OKI Regional ITS Architecture

US: SAE Signal Control Messages - WAVE WSMP

Description

This solution is used within the U.S.. It combines standards associated with US: SAE Signal Control Messages with those for V–X: WAVE WSMP. The US: SAE Signal Control Messages standards include upper–layer standards required to implement signal control information flows. The V–X: WAVE WSMP standards include lower–layer standards that support connectionless, near constant, ultra–low latency vehicle–to–any communications within ~300m using the WAVE Short Messaging Protocol (WSMP) over IEEE WAVE in the 5.9GHz spectrum. The broadcast mode is interoperable with M5 FNTP.

Includes Standards

Level	DocNum	FullName	Description
Mgmt	Addressed Elsewhere	Addressed Elsewhere in Stack	The services related to this portion of the stack are defined in the other standards listed for this solution.
ITS Application Entity	SAE J2945/B	Recommended Practices for Signalized Intersection Applications	This document provides guidance on usage of SAE J2735 and other related information for signalized intersection applications. The document focuses on how to use SPaT and MAP messages to support signalized–intersection applications. In general, implementation guidance is necessary to achieve interoperability by addressing the requirements for the options for both over the air dialogs and message contents, and to support larger intersection maps This document also addresses using Signal Request & Signal Status messages corresponding to vehicle functionality and approaches to traffic signal priority/pre–emption (TSP), including three different methods for implementing TSP over the air. The project is complementary to the connected intersections project being performed by ITE.
ITS Application Entity	SAE J2735	Dedicated Short Range Communications (DSRC) Message Set Dictionary (TM)	This standard defines the data and messages for use in DSRC (i.e., V2V, V2I, and V2D) applications. The SAE J2945 series defines additional requirements on how to use these messages.
ITS Application Entity	CEN ISO 19091	Intelligent transport systems –– Cooperative ITS –– Using V2I and I2V communications for applications related to signalized intersections	This technical specification defines messages and related data structures and data elements for the following exchanges between roadside equipment and vehicles: 1) Definition of the SPaT (signal phase and timing) message transmitted from a traffic controller that describes the state of the signals, signal timing as necessary to support the applications identified herein; 2) definition of the MAP message (which include the definition of motorized lane, vehicles, busses, trams, bicycle, pedestrian crosswalks, etc.); and 3) definition of the messages (SRM, SSM) to be exchanged between an intersection traffic controller and approaching vehicles to support priority treatment as might be expected for emergency response , freight transport, and public transport vehicles to improve safety.
Facilities	SAE J2945	Dedicated Short Range Communication (DSRC) Systems Engineering Process Guidance for J2945/x Documents and Common Design Concepts	This standard defines cross–cutting material which applies to the J2945/x series including generic DSRC interface requirements and guidance on Systems Engineering (SE) content.
Facilities	SAE J2735	Dedicated Short Range Communications (DSRC) Message Set Dictionary (TM)	This standard defines the data and messages for use in DSRC (i.e., V2V, V2I, and V2D) applications. The SAE J2945 series defines additional requirements on how to use these messages.
TransNet	IEEE 1609.3	IEEE Standard for Wireless Access in Vehicular Environments (WAVE) – Networking Services	This standard defines the network and transport layer options for the WAVE environment. The standard defines three options: a bandwidth efficient single–hop solution known as WSMP, UDP/IP, and TCP/IP. It has been harmonized with ISO FNTP and FSAP – a common message format specified in ISO 16460.

Readiness: Moderate

Readiness Description

Two significant or one significant and several minor issues. For existing deployments, the chosen solution is likely deficient in security or management capabilities and the issues should be reviewed and upgrades developed as needed. For new deployments, the solution may be viable for pilots when applied to the triples it supports; such pilot deployments should consider a path to addressing these issues as a part of their design activities. The solution does not provide sufficient interoperability, management, and security to enable proper, full–scale deployment without additional work.

Issues

Issue	Severity	Description	Associated Standard	Associated Triple
Data not defined in standard format	Low	The definition of data concepts should conform to ISO 14817–1 to promote reuse among ITS.	SAE J2735 DSRC Message Set	(All)
Guidance document under development	Low	This recommended practice on how to use the related standards is still under development but is not seen as strictly necessary to begin deployment of equipment.	SAE J2945/B Signal Intersection Applications	(All)
Not a standard (minor)	Low	The document is publicly available and widely used but it is not currently a formal standard.	ISO 19091 V2I for signalized intersections	(All)

Supports Interfaces

Source	Destination	Flow
City and County Connected Vehicle Roadside Equipment	BCRTA Transit Vehicles	intersection geometry
City and County Connected Vehicle Roadside Equipment	BCRTA Transit Vehicles	intersection status
City and County Connected Vehicle Roadside Equipment	Cincinnati Field Equipment	intersection status monitoring
City and County Connected Vehicle Roadside Equipment	Cincinnati Fire/EMS Vehicles	intersection geometry
City and County Connected Vehicle Roadside Equipment	Cincinnati Fire/EMS Vehicles	intersection status
City and County Connected Vehicle Roadside Equipment	Cincinnati Maintenance Vehicles	intersection geometry
City and County Connected Vehicle Roadside Equipment	Cincinnati Police Vehicles	intersection geometry
City and County Connected Vehicle Roadside Equipment	Cincinnati Police Vehicles	intersection status
City and County Connected Vehicle Roadside Equipment	City and County Field Equipment	intersection status monitoring
City and County Connected Vehicle Roadside Equipment	City and County Fire/EMS Vehicles	intersection geometry
City and County Connected Vehicle Roadside Equipment	City and County Fire/EMS Vehicles	intersection status
City and County Connected Vehicle Roadside Equipment	City and County Police/Sheriffs Vehicles	intersection geometry
City and County Connected Vehicle Roadside Equipment	City and County Police/Sheriffs Vehicles	intersection status
City and County Connected Vehicle Roadside Equipment	Commercial Vehicles and Barges	intersection geometry
City and County Connected Vehicle Roadside Equipment	Commercial Vehicles and Barges	intersection status
City and County Connected Vehicle Roadside Equipment	Connected/Automated Vehicles	intersection geometry
City and County Connected Vehicle Roadside Equipment	Connected/Automated Vehicles	intersection status
City and County Connected Vehicle Roadside Equipment	CTC Transit Vehicles	intersection geometry
City and County Connected Vehicle Roadside Equipment	CTC Transit Vehicles	intersection status
City and County Connected Vehicle Roadside Equipment	CVG Emergency Response Vehicles	intersection geometry
City and County Connected Vehicle Roadside Equipment	CVG Emergency Response Vehicles	intersection status
City and County Connected Vehicle Roadside Equipment	Hamilton County Field Equipment	intersection status monitoring
City and County Connected Vehicle Roadside Equipment	Hamilton County Fire/EMS Vehicles	intersection geometry
City and County Connected Vehicle Roadside Equipment	Hamilton County Fire/EMS Vehicles	intersection status
City and County Connected Vehicle Roadside Equipment	Hamilton County Maintenance Vehicle	intersection geometry
City and County Connected Vehicle Roadside Equipment	Hamilton County Sheriffs Vehicles	intersection geometry
City and County Connected Vehicle Roadside Equipment	Hamilton County Sheriffs Vehicles	intersection status
City and County Connected Vehicle Roadside Equipment	Local Transit Vehicles	intersection geometry
City and County Connected Vehicle Roadside Equipment	Local Transit Vehicles	intersection status
City and County Connected Vehicle Roadside Equipment	Other City and County Maintenance Vehicles	intersection geometry
City and County Connected Vehicle Roadside Equipment	Other Public Safety Vehicles	intersection geometry
City and County Connected Vehicle Roadside Equipment	Other Public Safety Vehicles	intersection status
City and County Connected Vehicle Roadside Equipment	RAMP Transit Vehicles	intersection geometry
City and County Connected Vehicle Roadside Equipment	RAMP Transit Vehicles	intersection status
City and County Connected Vehicle Roadside Equipment	SORTA ACCESS Vehicles	intersection geometry
City and County Connected Vehicle Roadside Equipment	SORTA ACCESS Vehicles	intersection status
City and County Connected Vehicle Roadside Equipment	SORTA Fixed Route Vehicles	intersection geometry
City and County Connected Vehicle Roadside Equipment	SORTA Fixed Route Vehicles	intersection status
City and County Connected Vehicle Roadside Equipment	TANK Transit Vehicles	intersection geometry
City and County Connected Vehicle Roadside Equipment	TANK Transit Vehicles	intersection status
CVG Airport Connected Vehicle Roadside Equipment	City and County Fire/EMS Vehicles	intersection geometry
CVG Airport Connected Vehicle Roadside Equipment	City and County Police/Sheriffs Vehicles	intersection geometry
CVG Airport Connected Vehicle Roadside Equipment	Commercial Vehicles and Barges	intersection geometry
CVG Airport Connected Vehicle Roadside Equipment	Connected/Automated Vehicles	intersection geometry
CVG Airport Connected Vehicle Roadside Equipment	CVG Emergency Response Vehicles	intersection geometry
CVG Airport Connected Vehicle Roadside Equipment	Local Transit Vehicles	intersection geometry
CVG Airport Connected Vehicle Roadside Equipment	Local Transit Vehicles	intersection status
CVG Airport Connected Vehicle Roadside Equipment	Other Public Safety Vehicles	intersection geometry
CVG Airport Connected Vehicle Roadside Equipment	RAMP Transit Vehicles	intersection geometry
CVG Airport Connected Vehicle Roadside Equipment	RAMP Transit Vehicles	intersection status
CVG Airport Connected Vehicle Roadside Equipment	TANK Transit Vehicles	intersection geometry
CVG Airport Connected Vehicle Roadside Equipment	TANK Transit Vehicles	intersection status
INDOT Connected Vehicle RSE	City and County Fire/EMS Vehicles	intersection geometry
INDOT Connected Vehicle RSE	City and County Fire/EMS Vehicles	intersection status
INDOT Connected Vehicle RSE	City and County Police/Sheriffs Vehicles	intersection geometry
INDOT Connected Vehicle RSE	City and County Police/Sheriffs Vehicles	intersection status
INDOT Connected Vehicle RSE	Commercial Vehicles and Barges	intersection geometry
INDOT Connected Vehicle RSE	Commercial Vehicles and Barges	intersection status
INDOT Connected Vehicle RSE	Connected/Automated Vehicles	intersection geometry
INDOT Connected Vehicle RSE	Connected/Automated Vehicles	intersection status
INDOT Connected Vehicle RSE	Hoosier Helper Safety Service Patrol	intersection geometry
INDOT Connected Vehicle RSE	Indiana State Police Vehicles	intersection geometry
INDOT Connected Vehicle RSE	Indiana State Police Vehicles	intersection status
INDOT Connected Vehicle RSE	INDOT Maintenance Vehicles	intersection geometry
INDOT Connected Vehicle RSE	INDOT Traffic Signal Roadway Equipment	intersection status monitoring
INDOT Connected Vehicle RSE	Local Transit Vehicles	intersection geometry
INDOT Connected Vehicle RSE	Local Transit Vehicles	intersection status
INDOT Connected Vehicle RSE	Other Public Safety Vehicles	intersection geometry
INDOT Connected Vehicle RSE	Other Public Safety Vehicles	intersection status
ODOT / KYTC Connected Vehicle Roadside Equipment	BCRTA Transit Vehicles	intersection geometry
ODOT / KYTC Connected Vehicle Roadside Equipment	BCRTA Transit Vehicles	intersection status
ODOT / KYTC Connected Vehicle Roadside Equipment	Cincinnati Fire/EMS Vehicles	intersection geometry
ODOT / KYTC Connected Vehicle Roadside Equipment	Cincinnati Fire/EMS Vehicles	intersection status
ODOT / KYTC Connected Vehicle Roadside Equipment	Cincinnati Police Vehicles	intersection geometry
ODOT / KYTC Connected Vehicle Roadside Equipment	Cincinnati Police Vehicles	intersection status
ODOT / KYTC Connected Vehicle Roadside Equipment	Cincinnati Streetcar Rail Vehicles	intersection geometry
ODOT / KYTC Connected Vehicle Roadside Equipment	Cincinnati Streetcar Rail Vehicles	intersection status
ODOT / KYTC Connected Vehicle Roadside Equipment	City and County Fire/EMS Vehicles	intersection geometry
ODOT / KYTC Connected Vehicle Roadside Equipment	City and County Fire/EMS Vehicles	intersection status
ODOT / KYTC Connected Vehicle Roadside Equipment	City and County Police/Sheriffs Vehicles	intersection geometry
ODOT / KYTC Connected Vehicle Roadside Equipment	City and County Police/Sheriffs Vehicles	intersection status
ODOT / KYTC Connected Vehicle Roadside Equipment	Commercial Vehicles and Barges	intersection geometry
ODOT / KYTC Connected Vehicle Roadside Equipment	Commercial Vehicles and Barges	intersection status
ODOT / KYTC Connected Vehicle Roadside Equipment	Connected/Automated Vehicles	intersection geometry
ODOT / KYTC Connected Vehicle Roadside Equipment	Connected/Automated Vehicles	intersection status
ODOT / KYTC Connected Vehicle Roadside Equipment	CTC Transit Vehicles	intersection geometry
ODOT / KYTC Connected Vehicle Roadside Equipment	CTC Transit Vehicles	intersection status
ODOT / KYTC Connected Vehicle Roadside Equipment	CVG Emergency Response Vehicles	intersection geometry
ODOT / KYTC Connected Vehicle Roadside Equipment	CVG Emergency Response Vehicles	intersection status
ODOT / KYTC Connected Vehicle Roadside Equipment	Hamilton County Fire/EMS Vehicles	intersection geometry
ODOT / KYTC Connected Vehicle Roadside Equipment	Hamilton County Fire/EMS Vehicles	intersection status
ODOT / KYTC Connected Vehicle Roadside Equipment	Hamilton County Sheriffs Vehicles	intersection geometry
ODOT / KYTC Connected Vehicle Roadside Equipment	Hamilton County Sheriffs Vehicles	intersection status
ODOT / KYTC Connected Vehicle Roadside Equipment	KSP Troop Vehicles	intersection geometry
ODOT / KYTC Connected Vehicle Roadside Equipment	KSP Troop Vehicles	intersection status
ODOT / KYTC Connected Vehicle Roadside Equipment	KYTC District 6 Maintenance Vehicles	intersection geometry
ODOT / KYTC Connected Vehicle Roadside Equipment	KYTC SAFE Patrol	intersection geometry
ODOT / KYTC Connected Vehicle Roadside Equipment	KYTC Traffic Signal Roadway Equipment	intersection status monitoring
ODOT / KYTC Connected Vehicle Roadside Equipment	Local Transit Vehicles	intersection geometry
ODOT / KYTC Connected Vehicle Roadside Equipment	Local Transit Vehicles	intersection status
ODOT / KYTC Connected Vehicle Roadside Equipment	ODOT Freeway Safety Patrol	intersection geometry
ODOT / KYTC Connected Vehicle Roadside Equipment	ODOT Maintenance Vehicles	intersection geometry
ODOT / KYTC Connected Vehicle Roadside Equipment	ODOT Traffic Signal Roadway Equipment	intersection status monitoring
ODOT / KYTC Connected Vehicle Roadside Equipment	Ohio State Highway Patrol Vehicles	intersection geometry
ODOT / KYTC Connected Vehicle Roadside Equipment	Ohio State Highway Patrol Vehicles	intersection status
ODOT / KYTC Connected Vehicle Roadside Equipment	Other Public Safety Vehicles	intersection geometry
ODOT / KYTC Connected Vehicle Roadside Equipment	Other Public Safety Vehicles	intersection status
ODOT / KYTC Connected Vehicle Roadside Equipment	RAMP Transit Vehicles	intersection geometry
ODOT / KYTC Connected Vehicle Roadside Equipment	RAMP Transit Vehicles	intersection status
ODOT / KYTC Connected Vehicle Roadside Equipment	SORTA ACCESS Vehicles	intersection geometry
ODOT / KYTC Connected Vehicle Roadside Equipment	SORTA ACCESS Vehicles	intersection status
ODOT / KYTC Connected Vehicle Roadside Equipment	SORTA Fixed Route Vehicles	intersection geometry
ODOT / KYTC Connected Vehicle Roadside Equipment	SORTA Fixed Route Vehicles	intersection status
ODOT / KYTC Connected Vehicle Roadside Equipment	TANK Transit Vehicles	intersection geometry
ODOT / KYTC Connected Vehicle Roadside Equipment	TANK Transit Vehicles	intersection status
ODOT / KYTC Connected Vehicle Roadside Equipment	TRIMARC Freeway Service Patrol (KYTC)	intersection geometry
ODOT / KYTC Connected Vehicle Roadside Equipment	University of Cincinnati Shuttle Vehicles	intersection geometry
ODOT / KYTC Connected Vehicle Roadside Equipment	University of Cincinnati Shuttle Vehicles	intersection status