Source Element
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Destination Element
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Flow Name
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Flow Description
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Local RSU
|
Local Traffic Detector
|
personal location
information
|
Pedestrian, bicyclist, and other non-motorized user
locations at an intersection as detected and reported
by an RSE.
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signal service request
|
A call for service or extension for a signal control
phase that is issued by the RSE for connected vehicles
approaching an intersection and/or pedestrians at a
crosswalk. This flow identifies the desired phase and
service time.
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Local Traffic Detector
|
Local RSU
|
intersection control status
|
Status data provided by the traffic signal controller
including phase information, alarm status, and
priority/preempt status.
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mixed use crossing status
|
Current pedestrian and other mixed use crossing
information including an indication of whether the call
button has been activated, the current state of the
mixed use crossing signal, and information indicating
whether non-motorized users are currently occupying
the cross walk.
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Local RSU
|
Smartphone
|
intersection status
|
Current signal phase and timing information for all
lanes at a signalized intersection. This flow identifies
active lanes and lanes that are being stopped and
specifies the length of time that the current state will
persist for each lane. It also identifies signal priority
and preemption status and pedestrian crossing status
information where applicable.
|
|
|
personal crossing safety
information
|
Current crossing status including permission to cross,
crossing time remaining, and warnings in the event
that a vehicle reports an imminent intersection
infringement that may impact non-motorized users
including pedestrians and cyclists.
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Smartphone
|
Local RSU
|
personal location
|
The current location (latitude, longitude, and
elevation) reported by the personal information
device
|
|
|
personal signal service
request
|
A request for right of way from a personal device that
indicates the type of traveler (pedestrian, special
needs pedestrian, bicyclist, etc.), anticipated time of
arrival, travel path, and crossing duration.
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|
Local RSU
|
C-MobILE Vehicle
|
intersection status
|
Current signal phase and timing information for all
lanes at a signalized intersection. This flow identifies
active lanes and lanes that are being stopped and
specifies the length of time that the current state will
persist for each lane. It also identifies signal priority
and preemption status and pedestrian crossing status
information where applicable.
|
|
|
intersection safety warning
|
A warning of an imminent unsafe vehicle infringement
at an intersection that may endanger other vehicles or
pedestrians. This allows vehicles approaching the
intersection to be warned in the event of an imminent
red light or stop sign violation or potential
infringement on an occupied crosswalk. All connected
vehicles at the intersection receive the warning,
including both the infringing vehicle and other
vehicles at or near the intersection.
|
|
|
proxied personal location
|
Relay of pedestrian, bicyclist, and other
non-motorized user locations at an intersection. This
relay or rebroadcast of personal locations supports
coordination between motorized and non-motorized
users that do not have interoperable communications
capability.
|
|
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|
C-MobILE Vehicle
|
Local RSU
|
vehicle location and motion
|
Data describing the vehicle's position, heading, speed,
acceleration, transmission, steering wheel angle,
braking status, size information, and trajectory.
|
|
|
intersection infringement
info
|
Vehicle path information sent by a vehicle that is
violating the stop bar at an intersection. This flow
includes the vehicle’s position, heading, speed,
acceleration, transmission, steering-wheel angle,
braking status, size information and trajectory.
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|
Smartphone
|
C-MobILE Vehicle
|
personal location
|
The current location (latitude, longitude, and
elevation) reported by the personal information
device
|
|
|
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|
C-MobILE Vehicle
|
Smartphone
|
vehicle location and motion
|
Data describing the vehicle's position, heading, speed,
acceleration, transmission, steering wheel angle,
braking status, size information, and trajectory.
|