PowerPoint Presentation
Michael Gurley / John MurnerOregon Office of Emergency
ManagementOctober 14, 2015GIS DATA PREPARATION GIS Data Issues PSAP
Jurisdiction LayerLayers Affecting Location AccuracyA Standard Data
ModelData Improvement TechniquesLooking Beyond Developmentto
Maintenance
What this presentationWILL address What is GISWhat is NG9-1-1Why
is GIS critical in NG9-1-1How a call is routed in NG9-1-1
What this presentationwill NOT address
GIS is important in the current 9-1-1 EnvironmentGIS will
continue to be important in the NextGen EnvironmentOur (collective)
GIS data is not perfectImproving the data is time well spent
Some Things We Can All (Hopefully) Agree On
GIS and Geospatial Technologies Key to Next Generation 9-1-1
Most jurisdictions have adopted GIS data into their operations
over recent years. But, the role of GIS has been as a supporting
piece, not as a key component of the system. This change will
require major rethinking of how GIS data is collected and managed
for most 9-1-1 agencies.
(Thursday, September 29th 2011)
Changing RoleGIS in NextGen
ISSUESIn the past, good GIS data was a nice to have for 9-1-1
Authorities.For NG9-1-1, it is a baseline requirement.Most
organizations do not have GIS data that meets the quality and
content standards outlined by NENA. In some cases data is
degrading.Attitude regarding data status should not be Our data is
good because so-and-so created it but rather an objective
assessment over subjective.More important/alarming is that many
organizations do not have the resources and / or capacity to meet
the GIS requirements for NG9-1-1Staffing & TrainingLittle to no
time to review and update while still perform regular duties.Needed
expertise is dropping with turnover.Too little or too much
complexity in both procedures and software.NG911 Study -
Kentucky
The PSAPs will continue to have a central focus on the
geographical features with their jurisdictionTheir critical
responsibility however, is to recognize that their datasets are no
longer standalone they are part of a much larger mosaic that
collectively represents their state and/or region.
(The Commonwealth of Kentucky, August 1, 2009, NG9-1-1 Standards
Report)We Are Not Alone
NG911 Study - Kentucky
Unlike the previous stages of 9-1-1 services that were centrally
focused on the geography and operations of a single PSAP, NG9-1-1
necessitates the development and implementation of a seamless set
of lines and polygons that span entire states and regions.
(The Commonwealth of Kentucky, August 1, 2009, NG9-1-1 Standards
Report)We Are Not Alone
PSAP Jurisdiction BoundariesCritical for NextGen call
routingIn-demand dataset for wide range of emergency
purposesDerived from Emergency Service ZonesPSAP Jurisdiction
Boundaries
ELIMINATE:GapsOverlapsDuplicate Features
PROCESS:Collect existing dataEvaluateIdentify issuesFacilitate
resolutionEdit dataRoad CenterlinesInvalid or missing attribute
values Duplicate line segment identification Route connectivity
errors (vital for routing analysis) Overlapping address ranges
within the same ESN Site Structure Address PointsInvalid or missing
attribute valuesDuplicate site identification sites with the same
addressParity address issuesSite address does not match to ALI
DatabaseGIS Data Collection and Maintenance StandardsNENA 02-014
Potential RangesNot Split at PSAP BoundaryPSAP APSAP B
500501598599Elm StCall comes in from 524 Elm StLocation
AccuracyPotential RangesSplit at PSAP BoundaryPSAP APSAP B
500501598599Elm StCall comes in from 524 Elm
St549548550551Location AccuracyActual RangesSplit at PSAP
BoundaryPSAP APSAP B
500501528529Elm StCall comes in from 524 Elm
St519518520521Location AccuracyActual RangesSplit at PSAP
BoundaryAddress Points on structurePSAP APSAP B500501528529Elm
StCall comes in from 524 Elm St519518520521
Location AccuracyPSAP APSAP B500501528529Location and RoutingElm
St519518520521
PSAP CWhy is this important?Location Accuracy
Look familiar?STANDARDIZATION
THIS?OR THIS?Road CenterlinesSite Structure Address
PointsEmergency Service ZonesPSAP BoundariesRoad Alias TableGIS
Data Model
Normalization of location data (addresses)
GIS Data ModelDATA IMPROVEMENTNENA 71-501
DATA IMPROVEMENTMake sure the MSAG and ALI database are in sync
with the GIS data. SYNCHRONIZE!DATA IMPROVEMENTDATA
IMPROVEMENTStandardize Address ComponentsRun ComparisonsDetermine
where fallout occursInvestigate DiscrepanciesCorrect Errors
DATA IMPROVEMENT
MAINTENANCE
This is fun and all, but when can I get off the GIS Data
Maintenance Merry-Go-Round?MAINTENANCE
MAINTENANCE
MAINTENANCEQA / QC ChecksGIS Data Placed on-line in ECRFIncoming
Discrepancy Reports
(Requires GIS Corrections)GIS Base Data
(Development & Maintenance)Its all so overwhelming!What do
we do?
DATA IMPROVEMENTDATA IMPROVEMENTPrioritizeSet achievable
goalsDont chase squirrelsBreak down the silosBe innovativeBeg,
Borrow, Steal
DATA IMPROVEMENT
QUESTIONSMichael Gurley9-1-1 GIS
[email protected]
John Murner9-1-1 GIS Database [email protected]
