Overview
ISO/TS 18234-7:2013 - part of the ISO/TS 18234 series - defines the TPEG1 Parking Information (TPEG1‑PKI) binary data format for delivering parking information as part of Intelligent Transport Systems (ITS). The specification describes how parking data (location, capacity, features, status, fees, etc.) are encoded in the TPEG generation‑1 binary stream so that a wide range of receivers (digital broadcast, internet, in‑vehicle and mobile devices) can present information textually, voiced or graphically.
Key Topics
- TPEG1 binary format and framing: service component frames and message stream organization following TPEG1-SSF conventions.
- Message components: structure and semantics for the Parking Message, including containers such as MessageManagement, ParkingLocation, ParkingSiteDescription, CurrentCapacity, ExpectedCapacity and Advice.
- Tables and code lists: standardized value tables (pki001…pki022) for VehicleType, ParkingType, UserType, FuelType, AvailableFeatures, ParkingStatus, PaymentMethod, Advice, Tendency, FeeType, and more - enabling interoperable encodings.
- Binary data types and SSF: normative annexes define binary SSF, primitive and compound data types, syntax representation and indexing rules for reliable encoding/decoding.
- Message Management Container (MMC): multipart and monolithic message handling for message lifecycle, sequencing and multi‑part distribution.
- Design principles and transport: guidelines for toolkits, external definitions and adapting TPEG streams to different bearers (broadcast, IP).
Applications
ISO/TS 18234-7:2013 is intended for practical use in:
- Real‑time parking guidance systems (in‑vehicle navigation and roadside displays).
- Mobile and web parking apps that consume standardized parking data feeds.
- Broadcast and IP service providers distributing parking and travel information via DAB, DVB, cellular or internet channels.
- Municipal traffic management and smart‑city platforms integrating parking availability and fee/operational data.
- OEMs and telematics suppliers implementing TPEG receivers and data decoders.
Who uses it: ITS system architects, broadcasters, navigation/infotainment vendors, app developers, data aggregators, municipal traffic authorities and standards integrators.
Related Standards
ISO/TS 18234 is a multipart family; relevant companion parts include:
- Part 1: TPEG1‑INV (Introduction, numbering and versions)
- Part 2: TPEG1‑SSF (Syntax, semantics and framing)
- Part 3: TPEG1‑SNI (Service and network information)
- Part 4: TPEG1‑RTM (Road Traffic Message)
- Part 5: PTI (Public Transport Information)
- Part 6: Location referencing
- Parts 8–11 covering congestion, compact events, conditional access and location containers
Adopting ISO/TS 18234-7:2013 (TPEG1‑PKI) ensures interoperable, codec‑efficient delivery of parking data across broadcast and IP channels, improving consistency and usability of parking information in ITS applications.
Open preview (PDF)Intelligent transport systems — Traffic and travel information via transport protocol experts group, generation 1 (TPEG1) binary data format — Part 7: Parking information (TPEG1-PKI)
