ITS Communications Equipment

Status: Planned


This element includes the communications hardware and software that supports secure, reliable communications. It provides the layered protocols and communications services and includes the physical network plant and network hardware that supports ITS communications. It also encompasses security services that protect communications and the management services that support network management. This element allows transportation stakeholders that are implementing their own communications solution to represent this implementation in their ITS architecture. The communications capabilities provided by this element are frequently purchased from a third party provider. When communications is a purchased service, the hardware and software included in this element are largely transparent to transportation stakeholders and may be transparent to the ITS architecture.


StakeholderRoleRole Status
Public AgenciesOwnsPlanned

Physical Objects

ITS Communications Equipment

Functional Objects

Functional ObjectDescriptionUser Defined
ITS Communications Privacy Protection'ITS Communications Privacy Protection' operates as a proxy, obscuring the originator's network address, and tagging the message so that it can return replies to the originator.False
ITS Communications Services'ITS Communications Services' supports secure, reliable data communications between connected devices. It includes the network devices as well as any required physical cabling and supporting hardware that represent the communications infrastructure thaFalse
ITS Communications Support'ITS Communications Support' provides means to send and receive messages to and from other ITS Objects. It provides mechanisms for scheduling and prioritizing communications traffic. It may also provide relay functions.False
ITS Security Support'ITS Security Support' provides communications and system security functions to the ITS Object, including privacy protection functions. It may include firewall, intrusion management, authentication, authorization, profile management, identity management, False

Physical Standards

Document NumberTitleDescription
ISO 21217Intelligent transport systems –– Communications access for land mobiles (CALM) –– ArchitectureISO 21217 describes the communications reference architecture of nodes called "ITS station units" designed for deployment in ITS communication networks. While it describes a number of ITS station elements, whether or not a particular element is implemented in an ITS station unit depends on the specific communication requirements of the implementation. It also describes the various communication modes for peer–to–peer communications over various networks between ITS communication nodes. These nodes may be ITS station units as described in the document or any other reachable nodes. ISO 21217 specifies the minimum set of normative requirements for a physical instantiation of the ITS station based on the principles of a bounded secured managed domain.
NIST FIPS PUB 140–2Security Requirements for Cryptographic ModulesThis Federal Information Processing Standard (140–2) specifies the security requirements that will be satisfied by a cryptographic module, providing four increasing, qualitative levels intended to cover a wide range of potential applications and environments. The areas covered, related to the secure design and implementation of a cryptographic module, include specification; ports and interfaces; roles, services, and authentication; finite state model; physical security; operational environment; cryptographic key management; electromagnetic interference/electromagnetic compatibility (EMI/EMC); self–tests; design assurance; and mitigation of other attacks.

Interfaces To

(View Context Diagram)

Cincinnati Dynamic Message Signs
Cincinnati Field Equipment
Cincinnati Maintenance Garage
Cincinnati Police Cameras
Cincinnati Public Services Department
Cincinnati Traffic Control Center
City and County Cameras
City and County Connected Vehicle Roadside Equipment
City and County Field Equipment
City and County Traffic Control Center
Connected/Automated Vehicles
CVG Airport Connected Vehicle Roadside Equipment
Hamilton County Field Equipment
Hamilton County Signal Operations
INDOT Cameras
INDOT Connected Vehicle RSE
INDOT Dynamic Message Signs
INDOT Field Equipment
INDOT Lane Control Devices
INDOT Ramp Meters
INDOT Seymour District Maintenance Garages
INDOT Speed Monitoring Roadside Equipment
INDOT Traffic Operations Center
INDOT Traffic Signal Control System
INDOT Traffic Signal Roadway Equipment
INDOT Variable Speed Limit Signs
KYTC Automated Gate Closure Systems
KYTC District 6 Field Equipment
KYTC District 6 Maintenance Garages
KYTC District 6 Maintenance Operations
KYTC District 6 Traffic Operations Center
KYTC Dynamic Message Signs
KYTC Frankfort TOC
KYTC Lane Control Devices
KYTC Ramp Meters
KYTC RWIS Stations
KYTC Speed Monitoring Roadside Equipment
KYTC Traffic Signal Control System
KYTC Traffic Signal Roadway Equipment
KYTC Variable Speed Limit Signs
ODOT / KYTC Cameras
ODOT / KYTC Connected Vehicle Roadside Equipment
ODOT / KYTC Traffic Counters
ODOT / KYTC Traffic Sensors
ODOT Automated Gate Closure Systems
ODOT District 8 Field Equipment
ODOT District 8 Maintenance Garages
ODOT District 8 Signal Operations
ODOT Dynamic Message Signs
ODOT Lane Control Devices
ODOT Ramp Meters
ODOT RWIS Stations
ODOT Speed Monitoring Roadside Equipment
ODOT Statewide TMC
ODOT Traffic Signal Control System
ODOT Traffic Signal Roadway Equipment
ODOT Variable Speed Limit Signs
Other City and County Traffic Control Centers
Truck Parking Hybrid Signs
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