Overview
ISO/TS 21192:2024 - Electronic fee collection - Support for traffic management - defines an architectural and data-exchange framework that enables tolling systems to actively support traffic management. The Technical Specification describes how a Toll Charger (TC) and a Road and Traffic Manager (RTM) exchange information such as Level of Service (LOS), tariff schemes, and traffic data (vehicle probe and flow data) so tolling can be used as a tool for congestion mitigation, travel demand management and emissions control.
This second edition (2024) updates data definitions and aligns terminology with ISO/TS 17573 parts and related ITS standards. It does not prescribe communication stacks or timing requirements, nor does it mandate implementation-specific mandatory/optional elements.
Key topics and requirements
- Architecture & role model: Describes roles and responsibilities of TC and RTM and their interactions for traffic-management objectives.
- Data flow model: Standardized model for exchanging LOS, tariff schemes, real-time toll information, and road usage data between TC and RTM.
- Transactions and messages: Framework for messages such as LOS updates, TariffScheme proposals, RealTimeTollInformation and RoadUsageData to support dynamic tolling and operational decision-making.
- Privacy and data quality: Principles and considerations for protecting personal data and ensuring data fitness for traffic-management and tolling use.
- Conformance & data types: Annexes provide data type specifications (Annex A) and an implementation conformance statement proforma (Annex B).
- Scope limits: The specification intentionally excludes communication stack definitions and timing constraints.
Practical applications and users
ISO/TS 21192:2024 supports real-world deployments where tolling contributes to traffic and environmental objectives:
- Congestion pricing and dynamic tolling - link LOS targets to tariff schemes to influence route choice and demand.
- Managed lanes and HOV/HOT operations - coordinate toll rules with traffic managers for lane control.
- Smart route selection and route diversion - integrate toll signals with navigation to reduce central-area congestion.
- Emission control schemes - combine transit and toll data to implement low-emission strategies.
Primary users:
- Toll operators and charging authorities (TC)
- Road and traffic managers / transport agencies (RTM)
- ITS system integrators, software vendors and solution architects
- Policy makers, urban planners and transport modelers
Related standards
This Technical Specification references and aligns with other ITS and EFC standards, including:
ISO/TS 21192:2024 is useful where tolling is part of an integrated traffic-management strategy - enabling interoperable, privacy-aware data exchange and coordinated tariff-driven demand management.
