CMAP ITS Architecture v4.0

SAE J2735: Dedicated Short Range Communications (DSRC) Message Set Dictionary

Source Element	Destination Element	Flow
Chicago Transit Authority ATSS System	Chicago Transit Authority Active Transit Station Signs	transit traveler information
	Chicago Transit Authority Bus Vehicles	transit traveler information
	Chicago Transit Authority BusInfo Signs	transit traveler information
Chicago Transit Authority Bus Info System	Chicago Transit Authority Bus Vehicles	transit traveler information
	Chicago Transit Authority BusInfo Signs	transit traveler information
Chicago Transit Authority Bus Vehicles	Chicago Transit Authority Bus Info System	transit vehicle location data
	Chicago Transit Authority Control Center	transit vehicle location data
	City of Chicago OEMC Field Equipment	local signal priority request
	Cook County Department of Transportation and Highways Field Equipment	local signal priority request
	IDOT District 1 Bureau of Traffic – Arterial Operations Field Equipment	local signal priority request
Chicago Transit Authority Cash Revenue Collection Center	Chicago Transit Authority Cash Fare Collection Equipment	transit traveler information
Chicago Transit Authority Control Center	Chicago Transit Authority Bus Vehicles	transit traveler information
	Chicago Transit Authority Rapid Transit Vehicles	transit traveler information
	RTA InfoTrans Signs	transit traveler information
Chicago Transit Authority Rapid Transit Vehicles	Chicago Transit Authority Control Center	transit vehicle location data
City of Chicago DOT Transportation Website	User Personal Computing Devices	broadcast traveler information
City of Chicago OEMC Field Equipment	Vehicles	intersection status
Gateway TravelMidwest Website	User Personal Computing Devices	broadcast traveler information
IDOT District 1 Bureau of Traffic – Arterial Operations Field Equipment	Vehicles	intersection status
IDOT District 1 ComCenter	Vehicles	broadcast traveler information
IDOT District 1 Traffic Systems Center Field Equipment	Vehicles	vehicle signage data
IDOT Emergency Traffic Patrol Vehicles	IDOT District 1 ComCenter	emergency vehicle tracking data
	IDOT Emergency Traffic Patrol (ETP)	emergency vehicle tracking data
IDOT Maintenance Vehicles	IDOT District 1 ComCenter	work zone status
	IDOT District 1 Maintenance Management	work zone status
IDOT Transportation Information Websites	IDOT District 1 ComCenter	emergency traveler information
Illinois State Police Vehicles	Illinois State Police Dispatch (Districts 2, 5 and Chicago)	emergency vehicle tracking data
	Illinois State Police District 15 Operations Desk	emergency vehicle tracking data
Illinois Tollway Highway Emergency Lane Patrol Vehicles	Illinois Tollway Computer Aided Dispatch Center	emergency vehicle tracking data
Illinois Tollway Maintenance Vehicle	Illinois Tollway Maintenance and Construction	work zone status
	Illinois Tollway Maintenance and Construction	work zone warning status
Illinois Tollway TMC (TIMS)	User Personal Computing Devices	broadcast traveler information
	Vehicles	broadcast traveler information
Metra Consolidated Control Facility	Metra Public Address System	transit traveler information
	Metra Trains	transit traveler information
Metra GPS Center (TIMS)	Metra Public Address System	transit traveler information
	Metra Visual Information Display System (VIDS)	transit traveler information
Metra Passenger Information Display System	Metra Public Address System	transit traveler information
	Metra Visual Information Display System (VIDS)	transit traveler information
Metra Trains	Metra Consolidated Control Facility	transit vehicle location data
	Metra GPS Center (TIMS)	transit vehicle location data
Municipal Public Safety Vehicles	City of Chicago OEMC Field Equipment	local signal preemption request
	Cook County Department of Transportation and Highways Field Equipment	local signal preemption request
	IDOT District 1 Bureau of Traffic – Arterial Operations Field Equipment	local signal preemption request
	Kane County Field Equipment	local signal preemption request
	Lake County Field Equipment	local signal preemption request
OHare Airport Operations Center	IDOT District 1 ComCenter	restricted lanes application info
Pace BusInfo System	Pace BusInfo Signs	transit traveler information
	Pace Transit Bus Vehicles	transit traveler information
Pace Control Center (IBS)	Pace Transit Bus Vehicles	transit traveler information
Pace Paratransit Vehicles	Pace Control Center (IBS)	transit vehicle location data
	Pace Regional Paratransit Dispatch	transit vehicle location data
Pace Regional Paratransit Dispatch	Pace Paratransit Vehicles	transit traveler information
Pace Transit Bus Vehicles	City of Chicago OEMC Field Equipment	local signal priority request
	Cook County Department of Transportation and Highways Field Equipment	local signal priority request
	IDOT District 1 Bureau of Traffic – Arterial Operations Field Equipment	local signal priority request
	Kane County Field Equipment	local signal priority request
	Lake County Field Equipment	local signal priority request
	Pace Control Center (IBS)	transit vehicle location data
	Pace Regional Paratransit Dispatch	transit vehicle location data
Private ISPs – Travel Information Services	User Personal Computing Devices	broadcast traveler information
Regional Transportation Authority Travel Information Center (TIC)	User Personal Computing Devices	broadcast traveler information
RTA Transit Hub	Chicago Transit Authority Active Transit Station Signs	transit traveler information
	Chicago Transit Authority BusInfo Signs	transit traveler information
	Metra Public Address System	transit traveler information
	Metra Visual Information Display System (VIDS)	transit traveler information
	Pace BusInfo Signs	transit traveler information
	RTA InfoTrans Signs	transit traveler information
	User Personal Computing Devices	broadcast traveler information
Will County Sheriff Vehicles	Will County Sheriff Communications Center	emergency vehicle tracking data