SAE J2945/B Signal Intersection Applications
Title
Minimum Requirements to Support Traffic Signal Priority and PreemptionDocument #
SAE J2945/BDescription
When identifying the content of this report, one of the goals was that it supports a nationally interoperable method for connected vehicles (CVs) to make traffic signal priority and/or preemption (TSPP) requests of connected intersections (CIs) that support priority and/or preemption services. Given that, this report specifies the over-the-air (OTA) interface between CVs and CIs to support TSPP applications using updated revisions of the SAE J2735 Signal Request Message (SRM) and Signal Status Message (SSM) and the use of a Wireless Access in Vehicular Environments (WAVE) Service Advertisement (WSA) to advertise support for TSPP at a CI. Included are a concept of operations, requirements, design, and message structure definitions developed using a detailed systems engineering process.Standard In Solutions
- US: SAE Signal Control Messages - Local Unicast Wireless (1609.2)
- US: SAE Signal Control Messages - LTE-V2X WSMP
- US: SAE Signal Control Messages - WAVE WSMP
- US: SAE Signal Preemption - LTE-V2X TCP
- US: SAE Signal Preemption - WAVE TCP
Standard In Profiles
Standard In Standard Bundles
- None
Hyperlink to Standard
SAE J2945/B Signal Intersection ApplicationsHyperlinks to the standard are provided when practical, but may not be up-to-date as SDOs may change their websites without prior notice. The ARC-IT team will update hyperlinks with ARC-IT releases.