CMAP ITS Architecture v4.0

ISO 19091: Intelligent transport systems -- Cooperative ITS -- Using V2I and I2V communications for applications related to signalized intersections

Source Element	Destination Element	Flow
Chicago Transit Authority 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
City of Chicago OEMC Field Equipment	Vehicles	intersection status
IDOT District 1 Bureau of Traffic – Arterial Operations Field Equipment	Vehicles	intersection status
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
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