Overview
ISO/TS 21219-13:2025 specifies the Public Transport Information Service (PTS) as part of the TPEG Generation 2 (TPEG2) suite of intelligent transport systems standards. The PTS application enables the delivery of core public transport information across all modes, supporting both inter-urban and intra-urban travel. It is language-independent and focuses on efficient one-way (broadcast/push) and two-way (request/response) communication from service providers to end-users.
This standard supports key use cases for modern mobility solutions, including the provision of alert information, current and scheduled timetables, and individual trip planning. By standardizing how information is structured and shared, ISO/TS 21219-13:2025 fosters interoperability across intelligent transport services and enables innovative public transport information delivery.
Key Topics
- Comprehensive Mode Coverage: The PTS application encompasses all collective transport types, such as railways, bus, air, metro, trams, and water transport.
- Core Use Cases:
- Alert Information: Distribution of urgent notifications about major disruptions or emergency situations, especially for a large number of travelers.
- Timetable Information: Delivery of scheduled or real-time timetable data, relevant for events or regular commuting, either broadcast or on-demand.
- Individual Trip Requests: Personal trip itinerary queries, enabled when a backchannel (two-way communication) is available.
- Compact, Language-Independent Data: Focuses on essential public transport details to ensure efficient communication without language barriers, excluding complex information like fare data.
- Flexible Communication: Supports both broadcast scenarios (one-to-many) and personalized queries (one-to-one) through the TPEG2 protocol.
- Standardized Data Structures: Defines specific message structures and data types for components such as lines, stop places, stop points, routes, and vehicle journeys to ensure seamless information exchange.
Applications
ISO/TS 21219-13:2025 enables several practical applications within intelligent transportation systems, mobility services, and traveler information platforms:
- Real-Time Traveler Information: Service providers can broadcast up-to-date alerts and timetable adjustments to a wide audience via radio, digital signage, or mobile apps.
- Personalized Travel Planning: Individuals can request tailored trip information, supporting multi-modal journeys through seamless integration with digital journey planning tools.
- Enhanced Urban Mobility: Cities and transit agencies benefit from harmonized data delivery, improving passenger communication during events, disruptions, or system changes.
- System Integration: Developers and device manufacturers can integrate standardized PTS data into navigation systems, journey planners, or mobility-as-a-service platforms.
- Disruption Management: Immediate and targeted alerts for emergencies or deviations, ensuring public safety and efficient passenger rerouting.
Related Standards
ISO/TS 21219-13:2025 is part of a wider family of TPEG2 standards for intelligent transport systems and interfaces with several other key documents:
- ISO 21219-1: Introduction, numbering, and application identification within TPEG2.
- ISO 21219-7: Location referencing, enabling accurate, map-based information.
- ISO 21219-9: Service and network information for robust public transport services.
- ISO 21219-14: Parking information service.
- ISO 21219-15: Traffic event compact application.
- CEN/TS 17118: Distributed journey planning API, referenced for harmonized terminology and concepts.
These related standards ensure interoperability across different intelligent transport information services, forming a comprehensive framework for public mobility, ticketing, and real-time service alerts.
Keywords: Intelligent transport systems, public transport information, TPEG2, ISO/TS 21219-13:2025, traveler alerts, timetable information, trip planning, digital mobility, transport protocol experts group, data interoperability, broadcast travel information.