Land Transport Authority (LTA) provides geospatial open data on vehicular bridges, underpasses, and flyovers across Singapore’s road network. The collection bundles GEOJSON and KML layers named LTA Vehicular Bridge/Underpass/Flyover for mapping and transport planning. GIS teams can overlay structures on base maps when studying connectivity, maintenance, or corridor design. Quarterly updates support ongoing spatial inventories of elevated and underground road assets.
Official description
A raised or underground road structure for the smooth movements of vehicular traffic
This LTA GEOJSON layer maps vehicular bridges, underpasses and flyovers in Singapore. These raised or underground road structures support smoother movement across the transport network. The dataset can be used for infrastructure mapping, route and connectivity studies, asset planning and other spatial analysis.