SAE INTERNATIONAL SAE DSRC TECHNICAL COMMITTEE WORK AND

SAE INTERNATIONAL SAE DSRC TECHNICAL COMMITTEE WORK AND OUTLOOK Sue Bai SAE DSRC Technical Committee Chair Honda R&D Americas, Inc.

SAE DSRC Technical Committee (TC) Responsibility & Structure • Scope: Develop and maintain V 2 X message set and application standards/recommended practices for interoperability, with short- to medium-range wireless communication protocols • Concentration of experts group in various Task Forces with diverse background (54 members from automotive industry, road operators, government, Telecomm, academia, etc. ) • Coordinates with other organizations involved in V 2 X effort such as related SAE TCs, ETSI, ISO, 3 GPP. Activities include maintaining common data dictionary items, organizing initial effort of gathering use cases, defining work boundaries, etc. Technical Committee Crosscutting TF SAE INTERNATIONAL V 2 V Safety Awareness TF V 2 V Cooperative Automation TF V 2 I I 2 V TF V 2 Other TF 2

SAE DSRC TC Documents Pub lishe • • d • • • Pub lishe d • • • Supports interoperability Defines standardized message sets Defines formats for basic safety message set dictionary Periodically revised to meet new needs/applications J 2735 Message Set Dictionary Basic Safety Message (BSM) Map. Data (Map) message Signal Phase and Timing (SPa. T) Personal Safety Message (for pedestrian and other vulnerable road users) Traveler Information Message (TIM) Pub lishe d J 2945/0 Systems Engineering Process Guidance for J 2945/x Documents and Common Design Concepts • • • System engineering example Communication protocol Channel use V 2 X message/application priority … lishe J 2945/1 On-Board System Requirements for V 2 V Safety Communications SAE INTERNATIONAL Guidance document to J 2945/x family standards Contains cross-cutting materials for other J 2945/x standards Generic DSRC interface requirement content d J 2945/9 VRU (V 2 P) Safety Message Minimum Performance Requirements J 2945/2 Performance Requirements for V 2 V Safety Awareness J 2945/3 Requirements for V 2 I Weather Applications J 2945/4 V 2 I Road Safety (title TBD) Applications J 2945/6 CACC/Platooning Performance Requirements J 2945/10 Map/SPa. T Related J 2945/11 Signal Preemption Related J 2945/12 Traffic Probe Use and Operation 3

SAE DSRC TC Document: J 2945/1 • 1 st edition of on-board system requirements standard for V 2 V safety communications • Support interoperability and data integrity • Largely referenced by USDOT’s V 2 V safety system NPRM Forward Collision Warning J 2945/1 On-Board System Requirements for V 2 V Safety Communications Blind Sport Warning Do Not Pass Warning Control Loss Warning SAE INTERNATIONAL Electronic Emergency Brake Lights Intersection Movement Assist 4

SAE DSRC TC Document: J 2945/9 • Defines the safety message minimum performance requirements from pedestrian device (e. g. smartphone) to vehicles • Protect pedestrians (including people with disabilities/special needs), cyclists, public safety workers • Personal Safety message is defined in J 2735 SAE INTERNATIONAL J 2945/9 VRU (V 2 P) Safety Message Minimum Performance Requirements 5

SAE DSRC TC Document: J 2945/2 • Defines the performance requirements for V 2 V Safety Awareness Performance Requirements • Covers four applications: Emergency Vehicle Alert, Roadside Alert, Safety Awareness Alerts for Objects, Adverse Road Conditions • Includes needs and requirements, design, message and data (the message(s) defined in this document will be moved to J 2735 at the next revision) • Status: in final balloting d oa r n o ject Ob Emergency Vehicle Alert SAE INTERNATIONAL Roadside Alert (slow moving specialty veh. ) Safety Awareness J 2945/2 Performance Requirements for V 2 V Safety Awareness Black ice Adverse Road Condition 6

SAE DSRC TC Documents: In Process (1) • Mostly V 2 I focus • Support day-one benefit while V 2 V environment takes time to grow • • J 2945/3 Requirements for V 2 I Weather Applications Collect weather-related data from vehicles Distribute weather-sensitive information for safety and mobility. For example: • Enhanced maintenance decision support system • Weather advisory and warnings • Routing support for emergency responders • Weather-sensitive variable speed sign, ramp metering SAE INTERNATIONAL • • • J 2945/4 V 2 I Road Safety (title TBD) Applications Infrastructure Vehicle safety and mobility-related information Some of the candidate applications: • Curve speed warning • Reduced speed zone warning • More to add Flexible message structure with application-specific container 7

SAE DSRC TC Documents: In Process (2) J 2945/6 Cooperative ACC Performance Requirements • • Enhance ACC with V 22 V 2 I communication Include platooning as Phase 2 SAE INTERNATIONAL J 2945/10 Map/SPa. T Message Recommended Practice • • Explain and demonstrate how to use these messages Intended for developers/users J 2945/11 Signal Preemption Recommended Practice • Explain and demonstrate how to use signal request and preemption messages J 2945/12 Traffic Probe Use and Operation Recommended Practice • Provide guidance on automated vehicle probe data collection and distribution 8

SAE DSRC TC Documents: Conclusion • SAE DSRC TC main activity: Publish high-quality standards to support academia, industry and government’s Connected and Automated Vehicle (CAV) research, deployment and regulation effort • Message definition and data dictionary are communication technology agnostic while application requirements/recommendations can be repurposed • Expanded from V 2 V-V 2 I safety to mobility, environment, and safety for a wide variety of vehicle types (heavy truck, motorcycle, etc. ) and road users (pedestrian, cyclist, public safety worker, etc. ) • Actively collaborating with V 2 X-related, other SAE teams (e. g. , maintain common data/message set, coordinate use cases and application requirements) • Coordinating and collaborating with other SDOs and organizations (ISO, ETSI, 3 GPP) to promote global adaption of SAE standards to optimize globalized design of V 2 X applications • Always looking for experts to propose new work to enable/enhance CAV system We welcome CAV experts to come join us Move forward together! SAE INTERNATIONAL 9