US: SAE Lane-Level Mapping - Secure Internet (ITS)

Description

This solution is used within the U.S.. It combines standards associated with US: SAE Lane–Level Mapping with those for I–I: Secure Internet (ITS). The US: SAE Lane–Level Mapping standards include upper–layer standards required to implement lane–level and road furniture mapping information flows. The I–I: Secure Internet (ITS) standards include lower–layer standards that support secure communications between ITS equipment using X.509 or IEEE 1609.2 security certificates.

Includes Standards

LevelDocNumFullNameDescription
ITS Application EntitySAE J2945/AStandard for Lane–Level and Road Furniture Mapping for Infrastructure–based V2X ApplicationsThe document provides a generalized mapping solution that can be applied to future infrastructure–based application standards using a layering approach, so that each new application standard at most needs to define a new layer of information that is unique to specific V2X application. It provides an ability to describe small, lane–level map descriptions that apply directly to V2X applications such as reduced speed zones (e.g. work zones) and curves (e.g. curve speed warning).
ITS Application EntitySAE J2735Dedicated 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.
FacilitiesSAE J2945Dedicated Short Range Communication (DSRC) Systems Engineering Process Guidance for J2945/x Documents and Common Design ConceptsThis standard defines cross–cutting material which applies to the J2945/x series including generic DSRC interface requirements and guidance on Systems Engineering (SE) content.
FacilitiesSAE J2945/AStandard for Lane–Level and Road Furniture Mapping for Infrastructure–based V2X ApplicationsThe document provides a generalized mapping solution that can be applied to future infrastructure–based application standards using a layering approach, so that each new application standard at most needs to define a new layer of information that is unique to specific V2X application. It provides an ability to describe small, lane–level map descriptions that apply directly to V2X applications such as reduced speed zones (e.g. work zones) and curves (e.g. curve speed warning).
Access Internet Subnet AlternativesA set of alternative standards that includes any Subnet Layer method of connecting to the Internet.

Readiness: High–Moderate

Readiness Description

One significant or possibly a couple minor issues. For existing deployments, the chosen solution likely has identified security or management issues not addressed by the communications solution. Deployers should consider additional security measures, such as communications link and physical security as part of these solutions. They should also review the management issues to see if they are relevant to their deployment and would require mitigation. For new deployments, the deployment efforts should consider a path to addressing these issues as a part of their design activities. The solution does not by itself provide a fully secure implementation without additional work.

Issues

IssueSeverityDescriptionAssociated StandardAssociated Triple
Still under developmentMediumA draft of the standard has been developed by the working group, but it was still under development at the time this analysis was performed.SAE J2945/A Lane–Level & Road Furniture Mapping(All)
Data not defined in standard formatLowThe definition of data concepts should conform to ISO 14817–1 to promote reuse among ITS.SAE J2735 DSRC Message Set(All)

Supports Interfaces

SourceDestinationFlow
Private Map Update SystemsCity and County Connected Vehicle Roadside Equipmentroadway geometry
Private Map Update SystemsCVG Airport Connected Vehicle Roadside Equipmentroadway geometry
Private Map Update SystemsINDOT Connected Vehicle RSEroadway geometry
Private Map Update SystemsODOT / KYTC Connected Vehicle Roadside Equipmentroadway geometry
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