Explore our documents
ITxPT is committed to advancing open architecture, data accessibility, and interoperability between IT systems in public transport. Our community develops specifications and best practices collaboratively.
This page provides access to ITxPT technical specifications, guidelines, governance documents, and supporting material. Most technical documents are maintained in our Documentation Center (Wiki) and are available to registered users. Some resources are publicly accessible, while others require ITxPT membership.
📘 Technical documents
Official ITxPT technical specifications and reference documents. These documents define interoperability requirements and are available in the ITxPT Documentation Center (Wiki).
Technical Specifications (TS)
Get all the current detailed specifications developed from functional requirements for a deeper understanding and implementation in your architecture.
- S00- General Architectural Requirements
- S01-Installation Requirements
- S02P00-Networks and Protocols
- S02P01-Inventory
- S02P02-Time
- S02P03-GNSSLocation
- S02P04-FMStoIP
- S02P05-VEHICLEtoIP
- S02P06-AVMS
- S02P07-APC
- S02P08-MADT
- S02P09-MQTTbroker
- S03P01-TiGR
- S04P01- Active Inventory Service Overview
- S04P01N01- AIS Topics and Processes
- S04P01N02- AIS Data Definitions
- S04P01N03- AIS Formal Requirements
- S04P02N01- MQTT Broker
- S04P02N02- MQTT Client
- S04P03- Journey Monitoring
- S04P04- Logon
- S04P05- Passenger Counting
- S04P06N01- VL GNSS Data
- S04P07N01- Validation Counting
Functional Requirements
- Heavy Rail
- Electric vehicle
- Virtualisation
- Login service
- Demand Responsive Transport
- Ticketing
- Cyber security
- Journey Monitoring
- Navigation support
- Vehicle location
- Power management
- Signal traffic light priority

Reports
The ITxPT Requirements Committee identifies the next hot topics most requested by members and provides key information on the application context and best practices shaping current and upcoming specifications.
Pre-studies
- Demand Responsive Transport
- Interface to support drivers and other personnel for operational purposes
- Multi-modal Integrated Ticketing
- Signal traffic light priority
- Update of the S01 (hardware) specification
- Interface to support driveR and other personnel for operational purposes
Executive Summary
A clear guide to ITxPT specifications—what they are, how to use them, and how they streamline your next tender and de-risk your technology projects.
Tender Guidelines
A practical guide to procuring modern, open solutions, helping you avoid costly vendor lock-in and technology dead-ends.
