Providing First Responders Critical Real-Time GIS and AVL
InformationPaper UC1566
Presented By: David Blankinship, Steve Harris, Edward Kolarik and Thomas Wrobel of the CSFD
The Major Components of Our System
• On-board GPS
• Communications network.
• Mapping data.
• Interface to 911 CAD system.
• Routing and traffic signal preemption engines.
• In-vehicle computer and display.
• SQL database server.
• Web based viewer.
AVL CentralSystem
900 MHz
Pre
em
pti
on
CAD
Call Info. Call Info.
GPS
CSFD
© C o p y rig h t 1 9 9 6 G a la ctic S o ftw a re . A ll R ig h ts R e se rve d .
Routing and Traffic Signal Preemption Engines
•Determine location of 911 calls for service.– Attempts to determine “exact” location
of call.– Defaults to Geocoding if “exact” location
not found.– Uses Map Page grid data for validation.
4665 Paramount PlGeocoding Example
Exact Location Geocoding Location
•Optimal route considerations.– Street segment
impendence data.– Turn penalties.– Call on left or right side
of street.– Time of day/day of
week.
Routing and Traffic Signal Preemption Engines
•Traffic signal preemption– Identifies traffic
signals to preempt along route.
– When possible limits green signal to fire vehicle’s path only
– Timing based on vehicle’s speed.
Routing and Traffic Signal Preemption Engines
Web Based Viewer
•Flash Client allows for viewing of AVL mapping data from the Internet.
•Common Operational Picture
• Incident Management
•Does not require special loading of software on computer (other than Macromedia Flash Client).
•Cost effective.
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