Overview
ISO 13111-2:2022 specifies the data exchange protocol and general requirements for communications between personal ITS stations (P-ITS-S) and other ITS stations to support traveller-facing services. Part 2 builds on the personal ITS station concept in ISO 13111-1 and the ITS architecture in ISO 21217 / ISO 13184, defining message structures, use-case implementations and interaction interfaces for multimodal transportation and navigation services for drivers, passengers and pedestrians.
Key Topics
- Data exchange protocol: General requirements for exchanging service requests and responses between P-ITS-S and other ITS stations.
- Use case clusters: Detailed implementations for common traveller services, including:
- Positioning and roadside access (P-ITS-S ↔ R-ITS-S)
- Multimodal and slow-transport information
- Safety evacuation and emergency services
- Parking and parking-lot navigation
- Integrated transportation hub transfer services
- Traffic and public transport information via P2C/P2R interfaces
- Trip planning and multimodal navigation
- Vehicle services (P2V), location sharing and team travel
- Message set definitions: Named message elements and payloads (for example: get_positioning, local_transportnetwork, planning_route, request_vehicle_status, surrounding_parking_info) that enable consistent implementation of ITS applications.
- Interaction interfaces: Standardized interaction models such as P2V, P2C, P2R and P-ITS-S/R-ITS-S to support interoperability across devices and infrastructure.
- Architecture alignment: Conformance with the ITS reference architecture (ISO 21217) and personal station definitions (ISO 13111-1).
Applications
ISO 13111-2 is intended for organizations implementing traveller-centric ITS services and multimodal navigation:
- ITS solution developers building apps that rely on personal ITS stations for route planning, real-time transport information and pedestrian navigation.
- Transport agencies and mobility service providers integrating roadside infrastructure, hubs and parking systems with traveller devices.
- Automotive and device manufacturers implementing P2V interactions for vehicle status, remote control and location services.
- Smart city and infrastructure vendors ensuring interoperable data exchange between roadside units, transit systems and traveller devices.
Practical benefits include interoperable multimodal trip planning, improved accessibility and consistent emergency/evacuation messaging.
Related Standards
- ISO 13111-1 (personal ITS station - concepts and requirements)
- ISO 21217 (ITS station architecture)
- ISO 13184 (related ITS architecture elements)
By following ISO 13111-2:2022, implementers ensure consistent, interoperable intelligent transport systems messaging for traveller services, enabling reliable multimodal navigation, parking and safety applications across devices and infrastructure.