LTA road marking GIS data in this collection maps arrow markings that direct traffic flow and junction interactions across Singapore’s road network. GEOJSON and KML datasets LTA Arrow Marking support traffic engineering, microsimulation, and navigation research. Developers building drive guidance layers can overlay official arrow geometry with lane and junction datasets. Updates follow an ad-hoc publication cycle on Data.gov.sg.
Official description
An arrow painted on the roadways, directing the flow of traffic and the interaction of the driving environment.
Land Transport Authority GeoJSON of directional arrow markings painted on Singapore roadways, with source coverage dated 5 October 2025. The geospatial layer identifies lane-guidance features that direct traffic movement and vehicle interaction at approaches, junctions, and other road segments. Transport planners, road-asset managers, navigation developers, and GIS analysts can map arrow markings alongside lanes, signs, and intersections for network inventory and safety analysis.