Definition
Functional Requirements
Syntax
Semantics
Conformance Testing
Performance Assessment
1 Definition
Representation of Traffic Sign-related objects of a Location.
2 Functional Requirements
The types of Traffic Sign-related objects of a Location are:
- Traffic Policeman
- Horizontal Road Signs on the road (lanes, turn right/left, one way, stop signs, words).
- Vertical Road Signs above the road (signs on poles, signs on objects).
- Traffic lights
- Audio Signs (siren, whistle, horn, uttered words).
3 Syntax
https://schemas.mpai.community/CAV2/V1.1/data/TrafficSignObject.json
4 Semantics
| Label | Description |
| Header | Traffic Sign Object Header – Standard “CAV-TSO-Vx.y” |
| TrafficSignObjectID | Identifier of Traffic Sign Objects. |
| TrafficSignObject | Traffic Sign Object dataset. |
| – Location | Location containing Traffic Sign Objects. |
| – TrafficObjects[] | Set of Traffic Objects. |
| – TrafficObject | Individual Traffic Object (Perceptible Entities). |
| – SpatialAttitude | Traffic Object’s Spatial Attitude. |
| – TextObjects[] | Text Objects related to the Traffic Object. |
| – TextObject | A specific Text Object. |
| – SpatialAttitude | Text Object’s Spatial Attitude. |
| – PriorityInformation | One of Police, Ambulance, Hazard. |
| DataXMData | MPAI-PTF Data Exchange Metadata providing provenance, authorisation, legal, security, and confidence information associated with this Traffic Sign Object instance in a trusted data exchange context. |
| DescrMetadata | Human-readable descriptive metadata of the Traffic Sign Object instance (plain text, max 2048 characters). |
5 Conformance Testing
A Data instance conforms with Traffic Sign Object (CAV-TSO) if:
- The Data validates against the Traffic Sign Object JSON Schema.
- All Data in the Traffic Sign Object JSON Schema:
- Have the specified type.
- Validate against their JSON Schemas.
- Conform with their Data Qualifiers.
6 Performance Assessment
Not part of this specification.
