Oki Vehicle Alarm User Manual

Architecture Flow Descriptions

Architecture Flow Description

alarm Information about a Commercial Vehicle or Freight Equipment breach, non-

alarm acknowledge Confirmation that alarm was received, instructions and additional information

alarm notification Notification of activation of an audible or silent alarm by a traveler in a public

alert notification Notification of a major emergency such as a natural or man-made disaster,

alert notification coordination Coordination of emergency alerts to be distributed to the public. This includes

alert status Information indicating the current status of the emergency alert including

alerts and advisories Assessments (general incident and vulnerability awareness information),

alerts and advisories_ud Assessments (general incident and vulnerability awareness information),

amber alert confirmation_ud The confirmation that the amber alert message was received, and the current

amber alert_ud Amber alert information. Can be placed on dynamic message signs controlled

archive coordination Catalog data, meta data, published data, and other information exchanged

archive requests A request to a data source for information on available data (i.e. "catalog") or a

archive status Notification that data provided to an archive contains erroneous, missing, or

border incident response status Status of the current incident response at a border crossing, including a

border information archive data Border inspection activities data. Content may include a catalog of available

broadcast traveler information General traveler information that contains traffic and road conditions, link travel

permitted security sensitive hazmat detected at the roadside, route deviation,
or Commercial Vehicle Driver / Commercial Vehicle / Freight Equipment
assignment mismatches which includes the location of the Commercial
Vehicle and appropriate identities.

for the alarm initiator, and requests for additional information.

area or by a transit vehicle operator using an on-board device.

civil emergency, or child abduction for distribution to the public. The flow
identifies the alert originator, the nature of the emergency, the geographic area
affected by the emergency, the effective time period, and information and
instructions necessary for the public to respond to the alert. This flow may
also identify specific information that should not be released to the public.

notification of a major emergency such as a natural or man-made disaster, civil
emergency, or child abduction for distribution to the public and status of the
public notification.

identification of the traveler and driver information systems that are being used
to provide the alert.

advisories (identification of threats or recommendations to increase
preparedness levels), and alerts (information on imminent or in-progress
emergencies). This flow also provides supporting descriptive detail on
incidents, threats, and vulnerabilities to increase preparedness and support
effective response to threats against the surface transportation system.

advisories (identification of threats or recommendations to increase
preparedness levels), and alerts (information on imminent or in-progress
emergencies). This flow also provides supporting descriptive detail on
incidents, threats, and vulnerabilities to increase preparedness and support
effective response to threats against the surface transportation system.

status of the amber alert.

by a traffic management element.

between archives to support data synchronization and satisfy user data
requests.

request that defines the data to be archived. The request can be a general
subscription intended to initiate a continuous or regular data stream or a
specific request intended to initiate a one-time response from the recipient.

suspicious data or verification that the data provided appears valid. If an error
has been detected, the offending data and the nature of the potential problem
are identified.

summary of incident status and its impact on the transportation system, traffic
management strategies implemented at the site (e.g., closures, diversions,
traffic signal control overrides), and current and planned response activities.

information, the actual information to be archived, and associated meta data
that describes the archived information.

times, incidents, advisories, transit service information, weather information,
parking information, and other related traveler information.

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Architecture Flow Descriptions

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Architecture Flow Description

care facility status Information regarding facility type and capabilities, facility status, and its ability

care facility status request Request for information regarding care facility availability and status.
citation Report of commercial vehicle citation. The citation includes references to the

credentials information Response containing full vehicle fuel tax and registration credentials

credentials status information Credentials information such as registration, licensing, insurance, check flags,

current asset restrictions Restrictions levied on transportation asset usage based on infrastructure

CVO driver initialization This flow represents the tactile or auditory interface with ITS equipment

CVO pass/pull-in message This flow represents the visual or auditory interface with ITS equipment

daily site activity data Record of daily activities at commercial vehicle check stations including

decision support information Information provided to support effective and safe incident response, including

demand response passenger and use data Data collected on board a demand response vehicle relating to the picking up

demand responsive transit plan Plan regarding overall demand responsive transit schedules and deployment.
demand responsive transit request Request for paratransit support.
driver information General advisory and traffic control information provided to the driver while en

driver parking information Presentation of general parking information to drivers including lot status,

electronic screening request Request for identification data to support electronic screening.
emergency archive data Logged emergency information including information that characterizes

emergency dispatch requests Emergency vehicle dispatch instructions including incident location and

emergency dispatch response Request for additional emergency dispatch information and provision of en

to admit new patients.

statute(s) that was (were) violated. It includes information on the violator and
the officer issuing the citation. A citation differs from a violation because it is
adjudicated by the courts. The information may be provided as a response to
a real-time query or proactively by the source. The query flow is not explicitly
shown.

information. "Response" may be provided in reaction to a real-time query or a
standing request for updated information. The query flow is not explicitly
shown.

and electronic screening enrollment data. A unique identifier is included.
Corresponds to the credentials portion of CVISN "snapshots." The status
information may be provided as a response to a real-time query or as a result
of a standing request for updated information (subscription). This may also
include information about non-U.S. fleets for use by U.S. authorities, and
information regarding U.S. fleets made available to Mexican and Canadian
authorities. The query flow is not explicitly shown.

design, surveys, tests, or analyses. This includes standard facility design
height, width, and weight restrictions, special restrictions such as spring weight
restrictions, and temporary facility restrictions that are imposed during
maintenance and construction.

containing the commercial vehicle driver and vehicle information. This flow
contains inquiries to the commercial vehicle managing system.

containing a message sent to commercial vehicle driver indicating whether to
bypass or requesting pull in to inspection/verification stop along with
inspection results (e. g., LED indicator on transponder or variable message
sign).

summaries of screening events and inspections.

local traffic, road, and weather conditions, hazardous material information, and
the current status of resources that have been allocated to an incident.

and discharging of passengers.

route.

parking availability, and directions to available spaces, entrances, and exits.

identified incidents (routine highway incidents through disasters),
corresponding incident response information, evacuation information,
surveillance data, threat data, and resource information. Content may include
a catalog of available information, the actual information to be archived, and
associated meta data that describes the archived information.

available information concerning the incident.

route status.

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Architecture Flow Descriptions

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Architecture Flow Description

emergency plan coordination Information that supports coordination of emergency management plans,

emergency traffic control information Status of a special traffic control strategy or system activation implemented in

emergency traffic control request Special request to preempt the current traffic control strategy in effect at one or

emergency transit schedule information Information on transit schedule and service changes that adapt the service to

emergency transit service request Request to modify transit service and fare schedules to address emergencies,

emergency transit service response Response indicating changes to transit service, fares, and/or restrictions that

emergency traveler information Public notification of an emergency such as a natural or man-made disaster,

emergency traveler information request Request for alerts, evacuation information, and other emergency information

emergency vehicle tracking data The current location and operating status of the emergency vehicle.
environmental conditions data Current road conditions (e.g., surface temperature, subsurface temperature,

environmental conditions data status Status of the data quality of environmental conditions data provided by a data

environmental probe data Data from vehicle safety and convenience systems that can be used to

environmental sensor data Current road conditions (e.g., surface temperature, subsurface temperature,

environmental sensors control Data used to configure and control environmental sensors.

continuity of operations plans, emergency response and recovery plans,
evacuation plans, and other emergency plans between agencies. This
includes general plans that are coordinated prior to an incident and shorter
duration tactical plans that are prepared during an incident.

response to an emergency traffic control request, a request for emergency
access routes, a request for evacuation, a request to activate closure systems,
a request to employ driver information systems to support public safety
objectives, or other special requests. Identifies the selected traffic control
strategy and system control status.

more signalized intersections or highway segments, activate traffic control and
closure systems such as gates and barriers, activate safeguard systems, or
use driver information systems. For example, this flow can request all signals
to red-flash, request a progression of traffic control preemptions along an
emergency vehicle route, request a specific evacuation traffic control plan,
request activation of a road closure barrier system, or place a public safety or
emergency-related message on a dynamic message sign.

better meet needs of responders and the general public in an emergency
situation, including special service schedules supporting evacuation.

including requests for transit services to evacuate people from and/or deploy
response agency personnel to an emergency scene. The request may poll for
resource availability or request pre-staging, staging, or immediate dispatch of
transit resources.

will be made and status of transit resources to be deployed to support
emergency response and/or evacuation.

civil emergency, or child abduction. This flow also includes evacuation
information including evacuation instructions, evacuation zones,
recommended evacuation times, tailored evacuation routes and destinations,
traffic and road conditions along the evacuation routes, traveler services and
shelter information, and reentry times and instructions.

provided to the traveling public.

moisture, icing, treatment status) and surface weather conditions (e.g., air
temperature, wind speed, precipitation, visibility) as measured and reported by
fixed and/or mobile environmental sensors and aggregated by the data
collector. Attributes relating to the data collection (and aggregation) are also
included.

contributor. Includes not only status by sensor, but statistical data regarding
the quality checking of data provided.

estimate environmental conditions, including measured air temperature,
exterior light status, wiper status, sun sensor status, rain sensor status,
traction control status, anti-lock brake status, and other collected vehicle
system status and sensor information. The collected data is reported along
with the location, heading, and time that the data was collected. Both current
data and snapshots of recent events (e.g., traction control or anti-lock brake
system activations) may be reported.

moisture, icing, treatment status) and surface weather conditions (e.g., air
temperature, wind speed, precipitation, visibility) as measured and reported by
fixed and/or mobile environmental sensors. Operational status of the sensors
is also included.

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Architecture Flow Descriptions

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Architecture Flow Description

equipment availability An inventory of the maintenance and construction equipment available at the

equipment maintenance status Current status of field equipment maintenance actions.
evacuation coordination Coordination of information regarding a pending or in-process evacuation.

evacuation information Evacuation instructions and information including evacuation zones,

event plans Plans for major events possibly impacting traffic.
external reports Traffic and incident information that is collected by the media through a variety

fare collection data Fare collection information including the summary of on-board fare system

field device status Reports from field equipment (sensors, signals, signs, controllers, etc.) which

field equipment status Identification of field equipment requiring repair and known information about

freeway control data Control commands and operating parameters for ramp meters, mainline

freeway control status Current operational status and operating parameters for ramp meters, mainline

hazmat information Information about a particular hazmat load including nature of the load and

hazmat information request Request for information about a particular hazmat load.
hazmat spill notification_ud
hri advisories Notification of Highway-Rail Intersection equipment failure, intersection

hri control data Data required for HRI information transmitted at railroad grade crossings and

hri operational status Status of the highway-rail grade crossing equipment including both the current

hri request A request for highway-rail intersection status or a specific control request

hri status Status of the highway-rail intersection equipment including both the current

incident command information coordination Information that supports local management of an incident. It includes

incident information Notification of existence of incident and expected severity, location, time and

incident information for media Report of current desensitized incident information prepared for public

incident report Report of an identified incident including incident location, type, severity and

storage facility. This flow includes the type of equipment, enough descriptive
information to indicate its suitability for use, and its current status. This flow
may contain information for a specific type of equipment or include all
equipment available at the facility.

Includes evacuation zones, evacuation times, evacuation routes, forecast
network conditions, and reentry times.

evacuation times, and reentry times.

of mechanisms (e.g., radio station call-in programs, air surveillance).

data and financial payment transaction data.

indicate current operational status.

the associated faults.

metering/lane controls and other systems associated with freeway operations.

metering/lane controls and other control equipment associated with freeway
operations.

unloading instructions. May also include hazmat vehicle route and route
update information.

blockage, or other condition requiring attention, and maintenance activities at
or near highway rail intersections.

within railroad operations.

state or mode of operation and the current equipment condition.

intended to modify HRI operation.

state or mode of operation and the current equipment condition.

resource deployment status, hazardous material information, traffic, road, and
weather conditions, evacuation advice, and other information that enables
emergency or maintenance personnel in the field to implement an effective,
safe incident response.

nature of incident. As additional information is gathered and the incident
evolves, updated incident information is provided. Incidents include any event
that impacts transportation system operation ranging from routine incidents
(e.g., disabled vehicle at the side of the road) through large-scale natural or
human-caused disasters that involve loss of life, injuries, extensive property
damage, and multi-jurisdictional response. This also includes special events,
closures, and other planned events that may impact the transportation system.

dissemination through the media.

other information necessary to initiate an appropriate incident response.

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Architecture Flow Descriptions

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Architecture Flow Description

incident response coordination Incident response procedures and current incident response status that are

incident response status Status of the current incident response including a summary of incident status

incident status Information gathered at the incident site that more completely characterizes

information on violators Information on violators provided by a law enforcement agency. May include

infrastructure monitoring sensor control Data used to configure and control infrastructure monitoring sensors.
infrastructure monitoring sensor data Data read from infrastructure-based sensors that monitor the condition or

interactive traveler information Traveler information that is customized based upon traveler requests or

ISP coordination Coordination and exchange of transportation information between centers.

local signal preemption request Direct control signal or message to a signalized intersection that results in

local signal priority request Request from a vehicle to a signalized intersection for priority at that

maint and constr dispatch information Information used to dispatch maintenance and construction vehicles,

maint and constr dispatch status Current maintenance and construction status including work data, operator

maint and constr equipment repair status Current maintenance and repair status of the maintenance and construction

maint and constr fleet information Information supporting maintenance of the maintenance and construction

maint and constr resource coordination Request for road maintenance and construction resources that can be used in

maint and constr resource request Request for road maintenance and construction resources that can be used in

shared between allied response agencies to support a coordinated response
to incidents. This flow provides current situation information, including a
summary of incident status and its impact on the transportation system and
other infrastructure, and current and planned response activities. This flow
also coordinates a positive hand off of responsibility for all or part of an
incident response between agencies.

and its impact on the transportation system, traffic management strategies
implemented at the site (e.g., closures, diversions, traffic signal control
overrides), and current and planned response activities.

the incident and provides current incident response status.

information about commercial vehicle violations or other kinds of violations
associated with the particular entity. The information may be provided as a
response to a real-time query or proactively by the source. The query flow is
not explicitly shown.

integrity of transportation infrastructure including bridges, tunnels,
interchanges, pavement, culverts, signs, transit rail or guideway, and other
roadway infrastructure. Includes sensor data and the operational status of the
sensors.

traveler profiles. The information is comprised of traffic and road conditions,
advisories, incidents, payment information, transit services, parking
information, weather information, and other travel-related data updates and
confirmations.

This flow allows a broad range of transportation information collected by one
ISP to be redistributed to many other ISPs and their clients.

preemption of the current control plan and grants right-of-way to the requesting
vehicle.

intersection.

equipment, and crews and information used to keep work zone crews
informed. This information includes routing information, traffic info r m ation,
road restrictions, incident information, environmental information, decision
support information, maintenance schedule data, dispatch instructions,
personnel assignments, alert notifications, and corrective actions.

status, crew status, and equipment status.

vehicle fleet and other support equipment. This information includes a record
of all maintenance and repair activities performed.

vehicle fleet and other support equipment. This information includes vehicle
status and diagnostic information, vehicle utilization, and coordination of when
vehicles will be available for preventative and corrective maintenance.

the diversion of traffic (cones, portable signs), clearance of a road hazard,
repair of ancillary damage, or any other incident response.

the diversion of traffic (cones, portable signs), clearance of a road hazard,
repair of ancillary damage, or any other incident response. The request may
poll for resource availability or request pre-staging, staging, or immediate
dispatch of resources.

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Architecture Flow Descriptions

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Architecture Flow Description

maint and constr resource response Current status of maintenance and construction resources including availability

maint and constr vehicle conditions Vehicle diagnostics information that is collected, filtered, and selectively

maint and constr vehicle location data The current location and related status (e.g., direction and speed) of the

maint and constr vehicle location data_ud The current location and related status (e.g., direction and speed) of the

maint and constr vehicle operational data Data that describes the maintenance and construction activity performed by

maint and constr work plans Future construction and maintenance work schedules and activities including

maintenance materials storage status The amount and availability of maintenance materials in storage facilities.
multimodal service data Multimodal transportation schedules and other service information.
parking coordination Information that enables parking management activities to be coordinated

parking demand management request Request to change the demand for parking facility use through pricing or other

parking demand management response Response to parking demand management change requests indicating level of

parking information General parking information and current parking availability.
parking lot data request Request for parking lot occupancy, fares, and availability. The request can

parking lot inputs Instructions for operation of local parking facilities to support regional traffic

pass/pull-in Command to commercial vehicle to pull into or bypass inspection station.
patient status Information that supports assessment of the patient's condition. Information

payment Payment of some kind (e.g., toll, parking, fare) by traveler which, in most

payment request Request for payment from financial institution.
payment violation notification Notification to enforcement agency of a toll, parking, or transit fare payment

rail incident response status Status of the rail system’s response to current incidents.
railroad advisories Real-time notification of railway-related incident or advisory.
railroad schedules Train schedules, maintenance schedules, and other information from the

remote surveillance control The control commands used to remotely operate another center's sensors or

request for payment Request to deduct cost of service from user's payment account.

and deployment status. General resource inventory information covering
vehicles, equipment, materials, and people and specific resource deployment
status may be included.

reported by a maintenance and construction vehicle. The information includes
engine temperature, mileage, tire wear, brake wear, belt wear, and any
warnings or alarms concerning the operational condition of the vehicle and
ancillary equipment.

maintenance/construction vehicle.

maintenance/construction vehicle.

the vehicle. Operational data includes materials usage (amount stored and
current application rate), operational state of the maintenance equipment (e.g.,
blade up/down, spreader pattern), vehicle safety status, and other measures
associated with the operation of a maintenance, construction, or other special
purpose vehicle. Operational data may include basic operational status of the
vehicle equipment or a more precise record of the work performed (e.g.,
application of crack sealant with precise locations and application
characteristics).

anticipated closures with anticipated impact to the roadway, alternate routes,
anticipated delays, closure times, and durations.

between different parking operators or systems in a region.

mechanisms.

compliance with request.

be a subscription that initiates as-needed information updates as well as a one­time request for information.

management objectives (e.g. which parking lot exits to use). Also, includes
inputs from traffic sensors to support calculation of parking lot occupancy and
support more effective management of parking entrances and exits.

could include general categorization of patient status, patient vital signs,
pertinent medical history, and emergency care information.

cases, can be related to a credit account.

violation.

railroad that supports forecast of HRI closures.

surveillance equipment so that roadside surveillance assets can be shared by
more than one agency.

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Architecture Flow Descriptions

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Architecture Flow Description

request for right-of-way Forwarded request from signal prioritization, signal preemption, pedestrian

request for vehicle measures Request for vehicle performance and maintenance data collected by onboard

request tag data Request for tag information including credit identity, stored value card cash,

request transit information Request for transit service information and current transit status.
resource coordination Coordination of resource inventory information, specific resource status

resource deployment status Status of resource deployment identifying the resources (vehicles, equipment,

resource request A request for resources to implement special traffic control measures, assist in

road network conditions Current and forecasted traffic information, road and weather conditions, traffic

road network status assessment Assessment of damage sustained by the road network including location and

road network traffic probe data Aggregated route usage, travel times, and other aggregated data collected

road network traffic probe data_ud Aggregated route usage, travel times, and other aggregated data collected

road weather information Road conditions and weather information that are made available by road

roadside archive data A broad set of data derived from roadside sensors that includes current traffic

roadway information system data Information used to initialize, configure, and control roadside systems that

roadway information system status Current operating status of dynamic message signs, highway advisory radios,

roadway maintenance status Summary of maintenance fleet operations affecting the road network. This

safety status information Safety information such as safety ratings, security ratings or flags, inspection

screening event record Results of CVO electronic screening activity.

call, multi-modal crossing activation, or other source for right-of-way.

sensors.

etc.

information, resource prioritization and reallocation between jurisdictions, and
specific requests for resources and responses that service those requests.

materials, and personnel) available and their current status. General resource
inventory information and specific status of deployed resources may be
included.

clean up, verify an incident, etc. The request may poll for resource availability
or request pre-staging, staging, or immediate deployment of resources.
Resources may be explicitly requested or a service may be requested and the
specific resource deployment may be determined by the responding agency.

incident information, and other road network status. Either raw data,
processed data, or some combination of both may be provided by this
architecture flow. Information on diversions and alternate routes, closures,
and special traffic restrictions (lane/shoulder use, weight restrictions, width
restrictions, HOV requirements) in effect is also included.

extent of the damage, estimate of remaining capacity, required closures,
alternate routes, necessary restrictions, and time frame for repair and recovery.

from probe vehicles that can be used to estimate current traffic conditions.

from probe vehicles that can be used to estimate current traffic conditions.

maintenance operations to other transportation system operators.

conditions, environmental conditions, and any other data that can be directly
collected by roadside sensors. This data also indicates the status of the
sensors and reports of any identified sensor faults.

provide driver information (e.g., dynamic message signs, highway advisory
radio, beacon systems). This flow can provide message content and delivery
attributes, local message store maintenance requests, control mode
commands, status queries, and all other commands and associated
parameters that support remote management of these systems.

beacon systems, or other configurable field equipment that provides dynamic
information to the driver.

includes the status of winter maintenance (snow plow schedule and current
status).

summaries, and violation summaries. A unique identifier is included.
Corresponds to the safety and security portion of CVISN "snapshots." The
status information may be provided as a response to a real-time query or as a
result of a standing request for updated information (subscription). This may
also include information about non-U.S. fleets for use by U.S. authorities, and
information regarding U.S. fleets made available to Mexican and Canadian
authorities. The query flow is not explicitly shown.

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Architecture Flow Descriptions

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Architecture Flow Description

secure area sensor control Information used to configure and control threat sensors (e.g., thermal,

secure area sensor data Data provided by threat sensors (e.g., thermal, acoustic, radiological,

secure area surveillance control Information used to configure and control audio and video surveillance

secure area surveillance data Data collected from surveillance systems used to monitor secure areas.

security field equipment status Identification of security sensors and surveillance equipment requiring repair

selected routes Routes selected based on route request criteria.
short range communications status Status of the short range communications equipment including the current

signal control data Information used to configure and control traffic signal systems.
signal control status Status of surface street signal controls including operating condition and

speed monitoring control Information used to configure and control automated speed monitoring, speed

speed monitoring information System status including current operational state and logged information

storage facility request Request for information about the equipment and/or materials available at a

suggested route Suggested route for a dispatched emergency or maintenance vehicle that may

tag data Unique tag ID and related vehicle information.
tag update Data written to a tag to support electronic toll collection or parking payment.
threat information Threats regarding transportation infrastructure, facilities, or systems detected

threat information coordination Sensor, surveillance, and threat data including raw and processed data that is

toll instructions Information provided to configure and support toll plaza operations including

toll transactions Detailed list of transactions from a toll station.
track status Current status of the wayside equipment and notification of an arriving train.
traffic archive data Information describing the use and vehicle composition on transportation

traffic control coordination Information transfers that enable remote monitoring and control of traffic

traffic control priority request Request for signal priority at one or more intersections along a particular route.
traffic control priority status Status of signal priority request functions at the roadside (e.g. enabled or

acoustic, radiological, chemical), object, motion and intrusion detection
sensors. The provided information controls sensor data collection,
aggregation, filtering, and other local processing.

chemical), and intrusion, motion, and object detection sensors in secure areas
indicating the sensor's operational status, raw and processed sensor data, and
alarm indicators when a threat has been detected.

systems used for transportation infrastructure security in secure areas. The
provided information controls surveillance data collection, aggregation,
filtering, and other local processing.

Includes video, audio, processed surveillance data, equipment operational
status, and alarm indicators when a threat has been detected.

and known information about the associated faults.

state or mode of operation and the current equipment status.

current operational state.

warning, and speed enforcement systems.

including measured speeds, warning messages displayed, and violation
records.

maintenance storage facility.

reflect current network conditions and the additional routing options available
to en route emergency or maintenance vehicles that are not available to the
general public.

by a variety of methods (sensors, surveillance, threat analysis of advisories
from outside agencies, etc.

collected by sensor and surveillance equipment located in secure areas.

toll pricing information.

facilities and the traffic control strategies employed. Content may include a
catalog of available information, the actual information to be archived, and
associated meta data that describes the archived information.

management devices. This flow is intended to allow cooperative access to,
and control of, field equipment during incidents and special events and during
day-to-day operations. This flow also allows 24-hour centers to monitor and
control assets of other centers during off-hours, allows system redundancies
and fail-over capabilities to be established, and otherwise enables integrated
traffic control strategies in a region.

disabled).

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Architecture Flow Descriptions

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Architecture Flow Description

traffic flow Raw and/or processed traffic detector data which allows derivation of traffic

traffic images High fidelity, real-time traffic images suitable for surveillance monitoring by the

traffic images_ud High fidelity, real-time traffic images suitable for surveillance monitoring by the

traffic information coordination Traffic information exchanged between TMC’s. Normally would include

traffic probe data Vehicle data that is used to determine traffic conditions. In a basic

traffic sensor control Information used to configure and control traffic sensor systems.
transaction status Response to transaction request. Normally dealing with a request for payment.
transit and fare schedules Transit service information including routes, schedules, schedule adherence,

transit archive data Data used to describe and monitor transit demand, fares, operations, and

transit emergency data Initial notification of transit emergency at a transit stop or on transit vehicles

transit fare and passenger status Information provided from the traveler location that supports fare payments,

transit fare information Information provided by transit management that supports fare payment

transit incident information Information on transit incidents that impact transit services for public

transit information request Request for transit operations information including schedule and fare

transit information user request Request for special transit routing, real-time schedule information, and

transit multimodal information Transit schedule information for coordination at modal interchange points.
transit probe data Aggregate probe data derived from tracking transit vehicles. Data collected

transit service coordination Schedule coordination information shared between local/regional transit

transit system data Current transit system operations information indicating current transit routes,

transit system status assessment Assessment of damage sustained by the public transportation system

transit traveler information Transit information prepared to support transit users and other travelers. It

transit vehicle conditions Operating conditions of transit vehicle (e.g., engine running, oil pressure, or

flow variables (e.g., speed, volume, and density measures) and associated
information (e.g., congestion, potential incidents). This flow includes the traffic
data and the operational status of the traffic detectors.

operator or for use in machine vision applications. This flow includes the
images and the operational status of the surveillance system.

operator or for use in machine vision applications. This flow includes the
images and the operational status of the surveillance system.

incidents, congestion data, traffic data, signal timing plans, and real-time
signal control information.

implementation, the data could be limited to time stamped unique identifiers
that can be used to measure a vehicle’s progress through the network. In
more advanced implementations, the vehicle may report current position,
speed, and heading and snapshots of recent events including starts and stops,
speed changes, and other information that can be used to estimate traffic
conditions.

and fare information. Includes transit service information during evacuation.

system performance. Content may include a catalog of available information,
the actual information to be archived, and associated meta data that describes
the archived information.

and further coordination as additional details become available and the
response is coordinated.

passenger data, and associated record-keeping.

transactions and passenger data collection.

dissemination.

information. The request can be a subscription that initiates as-needed
information updates as well as a one-time request for information.

availability information.

could include transit vehicle speeds and travel times for a given link or
collection of links.

organizations.

the level of service on each route, and the progress of individual vehicles
along their routes for use in forecasting demand and estimating current
transportation network performance.

including location and extent of the damage, current operational status
including an estimate of remaining capacity and necessary restrictions, and
time frame for repair and recovery.

contains transit schedules, real-time arrival information, fare schedules, alerts
and advisories, and general transit service information.

mileage).

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Architecture Flow Descriptions

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Architecture Flow Description

transit vehicle loading data Data collected on board the transit vehicle relating to passenger boarding and

transit vehicle location data Current transit vehicle location and related operational conditions data

transit vehicle operator information Transit service instructions, wide area alerts, traffic information, road

transit vehicle schedule performance Estimated times of arrival and anticipated schedule deviations reported by a

transportation network information_ud Current and forecasted traffic information, transit operations information, road

transportation system status Current status and condition of transportation infrastructure (e.g., tunnels,

traveler information for media General traveler information regarding incidents, unusual traffic conditions,

traveler profile Information about a traveler including equipment capabilities, personal

traveler request Request by a traveler to summon assistance, request information, make a

trip plan A sequence of links and special instructions comprising of a trip plan indicating

trip request Request by a driver/traveler for special routing.
vehicle based information_ud Vehicle information transmitted from on-board vehicle equipment used as part

vehicle messages_ud Vehicle messages used as part of VII effort to communicate with the on-board

video images_ud High fidelity, real-time video images suitable for surveillance monitoring by an

video surveillance control Information used to configure and control video surveillance systems.
violation notification Notification to enforcement agency of a violation. The violation notification

weather information Accumulated forecasted and current weather data (e.g., temperature,

work plan coordination Coordination of work plan schedules and activities between maintenance and

work plan feedback Comments and suggested changes to proposed construction and

alighting.

provided by a transit vehicle.

conditions, and other information for both transit and paratransit operators.

transit vehicle.

and weather conditions, traffic incident information, and other road network
status. Either raw data, processed data, or some combination of both may be
provided by this architecture flow. Information on diversions and alternate
routes, closures, and special traffic restrictions (lane/shoulder use, weight
restrictions, width restrictions, HOV requirements) in effect is also included.
Transit operations information including schedule and fare information. The
request can be a subscription that initiates as-needed information updates as
well as a one-time request for information.

bridges, interchanges, TMC offices, maintenance facilities). In case of disaster
or major incident, this flow provides an assessment of damage sustained by
the surface transportation system including location and extent of the damage,
estimate of remaining capacity and necessary restrictions, and time frame for
repair and recovery.

transit issues, or other advisory information that has been desensitized and
provided to the media.

preferences and recurring trip characteristics.

reservation, or initiate any other traveler service.

efficient routes for navigating the links. Normally coordinated with traffic
conditions, other incidents, preemption and prioritization plans.

of VII effort to communicate between vehicles and traffic management centers
via roadway equipment.

equipment.

operator.

flow describes the statute or regulation that was violated and how it was
violated (e. g., overweight on specific axle by xxx pounds or which brake was
out of adjustment and how far out of adjustment it was). A violation differs
from a citation because it is not adjudicated by the courts.

pressure, wind speed, wind direction, humidity, precipitation, visibility, light
conditions, etc.).

construction organizations or systems. This information includes the work plan
schedules and comments and suggested changes that are exchanged as work
plans are coordinated and finalized.

maintenance work schedules and activities. This information influences work
plan schedules so that they minimize impact to other system operations and
the overall transportation system.

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Architecture Flow Descriptions

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Architecture Flow Description

work zone information Summary of maintenance and construction work zone activities affecting the

work zone status Current work zone status including current location (and future locations for

work zone warning notification Notification of a work zone emergency or safety issue. This flow identifies that

work zone warning status Status of a work zone safety monitoring and warning devices. This flow

road network including the nature of the maintenance or construction activity,
location, impact to the roadway, expected time(s) and duration of impact,
anticipated delays, alternate routes, and suggested speed limits. This
information may be augmented with images that provide a visual indication of
current work zone status and traffic impacts.

moving work zones), impact to the roadway, required lane shifts, expected
time(s) and duration of impact, anticipated delays, alternate routes, and
suggested speed limits.

a work zone emergency or safety issue has occurred so that warnings may be
generated by more than one system in the work zone.

documents system activations and includes additional supporting information
(e.g., an image) that allows verification of the alarm.

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Architecture Flow Descriptions

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