Carborne ATP Systems Testing
For many years, PSA has been involved in the testing of rail signaling solutions critical for railroad safety. These are support activities, since every time the system is updated it is necessary to verify that the operability and functionality of its components were not affected. Thus, we support carborne ATP systems by checking their components for conventional, CBTC, and ETCS systems in rapid transit across the world.
Provide updates, changes, and addition of new elements for carborne ATP systems without compromising safety.
Support the operation of carborne ATP systems after changes to characteristics or components within the system.
In strict adherence with Cenelec and FRA standards, we have completed over 50 projects on software testing of carborne ATP systems for rapid transit worldwide. After system updates, our team checks whether ATP/ATO still can perform its critical functions, such as:
To check the required system modules, we mainly utilize unit & regression testing with a white box methodology using VectorCAST tool. This allows us to verify the execution of business logic to ensure the safe movement of the train within the Movement Authority Limits.
PSA carries out all the required procedures to provide a complete view of the system’s functionality – from test cases creation to report delivery and bug fixing. We also create software architecture and test specifications to provide 100% code coverage when necessary.
Our testing activities allow for:
Confirming the operability and integration of ATP subsystem
Verifying the differences between the original and updated software versions
Finding an alternative testing approach to provide more code coverage
Immediate response for issues that are found onsite
Thus, we provide testing support for many rail lines and often retest ATP modules every time they are updated.
- Requirements Analysis & Verification
- Test Specifications Creation & Updates
- Test Cases Creation & Updates
- Source Code Analysis
- Environment Compilation
- Execution of Test Cases
- Test Results Documentation
- Problem Report Documentation
- Bug Fixing
20 lines in US, Europe, and Asia are on continuous testing support
Сompliance with SIL 3-4
- 2 people
- 2 months on average