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Architecture Flow Description
request for right-of-way Forwarded request from signal prioritization, signal preemption, pedestrian
call, multi-modal crossing activation, or other source for right-of-way.
request for vehicle measures Request for vehicle performance and maintenance data collected by onboard
sensors.
request tag data Request for tag information including credit identity, stored value card cash,
etc.
request transit information Request for transit service information and current transit status.
resource coordination Coordination of resource inventory information, specific resource status
information, resource prioritization and reallocation between jurisdictions, and
specific requests for resources and responses that service those requests.
resource deployment status Status of resource deployment identifying the resources (vehicles, equipment,
materials, and personnel) available and their current status. General resource
inventory information and specific status of deployed resources may be
included.
resource request A request for resources to implement special traffic control measures, assist in
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.
road network conditions Current and forecasted traffic information, road 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.
road network status assessment Assessment of damage sustained by the road network including location and
extent of the damage, estimate of remaining capacity, required closures,
alternate routes, necessary restrictions, and time frame for repair and recovery.
road network traffic probe data Aggregated route usage, travel times, and other aggregated data collected
from probe vehicles that can be used to estimate current traffic conditions.
road network traffic probe data_ud Aggregated route usage, travel times, and other aggregated data collected
from probe vehicles that can be used to estimate current traffic conditions.
road weather information Road conditions and weather information that are made available by road
maintenance operations to other transportation system operators.
roadside archive data A broad set of data derived from roadside sensors that includes current traffic
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.
roadway information system data Information used to initialize, configure, and control roadside systems that
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.
roadway information system status Current operating status of dynamic message signs, highway advisory radios,
beacon systems, or other configurable field equipment that provides dynamic
information to the driver.
roadway maintenance status Summary of maintenance fleet operations affecting the road network. This
includes the status of winter maintenance (snow plow schedule and current
status).
safety status information Safety information such as safety ratings, security ratings or flags, inspection
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.
screening event record Results of CVO electronic screening activity.
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Architecture Flow Descriptions
OKI ITS