cost-effective
deployment in County and local government, and the business community.
Increased collaborative work with County school districts as part of the Shared
Services program offers many new opportunities in geospatial data sharing,
research and analysis support, and GIS mapping applications.
GIS Program
The success of the County’s GIS program, since its inception in 1988, is due to
many factors. The program has maintained active support of both the office of the
County Executive and the Board of Legislators and is now strategically integrated
into several County enterprise systems.
Considered a critical County asset, GIS
technology is used as a tool to save time, money and lives and is leveraged on a
day-to-day basis throughout County and local government.
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As an enterprise technology, the program continues to take a holistic view of GIS
infrastructure, data, applications, and processes with the intent of cost–effectively
leveraging resources across the County.
As user and system demands for
improved functionality, availability and reliability continue to escalate in several
computing environments (i.e., Web, desktop, mobile), an increased complexity in
GIS infrastructure and services will be required. These demands will be even more
challenging in 2012 as both County and local governments face ongoing funding
and budgetary challenges.
Operational needs, combined with new technology opportunities built around ESRI’s
world-leading GIS software, will continue to drive the GIS business plan.
Geospatial professionals, including the growing number of users in professional
engineering and business disciplines, will continue to rely on ArcGIS desktop client
software while non-technical staff and County residents will access enterprise GIS
content through ESRI web mapping applications and easy-to-use viewers such as
ArcGIS Explorer and Google Earth.
integrate
County
GIS
published
Business and industry will leverage and
authoritative
map
services
into
business
applications.
Building on the highly successful GIS Day event at Westchester Community College
on November 16, 2011, it is anticipated GIS user meetings for Westchester County
staff will continue to be held in 2012. In a similar context, GIS staff administers
the Westchester County GIS User Group, where several dozen municipal GIS
practitioners normally meet twice each year.
This group has proven to be an
excellent forum to keep users across all disciplines (industry, academia, non-profit
and government) informed about the services and programs offered by Westchester
County GIS, as well as GIS events, training and education opportunities,
and
technology in general.
In 2012, GIS will focus in the following areas:
I.
Data – Priority geospatial data development projects scheduled for 2012
include a photogrammetric update of the countywide base map including
planimetric features such as building footprints, edge of pavement, sideways
and street centerlines. Last updated Spring 2004, this project is anticipated
to be a coordinated through the New York State Digital Orthoimagery
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Program (NYSDOP). Critical infrastructure geospatial datasets, which include
water and sanitary sewer systems that support a wide range of County and
local government business needs, will continue to be prioritized for
automation and mapping.
The ongoing efforts of fire hydrant mapping for
local fire departments and the mapping of all public water supply systems are
also illustrative of this effort.
The County GIS program will continue to
advance its effort to promote “Data as a Service” (DaaS) to both
governments and business partners.
DaaS map services provide software
developers with reduced data development and integration costs and often
decrease the overall cost of application development. Additionally, work will
continue in building datasets on the location of service providers to improve
and optimize service delivery in the areas of
protection services.
senior programs and child
Geospatial data projects were completed in 2011, most
notably derivative products from the countywide LiDAR dataset obtained
from NYC Department of Environmental Protection and delivery of the
Pictometry oblique imagery and street-level photography.
In 2012, staff will continue to improve and implement methods to measure
enterprise data accuracy and completeness.
While a comprehensive
planimetric update is scheduled for core base map data layers, other critical
enterprise GIS datasets (which have not been updated in several years) will
be the focus of update efforts, pending resource availability. Assistance will
be provided to “authenticate” databases owned or maintained by user
departments. Proper tools and business processes will continue be adopted
by individual departments as this data stewardship approach becomes more
fully realized across the enterprise.
II. Growth – Expanding GIS services and applications in strategic and
regulatory County program areas including Social Services,
Health, and
Environmental Facilities. Updating mission critical applications in the areas of
Public Safety and Emergency Services, Homeseeker (housing settlement),
and transportation systems with new software components and GIS datasets
will also remain a priority.
Where cost savings are clearly measureable,
County GIS will collaborate with local governments and school districts to
design and support geospatial programs and activities through cost-effective
server and internet based systems. Web based automated mapping routines
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for the production of hardcopy maps will also be reviewed. Geospatial
applications are also anticipated to expand on mobile platforms initially with
RIM Blackberry and later with Androids and iPhones. GIS staff will continue
to monitor opportunities to provide solutions for MS4 regulatory programs for
both County and local governments.
III. System Infrastructure – Focused efforts will continue to strengthen GIS
enterprise system stability and reliability, bringing infrastructure components
up to current software releases, developing and maintaining staff expertise in
core ESRI software components and database management software (Oracle
and SQL Server), GIS application development environments (JavaScript,
Microsoft Silverlight, HTML5) and building capacity to support vendordeveloped systems.
Responding to a series of cost-reducing hardware
infrastructure redesign issues in 2011, work is now on schedule to complete
migration of the enterprise ESRI software environment to ArcGIS 10.0 by
mid-2012.
The enterprise GIS infrastructure includes six GIS database
servers and 14 application servers (nine physical servers and five virtual
servers) to support production, standby and development environments. Six
GIS database servers are used for three Oracle Real Application Clusters with
each Oracle cluster having three databases (vector, raster and publishing)
and two terabytes of disk storage. Fourteen GIS application servers will be
used for a wide range of GIS applications including enterprise geocoding
services, emergency services, internet and intranet programs, and various
departmental applications. County GIS staff anticipates offering “Software as
a Service” (SaaS) to local governments over the County’s secure network
which will provide cost savings to municipalities in context of reducing the
need to develop GIS applications and related components. The publication of
industry standard and Open Geospatial Consortium (OGC) compliant map
services will be the focus and foundation of this effort.
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GIS Staff Resources
County GIS staff is dedicated to maintaining core GIS services such as base layer
maintenance, GIS application hosting, system administration, data management,
imagery acquisition, training, and GIS availability / access at the enterprise level.
Staff provides geospatial support services to all county departments, including
customer assistance, mapping, spatial analysis, data integration, application
development, and project management.
GIS staff also supports the Emergency
Operations Center for special events and activations.
To build GIS capacity throughout county departments,
GIS staff encourages
departments to take responsibility for the creation and maintenance of agency
spatial datasets which can be used for enterprise applications. Data development is
also provided through agreements to departments that may lack the specific
technical expertise or prefer to have this function tasked to GIS staff. Departments
such as Health, Planning, PRC, Transportation and Public Works, Board of Elections,
Emergency Services, Probation, Environmental Facilities, and the District Attorney’s
office all have internal staff performing various levels of GIS work.
All county departments are included in the enterprise licensing agreement (ELA)
with ESRI which GIS staff administers and manages. Desktop support is currently
extended to 88 ArcGIS client software users in 16 departments and offices. In
2011, an additional 61 staff were provided training in Pictometry’s Electronic Field
Study and Facet’s Parcel Van View software.
The County negotiated perpetual
licensing for both of these software programs, extending to every city, town and
village in the County.
Pending available funding, GIS staff will attempt to be scheduled for software
training to meet changing GIS technology needs. Annual events such as the ESRI
User Conference, Northeast Arc Users Conference, the New York State GIS
Conference, and the Annual NYCArc User Symposium provide excellent and
affordable opportunities for GIS staff to be exposed to new state-of-the-art
advancements and to learn new skills.
GIS staff continues to analyze metrics on GIS system access and use (software
licensing, desktop usage, intranet and internet application access, data downloads,
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etc.) as a means to track resource demand and plan for GIS resources in the
future. During 2011, increased demand for GIS staff services was evidenced in the
areas of emergency services (Hurricane Irene mapping support), a web-based
housing settlement application, social and senior services, infrastructure mapping,
and shared services.
GIS usage is anticipated to continue to expand as mobile
devices become more common in government business applications and used as a
means to access enterprise GIS content.
In addition to County departments, the demand for County GIS staff services
remains strong throughout local governments where the county continues to be
recognized as providing a leadership role and responsible for establishing several
cost-effective and successful GIS programs. In many respects the County’s built
GIS infrastructure serves as a “GIS Cloud” to local governments providing
consumable map services, spatial data downloads, and interactive online web
mapping applications which contain authoritative local datasets.
In 2011, GIS
outreach to local governments extended to nearly three dozen municipalities.
Central to the collaborative work between County GIS and local governments is
data sharing in program areas such as tax mapping, police and fire departments,
critical infrastructure, and land use planning, all of which routinely integrate the
County’s GIS data resources and mapping services.
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Westchester County school districts use GIS technology on a daily basis in program
areas such as bus routing, facilities and campus management, demographic and
statistical analysis, and in classroom teaching.
Though requiring further analysis
and discussion, there appears to be many areas where school districts can
collaborate with the County GIS staff in data sharing, GIS technical support, and
accessing web services.
Such an alliance could produce cost savings in several
school district geospatial-based program areas.
This countywide leadership role is anticipated to expand to both user communities
in 2012 as highlighted at the Westchester County Shared Services Day held at the
County Center on October 11, 2011.
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2012 Westchester County GIS Program Goals
Program goals have been initially identified and will be pursued in several critical
areas:
I.
Administrative
 Maintain administrative and management procedures which evaluate staff
resource allocations and productivity relative to the annual goals of the
County Executive’s office and DoIT.
 Prioritize cost-effective geospatial systems which promote the public good in
the areas of health and public safety, infrastructure management, economic
development and tourism, environmental and land use planning, and the
overall general welfare of the residents of the County.
 Remain committed to maintain
Geographic Information System
Westchester County governments.
geospatial programs will continue
possible.
a reliable and cost-effective enterprise
which supports the business needs of
Integration with individual school district
to be reviewed and implemented where
 Continue to review opportunities for cost savings in the consolidation of a
single GIS vendor (i.e., products/software and professional services)
contracts.
 Improve and expand countywide GIS coordination and projects through
Shared Services focusing on GIS solutions based on common business needs
and industry standards.
 Promote Westchester County GIS programs through local, regional, state,
and federal geospatial initiatives.
 Expand GIS marketing and business communications via:
o
Social networking technologies such as Facebook, Twitter, and
YouTube to reach the broad GIS community with timely and pertinent
information on Westchester County GIS products and services.
o
Proactive email communications with both Westchester County staff
and local government GIS users.
o
Posting of GIS updates, data development efforts, advancements in
data viewers, web mapping applications, and related activities to NYS
GIS, GISMO, and NEARC listservs as well as websites for professional
organizations such as the Westchester/Putnam Chapter of the NYS
Society of Professional Engineers, Westchester Water Works
Conference, Westchester County Association of Municipal Public Works
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Administrators,
County.
and
Federated
Conservationists
of
Westchester
o
Promote GIS Day 2012 in partnership with the Westchester County
GIS Users Group and Westchester Community College. One of the
signature events associated with GIS Day are maps and posters
submitted by GIS users in government, industry, and academia.
o
Publication of the GIS newsletter, now in its fourteenth year of
circulation, two to three times with particular focus on the new Online
Express Version.
 Maintain a proactive commitment to pursue non-tax levy sources of funding
such as grants to support County GIS projects. Such funding sources include
NYS
Dept.
of
Environmental
Conservation
(http://www.dec.ny.gov/pubs/grants.html),
NYS
Dept.
of
State
(http://www.dos.state.ny.us/grants.html),
and
federal
grants
(www.grants.gov).
 On request, deliver educational presentations on the benefits of geospatial
technologies for County Executive staff, Board of Legislators, professional
societies and organizations, elected officials, schools, and community groups.
II. Applications and Software
 Aggressively lead research and development of mobile geospatial solutions
for County business applications with a focus in the fields of emergency
response and public safety, inspections, and environmental monitoring.
 Maintain a focused program to develop scalable, server-based GIS solutions
for County business functions. This technology offers customizable costeffective solutions to a broader range of users while reducing the need for
more costly client-based software systems.
 Advocate the use and distribution of free and easy-to-use data viewers such
as ArcGIS Explorer, Google Earth, and GeoPDF (Adobe) integrated with
Westchester County GIS (and local) geospatial content. These viewers are
excellent tools for non-technical users and include the use of shapefiles, KML
and connections to live map services.
 With available staff resources, maintain and support geospatial components
of all mission critical services with particular focus on public safety mapping
programs at the Emergency Operations Center.
 Promote the use of GIS-based applications in the areas of health and human
services for improved service delivery. Efforts in County programs such as
Child Protection Services, Senior Programs and Services (Livable
Communities), and Homeless Shelter assistance are already under review.
 Migrate and expand the existing Dept. of Environmental Facilities (DEF) ASMI
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application to a new ArcGIS 10.0 solution. The new viewer should provide
both improved access and functionality and include a larger number of DEF
geospatial datasets.
 Having worked through redesign issues associated with the new GIS
enterprise hardware and software architecture plan proposed by ESRI,
finalize the migration of all enterprise GIS components to ArcGIS Server
10.0.
 Continue development of “Software as a Service” (SaaS) for local
governments and school districts providing online access to County
geospatial applications.
 In the first quarter 2012, make available an ArcGIS Server map service in
Spanish (Mapa de Westchester County) which can be consumed and used
with the ArcGIS Explorer Spanish client. The combination of both the
software and data will be accessible through the County GIS website.
 Review application development opportunities with the Office of Tourism.
 Evaluate existing vendor data and software subscription contracts for cost
effectiveness as well in context of alternative solutions.
 Manage the ESRI Enterprise Licensing Agreement (ELA) with ESRI which
includes:
o
Maintenance of all existing licenses for County staff; unlimited access
to all core ESRI software.
o
Annual technology update, enterprise system planning session, and
quarterly system on-site support from ESRI.
o
ArcSDE Administration support direct from ESRI – Boston staff.
III. Data Management
 Contract for Phase 1 of the countywide base map update with the acquisition
of orthophotography through the NYS Digital Orthoimagery Program
(NYSDOP). After delivery of the countywide imagery in early 2013, work will
begin on planimetric feature mapping by a selected contractor. Countywide
color orthophotography captured through these efforts is integrated in nearly
every County and local government mapping applications.
 Focus on the continued acquisition and development of critical infrastructure
datasets including public water distribution, storm water, and sanitary sewer
systems. Important to a range of infrastructure management and public
safety programs, much of this work requires coordination with local
governments which have jurisdictional and maintenance responsibilities over
these systems.
Such efforts also support the goals of the Mid-Hudson
Regional Economic Development Council Strategic Plan.
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 Complete and finalize delivery of LiDAR-based products including countywide
one-meter Digital Elevation and Surface Models (DEM and DSM), an
‘Intensity’ image, and updated elevation contours. The datasets will be used
in numerous programs, to perform hydraulic and terrain modeling, watershed
analysis, flood studies, impervious surface classification, and for 3D
visualization.
 Finalize the inventory and mapping of public water distribution systems as
part of a program funded through the Department of Emergency Services.
Initiated in 2011, data acquisition and development work associated through
this project will provide critical infrastructure data to DES and Department of
Health staff.
 Continue data development efforts to support GIS-based applications in the
Department of Social Services and Westchester County Tourism Office.
 Continue proactive efforts to secure high-accuracy local government funded
spatial datasets (tax parcel boundaries and public infrastructure datasets)
through cost-effective data sharing agreements.
 Broaden the maintenance plan for enterprise GIS data which as of December
2011 contains approximately 500 datasets. Spatial datasets are updated in a
variety of ways including: (1) scheduled/ on-demand maintenance, (2)
obtained from authoritative outside sources (i.e., local, state or federal
agencies), or (3) updated as part of a supported business (departmental)
process. Representing 20 years of investment, geospatial data continues to
be one of the County’s most valuable assets.
 Complete delivery and storage of countywide Pictometry imagery and street
level photography which is available to all County and local government
employees. Discussions are scheduled to review options for integration of
this project data into other enterprise applications and viewers.
 Continue to support on-demand County GIS data distribution through
download services via the Data Warehouse and from Mapping Westchester
County. Downloaded data is accompanied with FGDC (www.fgdc.gov)
compliant metadata.
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Westchester County GIS User Group
The GIS User Group establishes a medium to collaboratively maximize the effective
use of GIS resources throughout County government.
The User Group, which
meets annually, draws participants from County and local government, as well as
from local businesses and industries involved in geospatial data development and
related services. The 2011 User Group meeting was sponsored by and held on the
campus of Westchester Community College on GIS Day, November 16th.
The
meeting was highly successful and well attended.
The User Group serves as an advisory forum for issues that cross department and
government
boundaries,
providing
implementation of GIS services.
input
to
the
planning,
development,
Attendees observe software and technical
presentations which facilitates knowledge transfer and communication between GIS
users. Topics and subject matter from recent user group meetings include:

ESRI software updates

Advancements in new geospatial
technologies (Web services,

and/or services


GIS dataset ownership and
maintenance
GPS, viewers, Open Source,
etc.)
Acquisition of data, imagery,

Vendor presentations
GIS training and education
In addition to the many local governments participating in the GIS User Group
during 2011, several Westchester County departments are often represented as
well including:

Environmental Facilities

Office for the Disabled

Health

Traffic Engineering

Emergency Services

Consumer Affairs

Parks, Recreation & Conservation

Transportation

Planning

Corrections

Public Safety

Family Court

Probation

District Attorney

Senior Services

County Clerk
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In 2012, County GIS staff will be hosting a series of informal sessions and
demonstrations on topics such as “What’s new at ArcGIS 10.0”, leveraging map
services geocoding services, new viewing clients, and updates to the Spatial Data
Warehouse.
These sessions will be held in the GIS map room and open to all
County staff.
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GIS Projects, Applications and Services
Mapping Westchester County
Internet
Mapping Westchester
County is the primary
public facing interactive
mapping application
from Westchester
County GIS. The
application provides
residents with a variety
of functions to locate
an address, find
nearby facilities, and
access to hundreds of
GIS datasets. New
features in the ArcGIS
10 version include 1960
historical aerial photos,
updated street
network, DEM data,
and integration of new
tax parcel data.
Municipal Critical Infrastructure Systems
Data Development
An infrastructure base
map series has been
created for distribution
to local governments.
Hardcopy maps are
being provided to
engineering and public
works departments to
support maintenance
and long range system
planning. Critical
infrastructure systems
include, public water,
sanitary sewers, and
storm water
components.
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Data Distribution with GeoPDF
Data Development
This project involves the
production of GeoPDF
files by County GIS
staff for distribution to
local governments and
non-GIS users. Users
can turn on/off layers
depending on user
needs as well as “markup” and edit images.
The use of GeoPDF is
popular in many
government program
areas as the files can be
distributed freely and
loaded and viewed on
many types of devices.
The only software
required is Adobe
Acrobat Reader.
Surface Model (DSM)
Data Development
In 2011, GIS
developed new
datasets from LiDAR
data. Along with an
updated elevation
model, this effort
resulted in a first-ever
countywide 1-meter
Surface Model (DSM),
representing the
uppermost surfaces:
rooftops, treetops,
bridges, pavement,
and other features of
the Westchester
landscape. The DSM is
used in land use
planning, delineation
of land cover types,
and 3D visualization.
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LiDAR Data Download (.LAS files)
Internet
In 2011, GIS made
available to the public
nearly 130 GB of highaccuracy data for
direct download from
Mapping Westchester
County online. Any
1,000-meter-square
LAS file contains X, Y,
and Z coordinates for
millions of points,
coded for ‘bare ground’
and other categories.
LAS files can be read
directly in or converted
for several software
programs, including
CAD and other free
viewing utilities for 3D
modeling and
visualization.
Bathymetric Data (Water Depth)
Data Development
Two new data types
were acquired in 2011
representing water
depths in the Hudson
River and Long Island
Sound. Two 1-meter
interval contour
datasets were obtained
from NOAA and the U.S
Geological Survey, while
depth rasters, which are
30-meter grids, were
created by SUNY Stony
Brook and NOAA. Such
datasets are useful in
many public safety
applications.
Page 18
ArcGIS for AutoCAD
Desktop
AutoCAD (Computer
Aided Design) software
is used by many
engineers and
landscape architects.
The ArcGIS for
AutoCAD extension
bridges the gap for
AutoCAD users making
it easier to connect to
GIS datasets. High
resolution aerial
photography, two-foot
contours, parcel data,
and other planimetric
datasets can be
accessed for use in the
AutoCAD design
process.
GIS for Child Protection Services (CPS)
Intranet
GIS has initiated work
with the Department of
Social Services (DSS)
in building a mapping
application for the
Child Protective
Services (CPS)
program. In addition
to containing data on
community facilities
and area
demographics, the
application is intended
to improve service
delivery among DSS
service providers. The
application will be
modified for use in
other County program
areas.
Page 19
Municipal Tax Parcel Viewer
Internet
This application
leverages tax parcel
and assessment data,
providing tools to query
data by address, print
key or owner name.
Users can print maps,
export query results, or
generate mailing labels
needed for an ‘abutters’
notice. Currently, the
viewer is made
available to over 30
municipalities and is
anticipated to expand in
2012. This popular
application was first
deployed in 2010.
Crowd Sourcing Data Collection
Internet
This application allows
internet users to locate
incident data on a
“map” using only a Web
browser. Users can
also add attribute data
and attach photos or
documents (PDF,
Word and videos, etc).
Incident data collected
can be distributed to
other enterprise
applications.
Increasingly popular in
many government
program areas, the
application is scheduled
to be used initially in
Emergency Services.
Page 20
Homeseeker Interactive Mapping
Internet
As part of the County’s
initiative to provide
affordable housing,
GIS staff developed the
Homeseeker application
which shows the
locations of housing
units associated with
the County program.
The application shows
units in context of local
resources, public
transportation,
hospitals, parks, school
districts, post offices,
schools, and other
facilities. Data on floor
plans and housing costs
is also provided.
Police District Locator
Intranet
This application was
originally developed for
staff in Family Court to
determine appropriate
police district
jurisdiction relative to
issuance of Orders of
Protection. It is also
used by the Dept. of
Public Safety and is
anticipated to be made
available to local
agencies in 2012. The
new upgraded version
using new ArcGIS
Server technology has
enhanced features and
improved performance.
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Public Water Distribution System Inventory
Data Development
GIS staff is directing
the inventory and
mapping of all public
water distribution
systems in the County.
The project is being
coordinated with the
Dept. of Emergency
Services, and will
provide detailed
information on key
water system
components and
district boundaries.
Data will support
responses to incidents
or threats to public
water systems.
Environmental Facilities (DEF) Geospatial Viewer
Intranet
Currently in progress,
this application will
provide access to
spatially accurate and
attributed datasets
representing facilities
and infrastructure
maintained by DEF.
‘Find’ tools can be used
to zoom to any address
or intersection. Both
managers and field
crew will be able to
view DEF assets,
respond to
emergencies, and
review both CallBefore-You-Dig
requests and recent
inspection data.
Page 22
Enterprise Geocoding Service (EGS) Web Client
Intranet
This online service uses
the latest GIS
technology and is made
accessible to all County
departments and
agencies. The program
cleans and standardizes
address-based records
and is imbeded in many
County government
intranet and internet
web mapping
applications including
Mapping Westchester
County. EGS is also
central to several public
safety and emergency
response applications,
including the Criminal
Data Warehouse.
Oblique Aerial and Street Level Photography
Data Development
During 2011, GIS staff
managed the
development of two
types of imagery
products (aerial
obliques and street
level photography).
The project supports
local assessment
activities and includes
added return-oninvestment in the
areas of public safety
and local planning.
The oblique imagery is
scheduled to be
integrated with the
County’s E-911
system.
Page 23
Hurricane Inundation Zones
Data Development
Using the County’s
LiDAR data, the U.S.
Army Corps of
Engineers updated flood
zones for each of four
hurricane categories,
and added first-ever
maps of flood depths for
each storm category.
Using complex GIS
spatial analyst tools,
worst-case storm surge
values were generated
to derive “estimated”
depth of water in areas
expected to be flooded.
Data is of particular
importance in
municipalities along the
Long Island Sound.
Spatial Data Warehouse
Internet
Westchester County
provides public access
to hundreds of
important datasets
online, both directly
from the interactive
maps or via
categorical search.
Ongoing work and
enhancements to the
County’s GIS website
also includes
documentation and
instructions on how to
access data through
map services being
published via ArcGIS
Server.
Page 24
Westchester County GIS on the Web
The Westchester County GIS website offers a number of services to the public
including GIS mapping applications and datasets available for download in both
ESRI and Google Earth file formats.
The Service Center provides access to
available mapping tools, websites and other geospatial resources. Users can view
current and past projects, GIS newsletters, maps, and posters. Contact information
relative to GIS Shared Services with local governments is also provided.
In 2011, the website was viewed in 119 countries or territories and in 77
languages.
Page 25
Shared Services: Local Government and School Districts
Beginning in the early 1990’s, Westchester County was one of the first counties in
New York State to establish and implement geospatial programs which provided
GIS outreach to local governments. Since then, Westchester County GIS has been
successful in assisting local governments in building geospatial capacity through a
variety of Shared Services initiatives which is being expanded in 2012 to also
include collaborative work with school districts.
Early efforts by GIS staff under the Shared Services program focused on conducting
user needs studies, data collection, providing assistance with desktop applications,
and “start-up” implementation efforts. While many of these early efforts remain
relative today, 2012 collaborative programs with local governments focus on
strategic geospatial data and application development efforts.
Priority data
development efforts focus on critical infrastructure mapping, tax parcel mapping,
and the delivery of authoritative base map datasets from the proposed Spring 2012
photogrammetric base map update.
Leveraging the county’s built GIS hardware
and software infrastructure, local governments and school districts can gain access
to cost-effective web enabled GIS solutions for data access and viewing.
GIS staff also continues to advocate at both the state and federal level for local
government funded GIS grant programs. County GIS staff proactively represents
local geospatial technology interests as part of the New York State GIS Coordinating
Body, and the New York State GIS Association (www.nysgis.org). Staff routinely
work in concert with consultants and software vendors, particularly ESRI, on behalf
of local governments in providing seminars and demonstrations. Scheduled for
2012 are training opportunities for school districts and local government GIS
personnel, greater access to Westchester County published map services, Software
as a Service (SaaS), and countywide base map data updates.
Through the Shared Services program, Westchester County GIS staff is available to
local governments and school districts to provide:
•
Geospatial data and map services for business applications
•
Desktop GIS support
•
GIS Project Management
Page 26
•
Data development and conversion
•
Tax mapping support and maintenance strategies
•
Data hosting (County GIS Data Warehouse)
•
User Needs Assessments
•
GIS training and education
•
Consultant coordination and recommendations
Local government assistance is provided to nearly all 43 municipalities in
Westchester County.
Page 27
Program Metrics
GIS system metrics provide a means to periodically measure various components of
the County's GIS program.
Such metrics are also commonly referred to as "key
performance indicators". Within the GIS program, quantitative indicators focusing
on web activity, data downloads, software licensing, user training, internal
application usage, annual data maintenance activities, and outreach to local
governments, all provide key statistics and measurements assuring the program's
accountability and demonstrating its value to county government and residents.
For the purpose of establishing baseline metrics to which future assessments can be
compared, key 2011 GIS program metrics include the following:
WEB SERVICES (Intranet and Internet)
GIS Web
GIS Web Pages
# of Visits
Website has been accessed from 119 different countries around the world
in 77 different languages
2011
Data Downloads
2011
# of Downloads
Countywide Download
Base Map Download
Municipal Tax Parcel Download
Total Downloads
GIS INTERNET Applications
# of Views
Municipal Tax Parcel Viewer
Homeseeker Map
GIS INTRANET Applications
# of Views
Optimal Routing Application
PD (Police District) Locator
Sex Offender Address Verification
Spatial Analysis for Public Health
Historic Aerial Photos
Bee-Line Bus Stops & Bus Routes Viewer
Points of Distribution System (PODS)
DOH Septic Management System
Environmental Facilities Geospatial Viewer
100,083
2,764
2,827
7,047
12,638
2011
16,800
669
2011
656
5,761
567
843
440
297
26
346
232
Page 28
PROGRAM SUPPORT
2011
Geo Utilities
Enterprise Geocoding Service
(Function calls)
GeoWebcast
(Calls placed)
Septic Management Program
(Records)
Human Resources Examination Notification Application
Special Needs Registration
(Number of registrants)
Criminal Justice Data Warehouse
(Records processed)
Municipal Government GIS Development
169,724
1,570,547
15,600
4,084
415
865,696
2011
Tax Parcel Viewers
(Municipalities)
Municipal GIS Meetings
ArcReader Projects
(Updated)
On-site ArcReader Training
Municipal Websites linked to Mapping Westchester County
AVL (Vehicle Tracking) Program Support
Public Safety, Corrections and Probation Vehicles
TrimWeb application
(User logins)
Position Records Stored
(Per month, approx)
77
228
103,000
76
89
(Edit requests)
Historic Aerial Photos Georeferencing
1925-26
2011
2011
Emergency Services (60 Control)
Map Correction Requests (MCRs)
Map Requests
35
33
6
1
21
2011
409
(Number of images registered)
GIS Training
2011
Mapping with Google Earth (Municipal)
Mapping with ArcGIS Explorer (Municipal)
Pictometry Software (Municipal)
Pictometry Software (County)
GIS User Group Meetings
Spring User Group Meeting
Fall User Group Meeting @ WCC
25
24
106
61
2011
70
105
Page 29
PROGRAM SUPPORT
Systems Integration
# of Users
GIS Desktop Software by County Departments
Board of Elections
County Airport
District Attorney
Emergency Services/Emergency Operations Center
Environmental Facilities
Information Technology – GIS
Health
Network group
Parks, Recreation and Conservation
Planning
Probation
Public Works – Engineering & Traffic Divisions
Public Safety
Telecom
Tax Commission
Transportation
AutoCAD (DPW & Planning)
(approx # of users)
Total Geospatial Desktop Users
84
2
1
2
10
5
14
6
1
7
12
1
11
4
2
1
5
25
109
GIS DATABASE
User Usage Statistics
This number indicates how many times and how long computers were
connected to the GIS Database
Number of
Connection
Computers
Connections
length (hours)
GIS Servers
148,479
3,435,424
GIS Desktops
22,751
350,956
Total Connections
171,230
3,786,380
GIS Database Storage Space
GIS Databases in ArcSDE and Oracle
Vector Data and 2004 Aerial Photos
2009, 2007 Aerial Photos and DEF
Scanned Images
GIS Standby Database for Emergency
GIS Test Database
Total Disk Space
Allocated Disk
Space (GB)
303.21
Used Disk
Space (GB)
197.48
404
310.87
272.71
246.22
1,226.14
168.26
167.27
843.88
Page 30
ENTERPRISE DEPLOYMENT
System Components
GIS Software Licenses
ArcInfo for IT/GIS, Planning, Emergency Operations and
Departmental Users
ArcView for Health, Planning, Traffic and Departmental
Users
ArcGIS Spatial Analyst
ArcGIS 3D Analyst
ArcGIS Publisher
ArcGIS Network Analyst
ArcGIS Schematics
Geostatistic Analyst
ArcPad for Departmental Users
ArcPad Licenses
2011
Unlimited
Unlimited
Unlimited
Unlimited
Unlimited
Unlimited
Unlimited
Unlimited
7
ArcGIS Engine Runtime Developments and Extensions
Unlimited
Server Licenses
ArcGIS Server (Advanced, Standard, Basic-Workgroup
Enterprise)
ArcGIS Mobile
Unlimited
Unlimited
Software/Database Licenses
NavTeq Data
Pitney Bowes AddressBroker Licenses
Oracle Real Application Clusters
New Atlanta ServerExec
GeoExpress & Express Server (LizardTech)
LiDAR Compressor software
Terra Go (GeoPDF)
Pictometry Software Installs
1
2
12
6
1
1
3
29
System Hardware
Servers
Plotters with large format scanner
PC’s, laptops, PDA’s
GPS units and GPS Camera
41
1
33
7
Page 31
Geospatial Data Layers
Page 32
Geospatial Data Layers (Continued)
Page 33
Geospatial Data Layers (Continued)
Page 34
GIS System Architecture
Page 35
Westchester County GIS
White Plains, New York
Sam Wear
Xiaobo Cui
Dongming Tang
Cindy Marx
Deborah Parker
Zhenglu Zhang
Ilir Tota
Connor Lynch
http://giswww.westchestergov.com
facebook:WestchesterCountyGIS
twitter:WCGIS
Page 36