Improve Communication Standards for Vulnerable Road Users to Properly Connect Them to the Connected Vehicle Communications Infrastructure.

The Roadmap for Multimodal and Accessible Travel Standardization Work Offered Recommendations to Create Standards for Governing Vulnerable Road Users’ Interaction with Technology and the Built Environment.

Date Posted
02/29/2024
Identifier
2024-L01213

Roadmap for Multimodal and Accessible Travel Standardization Work

Summary Information

To foster the continued growth of multimodal, on-demand, and accessible transportation technologies and guarantee that all travelers' needs are met, there is a pressing need to expedite the development of standards to ensure inclusivity and equal opportunities for all individuals. This study presented Roadmap for Multimodal and Accessible Traveler (MAT) Standardization Work, which proposed a strategy supporting standards development by identifying actions that help developers and consumers achieve fully accessible travel across modes and trip segments. These actions addressed gaps that were identified in the standards areas, including mobility platform application programming interfaces (APIs), wayfinding and navigation, safety, integrated payment, curb access and management, and data representation of the Public Right of Way (PROW). The criteria used to select actions included a needs assessment, the opportunity for wide deployment, ongoing efforts and advocacy by standards development organizations (SDOs) and advocacy organizations, and existing legal protections for vulnerable road users (VRU). The roadmap was aimed to fill gaps in the deployment and interoperability of MAT systems envisioned by the USDOT’s “Complete Trip” and “Complete Streets” concepts. 

 

This study included lessons for data dictionary /taxonomy and harmonization, use case and data exchange specifications, reference architectures and service packages, specifications for PROW and shared use paths and conditions, transit sign manual, wayfinding and navigation sensors and communications, VRUs in the connected to everything environment, automated wheelchair securement, training, and innovation and research. The Table below was excerpted from the source report and highlights the recommended lessons for wayfinding and navigation via sensors and communications and VRUs in the connected to everything environment.

Selected Recommendations from MAT Standardization Work:

 

Table1 - Wayfinding and Navigation via Sensors and Communications

Time Horizon
Recommendations  
Short 
  • Study the use cases and requirements for the functions, interfaces, performance, and security that the users will need.
  • Create communication standards between devices for both indoor and outdoor wayfinding and navigation that include information, application, and presentation layers.
Medium 
  • Finish development of communication standards.
  • Create standards for testing and conformance.
  • Deploy pilots to test standards.
Long
  • Create implementation plan for standards including operations, maintenance, and replacement.
  • Create open-source software tools and APIs to speed up deployment
  • Ensure compliance via testing labs

 

Table 2 - VRUs in the Connected to Everything Environment

Time Horizon
Recommendations  
Short 
  • Create standards for basic safety messages (BSM) and Personal Safety Message (PSM) for non-light duty vehicles to allow for vehicle safety applications to communicate between all vehicle types.
  • Create PSM accuracy performance requirements for trajectory information in motorized vehicles and non-motorized vehicles.
  • Ensure mobile device communications are included in Cellular-V2X (C-V2X) with gateway standards.
  • Pilot test personal safety devices (PSD) for wheelchairs 
  • For connected crosswalk, consult USDOT “Complete Trips” vision to create consistent implementation recommendations for standards. 
  • Consult Advocacy Groups to create standards that are consistent with existing efforts.
  • Create standards for each VRU which align with SAE safety specifications.
Medium 
  • Implement mobile device inclusion testing.
  • Consider wearable technology when updating PSD standards.
  • Consult SAE V2X Steering Committee to create coherent standards for cooperative perception. 
Long
  • Consider new technologies when updating standards for PSD.

 

 

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