Validators
Tools and services that check the structure and quality of mobility and transport data, ensuring it complies with European standards such as DATEX II, NeTEx, SIRI, and mobilityDCAT-AP.
What Are Validators?
Validators automatically verify whether datasets conform to technical and business specifications. They are essential for maintaining data quality, interoperability, and regulatory compliance in digital mobility ecosystems.
Validators typically perform:
- Schema validation – Checks if files match required XML, JSON, or RDF schemas (e.g., XSD, JSON Schema)
- Business rule validation – Tests domain-specific logic, cardinality, or value constraints
- Data quality checks – Detects missing, inconsistent, or implausible values
- Compliance checks – Confirms datasets meet European standards for publication or exchange
Types of Validators
| Type | Description |
|---|---|
| Schema Validators | Validate structure and syntax against XSD/JSON schemas |
| Business Rule Validators | Apply rules beyond the schema (e.g., logical consistency) |
| Multi-standard Validators | Handle several transport formats together |
| Geographic Validators | Verify geospatial and reference integrity |
Common Use Cases
Pre-Publication Validation
Ensure datasets comply with DATEX II, NeTEx, or mobilityDCAT-AP before submission to a National Access Point (NAP).
Development & Testing
Integrate validators in your CI/CD workflow to catch schema or logical errors early.
Quality Monitoring
Run scheduled validations to monitor dataset quality and detect degradation over time.
Location Reference Validation
Validate ALERT-C or RDS-TMC location codes for correctness and alignment with reference tables.
Example Tool: ALERT-C Locations Tester
The ALERT-C Locations Tester validates the consistency and correctness of location codes used in traffic messages.
- Operational use: Czech Road and Motorway Directorate
- Multi-format support: DATEX II, RDS-TMC, custom XML
- European coverage: ALERT-C widely used across Europe
- License: Open source (MIT)
Related Categories
Available Tools
ALERT-C Locations Tester
Location Reference Validator
Validation tool for ALERT-C location references in RDS-TMC and DATEX II traffic information