Road markings

The Road marking type (RoadMarkingDatasetDTO) represents the road markings on record: lines, symbols, and text painted on the carriageway.

Description

Road markings provide valuable information about parking regulations and traffic constraints.

Types of markings on record

• Solid and broken lines
• Parking lines (bay delineation)
• Zebra markings and hatching
• Directional arrows
• Symbols (accessible, bicycle, bus)
• Painted text (STOP, TAXI, etc.)

Properties

Identification

Property	Type	Description	Example
id	string	Unique identifier	rm_c4d5e6f7a8b9c0d1
layer_type	string	Document type	road_marking
h3_index	string	Parent H3 cell	893b0c6a9a7ffff

Location

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

Classification

Property	Type	Description	Example
marking_type	string	Marking type (see enumeration)	parking_space, zebra_crossing
color	string	Marking color	white, yellow, blue, green, other

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)

Marking types (marking_type)

Type	Description	Use
continuous_white	Solid white line	Lane delineation
dashed_white	Broken white line	Lane delineation
continuous_yellow	Solid yellow line	No-parking
dashed_yellow	Broken yellow line	Temporary restriction
zebra_crossing	Pedestrian crossing	Safety
stop_line	Stop line	Regulation
give_way_line	Give-way line	Regulation
parking_space	Bay marking	Bay delineation
blue_zone	Blue zone	Regulated parking
disabled_space	Accessible bay	Accessibility
ev_charging	Charging point	Electric vehicles
delivery_zone	Loading zone	Regulation
cycle_lane	Cycle lane	Active mobility
other	Other type	Miscellaneous

Colors (color)

Color	Common meaning
white	Standard marking
yellow	Prohibition, obstructive parking
blue	Blue zone (parking disc)
green	Active mobility, bicycles
other	Other color

Use cases

Field validation

Markings let you:

• Confirm the presence of parking bays
• Identify no-parking areas
• Identify accessible bays marked on the ground

Compliance analysis

Cross-reference markings with parking areas to:

• Check consistency between markings and data
• Identify bays without markings
• Assess the condition of markings (wear)

Asset inventory

Catalog markings to:

• Plan marking renewal
• Quantify accessible bays
• Audit horizontal signage

Recommended QGIS style

Markings are displayed in yellow (squares) by default:

1. Download the QGIS style file: road_markings.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": "rm_c4d5e6f7a8b9c0d1",
    "layer_type": "road_marking",
    "h3_index": "893b0c6a9a7ffff",
    "marking_type": "parking_space",
    "color": "white",
    "source_type": "street_level",
    "captured_at": "2025-01-10T09:45:00Z",
    "fit_score": 0.78
  },
  "geometry": {
    "type": "Point",
    "coordinates": [55.48, -21.12]
  }
}

Relationship with other types

Type	Relationship
Parking areas	Markings validate the mapped areas
Road segments	Markings are located along the segments
H3 cells	Aggregation by hexagonal zone

Limitations

Coverage

Markings are only available in areas covered by recent street-level imagery. Quality depends on the visibility and condition of the marking at the time of capture.