Overview
ISO 21219-14:2023 - "Intelligent transport systems - Traffic and travel information (TTI) via transport protocol experts group, generation 2 (TPEG2) - Part 14: Parking information (TPEG2‑PKI)" specifies a standardized application for delivering parking information to a wide range of receivers over multiple channels (notably digital broadcasting and Internet technologies). The standard defines how parking data (text, voice or graphics) is structured, updated and encoded so service providers, navigation systems and consumer apps can present consistent, timely parking guidance that helps reduce urban congestion and support event parking.
Key technical topics and requirements
- TPEG2 application constraints and signalling
- Application identification, version number signalling, ordered components and extension rules for reliable TPEG2 use.
- TPEG service component framing
- Rules for embedding parking information within TPEG2 service component frames.
- PKI message components
- Defined message elements include ParkingMessage, ParkingLocation, ParkingSiteDescription, ParkingInfo, Logo, Contact, ParkingSpecification, GateInfo, OpeningHours, PricingPayment, PaymentDetails, Facilities, CurrentCapacity, ExpectedCapacity, Advice and related container/link constructs.
- Data elements for dynamic and static attributes
- Support for static details (site description, facilities, opening hours, payment methods) and dynamic updates (current capacity, expected capacity, status, tendencies).
- Taxonomies and code tables
- PKI tables (vehicle types, parking types, user types, fuel type, available features, reservability, facility/security types, payment methods, parking status, etc.) provide standardized vocabularies for interoperable decoding.
- Representations
- Normative binary representation (TPEG‑binary) and tpegML representations are specified (see Annex A and B).
- Extensibility and updates
- Mechanisms for linking message management containers and parts to support partial updates and event‑driven changes (e.g., temporary event parking).
Applications and practical value
- Navigation and in‑vehicle systems: supply location, availability and routing to nearest suitable parking, displayed as text, voice prompts or map graphics.
- Traffic management and congestion relief: timely parking availability reduces cruising traffic and emissions in urban centers.
- Parking operators and municipalities: publish unified feeds for site profiles, pricing, opening hours, gate info and dynamic occupancy.
- Mobile apps and third‑party service providers: integrate standardized TPEG2‑PKI feeds to offer multi‑source parking search, booking and payment guidance.
- Event organizers: signal temporary facilities and special event parking conditions to visitors.
Who should use this standard
- ITS implementers, TTI service providers and broadcasters
- Automotive OEMs and navigation-platform vendors
- Parking operators, municipal transport planners and smart city solution integrators
- App developers and data aggregators offering parking search, reservation or payment services
Related elements and SEO keywords
Relevant items referenced in the standard include TPEG2, TPEG‑binary, tpegML, PKI message components and PKI code tables. Use keywords such as ISO 21219-14:2023, TPEG2 parking information, intelligent transport systems, parking availability data, traffic and travel information (TTI), parking guidance and smart parking integration when searching for or implementing this standard.