North Dakota Statewide ITS Architecture

Interface: NDDOT Maintenance Management - NDDOT ATR

Information Flow Definitions

automated lane control data  (Planned)  Selected Comm Solution

Control commands and operating parameters for automated vehicle operations, including tightly coupled platooned groups of vehicles operating in dedicated or mixed–mode lanes. This flow includes platoon parameters including maximum platoon size, target speeds and gaps, and vehicle restrictions.

automated lane status  (Planned)  Selected Comm Solution

Current operational status of lanes supporting automated vehicle operations. The flow includes the status of the RSEs, associated field equipment, and vehicles using the facility.

barrier system control  (Planned)  Selected Comm Solution

Information used to configure and control barrier systems that are represented by gates, barriers and other automated or remotely controlled systems used to manage entry to roadways.

barrier system status  (Planned)  Selected Comm Solution

Current operating status of barrier systems. Barrier systems represent gates, barriers and other automated or remotely controlled systems used to manage entry to roadways. Status of the systems includes operating condition and current operational state.

environmental sensor data  (Planned)  Selected Comm Solution

Current road conditions (e.g., surface temperature, subsurface temperature, 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.

environmental sensors control  (Planned)  Selected Comm Solution

Data used to configure and control environmental sensors.

field equipment status  (Planned)  Selected Comm Solution

Reports from field equipment (sensors, signals, signs, controllers, etc.) which indicate current operational status.

infrastructure monitoring sensor control  (Planned)  Selected Comm Solution

Data used to configure and control infrastructure monitoring sensors.

infrastructure monitoring sensor data  (Planned)  Selected Comm Solution

Data read from infrastructure–based sensors that monitor the condition or 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.

lane management information  (Planned)  Selected Comm Solution

System status of managed lanes including current operational state, violations, and logged information. This includes lane usage information including both traditional traffic flow measures and special information associated with managed lanes such as measured passenger occupancies. It also includes the operational status of the lane management equipment.

rail crossing blockage notification  (Planned)  Selected Comm Solution

Notification that a highway–rail intersection is obstructed and supporting information.

rail crossing control data  (Planned)  Selected Comm Solution

Data required for HRI information transmitted at railroad grade crossings and within railroad operations.

rail crossing request  (Planned)  Selected Comm Solution

A request for highway–rail intersection status or a specific control request intended to modify HRI operation.

rail crossing status  (Planned)  Selected Comm Solution

Status of the highway–rail intersection equipment including both the current state or mode of operation and the current equipment condition.

reversible lane control  (Planned)  Selected Comm Solution

Control of automated reversible lane configuration and driver information systems.

reversible lane status  (Planned)  Selected Comm Solution

Current reversible lane status including traffic sensor and surveillance data and the operational status and mode of the reversible lane control equipment.

right-of-way request notification  (Planned)  Selected Comm Solution

Notice that a request has occurred for signal prioritization, signal preemption, pedestrian call, multi–modal crossing activation, or other source for right–of–way.

roadway dynamic signage data  (Planned)  Selected Comm Solution

Information used to initialize, configure, and control dynamic message signs. 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 devices.

roadway dynamic signage status  (Planned)  Selected Comm Solution

Current operating status of dynamic message signs.

roadway treatment system control  (Planned)  Selected Comm Solution

Control data for remotely located, automated devices, that treat the road surface (e.g., de–icing applications).

roadway treatment system status  (Planned)  Selected Comm Solution

Current operational status of automated roadway treatment devices (e.g., anti–icing systems).

safeguard system control  (Planned)  Selected Comm Solution

Data that controls safeguard systems (remotely controlled equipment used to mitigate the impact of incidents on transportation infrastructure, such as blast shields, exhaust systems, etc.).

safeguard system status  (Planned)  Selected Comm Solution

Current operating status of safeguard systems (remotely controlled equipment used to mitigate the impact of incidents on transportation infrastructure, such as blast shields, exhaust systems, etc.). Status of the systems includes operating condition and current operational state.

signal control commands  (Planned)  Selected Comm Solution

Control of traffic signal controllers or field masters including clock synchronization.

signal control device configuration  (Planned)  Selected Comm Solution

Data used to configure traffic signal control equipment including local controllers and system masters.

signal control plans  (Planned)  Selected Comm Solution

Traffic signal timing parameters including minimum green time and interval durations for basic operation and cycle length, splits, offset, phase sequence, etc. for coordinated systems.

signal control status  (Planned)  Selected Comm Solution

Operational and status data of traffic signal control equipment including operating condition and current indications.

signal fault data  (Planned)  Selected Comm Solution

Faults reported by traffic signal control equipment.

signal system configuration  (Planned)  Selected Comm Solution

Data used to configure traffic signal systems including configuring control sections and mode of operation (time based or traffic responsive).

speed monitoring control  (Planned)  Selected Comm Solution

Information used to configure and control automated speed monitoring, speed warning, and speed enforcement systems.

speed monitoring information  (Planned)  Selected Comm Solution

System status including current operational state and logged information including measured speeds, warning messages displayed, and violation records.

traffic detector control  (Existing)  Selected Comm Solution

Information used to configure and control traffic detector systems such as inductive loop detectors and machine vision sensors.

traffic detector data  (Existing)  Selected Comm Solution

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

traffic metering control  (Planned)  Selected Comm Solution

Control commands and operating parameters for ramp meters, interchange meters, mainline meters, and other systems equipment associated with roadway metering operations.

traffic metering status  (Planned)  Selected Comm Solution

Current operational status and operating parameters for ramp meters, interchange meters, mainline meters and other control equipment associated with roadway metering operations.

traffic situation data  (Planned)  Selected Comm Solution

Current, aggregate traffic data collected from connected vehicles that can be used to supplement or replace information collected by roadside traffic detectors. It includes raw and/or processed reported vehicle speeds, counts, and other derived measures. Raw and/or filtered vehicle control events may also be included to support incident detection.

work zone warning device control  (Planned)  Selected Comm Solution

Data used to configure and control work zone safety monitoring and warning devices.

work zone warning status  (Planned)  Selected Comm Solution

Status of a work zone safety monitoring and warning devices. This flow documents system activations and includes additional supporting information (e.g., an image) that allows verification of the alarm.