2024 Arizona Statewide ITS Architecture

Vehicle Safety for Arizona Roles and Responsibilities

Stakeholder	Role and Responsibility
ADOT	Installs and maintains height and weight restriction roadside equipment.
	Exchanging data with other data distribution systems
	Issuing credentials to system users that serve system user needs.
	Monitoring cybersecurity of connected vehicle roadside equipment.
	Providing, supporting and managing data subscription services that manage the necessary user information and rules that govern data subscriptions.
	Secure, monitor, maintain, and control all ADOT field equipment
	Ensure all relevant and applicable data security laws and regulations are being followed, and that data is secure.
	Maintaining a list of cyber addresses and services provided from the Object Registration and Discovery System (ORDS) in order to identify what services are provided, who provides the service, and were to go to obtain the services provided
	Verifying the identity and justification for system users that request permissions.
	Provides height and weight restriction information on tunnels, bridges, overpasses or sections of roadway to other centers to support safety operations.
	Authorizing system users to perform ITS functions without divulging their identity.
	Collecting queue formation data from both the infrastructure and connected vehicle sources of information and generating queue warning response strategies.
	Collect road weather data from environmental sensors, using connected vehicle technologies and proptocols.
	Generating road weather motorists warnings and advisories
	Collecting environmental data from private, commercial, specialty and public fleet vehicles in order to provide motorists with advisories and alerts.
	Use Connected Vehicle equipment and systems to identify and warn motorists using reduced speed warning zone warnings, lane closures, lane restrictions, location and extent of the reduced speed zones and information about associated road configuration changes including lane merges and shifts
	Providing environmental sensors and data to the connected vehicle roadside equipment.
	Use Connected Vehicle equipment and systems to monitor and provide current environmental conditions, warnings and recommended speeds, safety messages, speed advisories, and weather conditions to connected vehicles.
	Maintain roadway center line and side line striping for general safety purposes. This would also be done for the purpose of developing and generating accurate MAP messages for Connected Vehicle applications, as well as for potential autonomous vehicle operations that may depend on well–maintained roadway striping.
Arizona Cities and Towns	Secure, monitor, maintain, and control all field equipment
	Maintain roadway center line and side line striping for Connected and Automated Vehicles.
	Collecting road weather data from environmental sensors
	Exchanging data with other data distribution systems
	Generating road weather motorists warnings and advisories
	Ensure all relevant and applicable data security laws and regulations are being followed, and that data is secure.
	Monitoring and providing current environmental conditions, warnings and recommended speeds, safety messages, speed advisories, and weather conditions to connected vehicles.
Arizona Counties	Collecting road weather data from environmental sensors
	Maintain roadway center line and side line striping for Connected and Automated Vehicles.
	Exchanging data with other data distribution systems
	Generating road weather motorists warnings and advisories
	Monitoring and providing current environmental conditions, warnings and recommended speeds, safety messages, speed advisories, and weather conditions to connected vehicles.
	Secure, monitor, maintain, and control all field equipment
	Ensure all relevant and applicable data security laws and regulations are being followed, and that data is secure.
Arizona Universities	UofA's provide transportation expertise to perform research–oriented traffic and ITS development studies. Related tasks include the MCDOT SMARTDrive Program and related Deployment Readiness of the Multi–Modal Intelligent Traffic Signal System (MMITSS) and
	Ensure all relevant and applicable data security laws and regulations are being followed, and that data is secure.
	Simulation and optimization models in specific applications, studying new transportation hardware and software systems.
	Investigate future connected and automated vehicle systems; Investigation of Impact and Opportunities for Automated Driving Vehicles.
AZTech	Connected Vehicle Roles and Responsibilities for AZTech are defined in the MAG Regional Architecture.
Emergency Medical (EM) Transport Companies	Deploy lighting for safety alerting of the public as motorists are approaching a crash scene.
	Ensure all relevant and applicable data security laws and regulations are being followed, and that data is secure.
	Receive data for Traffic Incident.
	Petition TOC for emergency response access to site for safest entry point.
Federal Highway Administration (FHWA)	Participate in meetings and serve in an advisory capacity for project development.
	Provide funding for Connected Vehicle projects.
Maricopa County Department of Transportation (MCDOT)	Connected Vehicle Roles and Responsiblities for MCDOT is defined in the MAG Architecture
National Oceanic Atmospheric Administration (NOAA)	Provide ongoing weather updates to local ITS management agency (i.e. DOT) for sending to the roadside equipment for alerts and warning.
Private Commercial Carriers	Communications between vehicles and between the vehicles and supporting infrastructure equipment supports cooperative check–in to the automated portion of the system and transition to automated mode, coordination of maneuvers between vehicles in automated mode, and checkout from the automated system.
	Platooning vehicles – enables closely spaced, tightly coupled platoons of vehicles to operate with short fixed gaps, providing greatly enhanced highway capacity and throughput with enhanced efficiency since aerodynamic drag is reduced.
	Maintain and update vehicle safety features.
	Provide, modify and maintain software applications inside trucks / vehicles to work with connected vehicle roadside equipment.
	Alerts the driver about the location of and the movement of public safety vehicles responding to an incident, slow moving vehicles, oversized vehicles, and other special vehicles that may require special attention from the driver.
	Full vehicle automation, controlling both the steering and acceleration/deceleration on areas of the highway system that support full automation.
Public and Private Transit Providers	Ensure all relevant and applicable data security laws and regulations are being followed, and that data is secure.
	Secure, monitor, maintain, and control all field equipment
	Initiation instalation of transit May day alerting systems
Time and Data Sources	Installing and maintaining a common geographic reference for all vehicle operators and system operators
	Maintaining time based synchronization between the TOC and the connected vehicle roadside equipment
	Providing infrastructure restrictions and mapping updates for distribution in real time
	Installing and maintaining a common time base for coordination of time between internal systems that comprise the connected vehicle environment to enable time sensitive interactions between all users.
	Developing map update processes using real–world observations of roadway geometry, intersection geometry and parking geometry
Travelers	Set vehicles to receive warnings from other vehicles in over to avoid a safety compromising situation
	Set vehicle to monitor vehicle systems and the traffic in the area to determine if there are situations that require intervention by the driver or safety system
	Set vehicles to provide vehicle control actions to intervene and prevent crashes with other vehicles or road conditions
	Set vehicles to receive queue data and send back queue data and respond to strategies to upstream vehicles.
	Set vehicles to receive warnings that reduced speed zones are approaching or that there are lane closures upcoming.
	Set vehicle to provide and receive safety warnings when a safety compromising situation is detected, weather situation is detected or road conditions represent a potential safety hazard for the vehicle.