
288 Cyber-Physical Systems: From Theory to Practice
Browser
Gmaps
Gcharts
Route
guidance
Virtual
wall
Virtual
wall
prepare
Web portal server
Utility
portlets
Admin
portlet
Vehicle
track
portlet
Virtual
wall
portlet
ITC
portlet
Route
guidance
portlet
Vehicle
tracking
Vehicle
track
info
Traffic
simulation
GIS
Data access layer
Databases
Data Mapper services
Freeway data Image, CMS data
Hardware access services
Legacy ITS applications
Video
grabber/
encode
Hardware
Video camera, WiFi-BT equipment, etc.
MTO, City of Toronto, etc.
Data grabber
services
Data grabbers
External databases
Arterial data
Freeway
performance
evaluation
Arterial
performance
evaluation
CMS
status
info
Ramp
flow
evaluation
Corridor
optimization ...