GIS and Next Generation GIS and Next Generation Public SafetyPublic Safety

Norman H. Forshee, Norman H. Forshee,

911 Coordinator911 Coordinator

St Clair County ETSBSt Clair County ETSB

What is Next Generation 911?What is Next Generation 911?

Modern advancements in Modern advancements in communications technology require communications technology require a more advanced 911 systema more advanced 911 system

Emphasis on wireless and IP-based Emphasis on wireless and IP-based communicationcommunication

Next generation 911 system should Next generation 911 system should respond anytime, anywhere, from respond anytime, anywhere, from any deviceany device

911 PSAPs Will Become 911 PSAPs Will Become Emergency Communications HubsEmergency Communications Hubs

In addition to traditional 911 callers, there In addition to traditional 911 callers, there are:are:• Approximately 180 million cell phone Approximately 180 million cell phone

subscriberssubscribers• Trucks with GPS and communications systemsTrucks with GPS and communications systems• Devices that can provide additional data to the Devices that can provide additional data to the

PSAP such as text messages, pictures, and PSAP such as text messages, pictures, and videosvideos

• Increasing numbers of voice over IP (VoIP) Increasing numbers of voice over IP (VoIP) telephone subscriberstelephone subscribers

PSAP Gateway

i3 PSAP

Government Services Functions

Emergency Responder

Service Function(s)

Emergency ServicesRouting Proxy

i3 PSAP

SIP/H.323 clients

Wireless client

Selective Router

PureLegacy PSAP

IP PSAP

Location Determination

/Acquisition Functions

Wireline andWireless Call

SourcesExisting interconnection

InternetIP router

IM client

Location Validation Function

LIS(s)

IP Originated Public Access

Networks

Emergency ServicesIP network

Database Services

Location Validation/

Routing Data

Location Validation/

Routing Database(s)

Emergency Call Routing Function(s)

Web sourcedDatabaseServices

Database Services

SR Gateway

Firewall

Public Web Services

Private Web

Services

DNS

Root Discovery Services

Media Services

Telematics Calls

E911 Gateway

Legacy PSAP w/ IP

Routing Control

Various Call Sources through NG9-1-1 at

start of transition

(becomes IP)

Next Generation 911 SystemNext Generation 911 System

Next Generation 911 Relies on GISNext Generation 911 Relies on GIS

Static street addresses do not apply Static street addresses do not apply to wireless and IP-based devicesto wireless and IP-based devices

Lat/long coordinates now define a Lat/long coordinates now define a callers locationcallers location

GIS for X/Y Routing of 911 CallsGIS for X/Y Routing of 911 Calls

GIS boundary files determine which 911 GIS boundary files determine which 911 call center will receive a call based on the call center will receive a call based on the associated lat/long coordinatesassociated lat/long coordinates

911 Call with Lat/Long Coordinates

Call Delivered to Comm Center in that Jurisdiction

Database Provider with GIS Data for

Jurisdictional Boundaries

Coordinates Plotted over Boundaries

911 Telecommunicators Need GIS 911 Telecommunicators Need GIS to Interpret Caller Locationto Interpret Caller Location

Lat/long coordinates are not easily Lat/long coordinates are not easily interpreted like a street address isinterpreted like a street address is

Plotting the coordinates using GIS Plotting the coordinates using GIS with other reference data allows for with other reference data allows for easy interpretation of relative easy interpretation of relative locationlocation

Responding agencies can also this Responding agencies can also this access real time location dataaccess real time location data

Future ConsiderationsFuture Considerations

National routing database program National routing database program for X/Y routingfor X/Y routing

Standardization and local control Standardization and local control over jurisdictional boundaries on a over jurisdictional boundaries on a large scalelarge scale

Data standards with gap/overlap Data standards with gap/overlap monitoring between jurisdictionsmonitoring between jurisdictions