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Service Description: Since 2015, the Public Service Communication Board, VITA Integrated Services Program staff, and staffs
from public safety answering points (PSAPs) have been planning and implementing the deployment of
Next Generation 9-1-1 (NG911) for the Commonwealth. Transitioning from the legacy
telecommunication network provides numerous benefits and flexibility looking towards the future. As
the emergency services internet protocol network (ESInet) is deployed, geospatial call routing uses
geographic information system (GIS) data and the 911 caller’s location information to identify which
PSAP will receive the call.
The process of geospatial call routing relies on the civic address layers (address points and road center
line maintained by the localities) and a GIS layer representing PSAP boundaries for the operations area
for each PSAP. The PSAP boundary file must ensure that every square foot of the Commonwealth is
assigned to one and only one PSAP. There can be no gaps or overlaps. PSAPs sharing boundaries with
neighboring states must also meet this same rigor to ensure efficient and consistent delivery of every
911 call initiated.
Map Name: NG911_PSAP_Line_Geometry
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Description: Since 2015, the Public Service Communication Board, VITA Integrated Services Program staff, and staffs
from public safety answering points (PSAPs) have been planning and implementing the deployment of
Next Generation 9-1-1 (NG911) for the Commonwealth. Transitioning from the legacy
telecommunication network provides numerous benefits and flexibility looking towards the future. As
the emergency services internet protocol network (ESInet) is deployed, geospatial call routing uses
geographic information system (GIS) data and the 911 caller’s location information to identify which
PSAP will receive the call.
The process of geospatial call routing relies on the civic address layers (address points and road center
line maintained by the localities) and a GIS layer representing PSAP boundaries for the operations area
for each PSAP. The PSAP boundary file must ensure that every square foot of the Commonwealth is
assigned to one and only one PSAP. There can be no gaps or overlaps. PSAPs sharing boundaries with
neighboring states must also meet this same rigor to ensure efficient and consistent delivery of every
911 call initiated.
Copyright Text: Virginia Geographic Information Network (VGIN)
Spatial Reference:
4326
(4326)
Single Fused Map Cache: false
Initial Extent:
XMin: -84.21545327818133
YMin: 34.48560654003103
XMax: -74.9054327209813
YMax: 41.309662280012304
Spatial Reference: 4326
(4326)
Full Extent:
XMin: -83.67548231799998
YMin: 36.535022000000026
XMax: -75.18701983899996
YMax: 39.46609426100008
Spatial Reference: 4326
(4326)
Units: esriDecimalDegrees
Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP
Document Info:
Title: PSAP Line Geometry
Author:
Comments: Since 2015, the Public Service Communication Board, VITA Integrated Services Program staff, and staffs
from public safety answering points (PSAPs) have been planning and implementing the deployment of
Next Generation 9-1-1 (NG911) for the Commonwealth. Transitioning from the legacy
telecommunication network provides numerous benefits and flexibility looking towards the future. As
the emergency services internet protocol network (ESInet) is deployed, geospatial call routing uses
geographic information system (GIS) data and the 911 caller’s location information to identify which
PSAP will receive the call.
The process of geospatial call routing relies on the civic address layers (address points and road center
line maintained by the localities) and a GIS layer representing PSAP boundaries for the operations area
for each PSAP. The PSAP boundary file must ensure that every square foot of the Commonwealth is
assigned to one and only one PSAP. There can be no gaps or overlaps. PSAPs sharing boundaries with
neighboring states must also meet this same rigor to ensure efficient and consistent delivery of every
911 call initiated.
Subject: The intended use of this data layer is for publishing a PSAP polygon as deemed mandatory by the National Emergency Number Association (NENA).
Category:
Keywords: VGIN,NGSB,NG9-1-1,NENA,PSAP
AntialiasingMode: Fast
TextAntialiasingMode: Force
Supports Dynamic Layers: true
Resampling: false
MaxRecordCount: 2000
MaxImageHeight: 4096
MaxImageWidth: 4096
Supported Query Formats: JSON, geoJSON, PBF
Supports Query Data Elements: true
Min Scale: 0
Max Scale: 0
Supports Datum Transformation: true
Child Resources:
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