Road signs

The Road sign type (TrafficSignDatasetDTO) represents the road signs cataloged, with a particular focus on parking-related signs.

Description

Road signs provide crucial information about parking regulations: bans, restrictions, paid zones, and more.

Parking-related signs

• No parking
• No stopping or parking
• Paid parking
• Blue zone (parking disc)
• Accessible parking
• Loading zone
• Parking hours

Properties

Identification

Property	Type	Description	Example
id	string	Unique identifier	ts_d5e6f7a8b9c0d1e2
layer_type	string	Document type	traffic_sign
h3_index	string	Parent H3 cell	893b0c6a9a7ffff

Location

Property	Type	Description
location	GeoPoint	Estimated GPS position of the sign { lat, lon }

Classification

Property	Type	Description	Example
sign_type	string	Sign type (automatic transcription)	no_parking, paid_parking
text	string	Text read on the sign (if legible)	8am-7pm except Sun.
parking_related	boolean	Parking-related sign	true

Traceability

Property	Type	Description
source_type	string	Source imagery type (street_level: ground-level imagery, satellite_hd: satellite imagery)
captured_at	datetime	Date of the source imagery

Quality

Property	Type	Description
fit_score	number	Confidence score (0-1)

Sign types

Parking signs

Type	Description	Highway Code
no_parking	No parking	B6a1
no_stopping	No stopping or parking	B6d
paid_parking	Paid parking	B6b3
blue_zone	Blue zone (parking disc required)	B6b4
disabled_parking	Accessible parking	B6d + M6h
delivery_zone	Loading zone	B6b1
time_limited	Time-limited parking	B6b2

Other common signs

Type	Description
speed_limit	Speed limit
stop	Stop
give_way	Give way
one_way	One way
dead_end	Dead end

The parking_related field

The parking_related field lets you quickly filter parking-related signs:

-- WFS Filter
parking_related = true

This flag is true for every sign that affects parking:

• Parking bans
• Regulated zones
• Parking lot signage

Use cases

Regulatory mapping

Use road signs to:

• Identify no-parking zones
• Locate paid zones
• Spot regulatory accessible spaces

Data validation

Cross-reference signs with parking areas to:

• Confirm parking bans
• Identify inconsistencies (spaces in a banned zone)
• Enrich zone metadata

Regulatory studies

Analyze signs to:

• Map regulated zones
• Assess signage coverage
• Plan new equipment

Recommended QGIS style

Signs are displayed in red (triangles) by default:

1. Download the style file: traffic_signs.qml
2. In QGIS: right-click the layer → Properties → Symbology
3. Style → Load Style → select the .qml file

Download and styling guide →

GeoJSON example

{
  "type": "Feature",
  "properties": {
    "id": "ts_d5e6f7a8b9c0d1e2",
    "layer_type": "traffic_sign",
    "h3_index": "893b0c6a9a7ffff",
    "sign_type": "no_parking",
    "text": "8h-19h sauf dim.",
    "parking_related": true,
    "source_type": "street_level",
    "captured_at": "2025-01-10T09:45:00Z",
    "fit_score": 0.91
  },
  "geometry": {
    "type": "Point",
    "coordinates": [55.48, -21.12]
  }
}

Relation to other types

Type	Relation
Parking areas	Signs define the regulations for parking areas
Road segments	Signs are located along road segments
H3 cells	Aggregation by hexagonal zone

Limitations

Coverage

Sign coverage depends on the zones mapped and the quality of the available sources.

Interpretation

The text extracted from signs (text) is an automatic transcription. For a precise legal interpretation, always refer to the signage on site.