Which geometry type would best represent a road network?

• A. Points
• B. Lines
• C. Polygons
• D. Polylines

Answer: (B)

Roads are paths, not areas or points. To model a network you need the actual routes and how they connect at intersections, which is captured by line-based features. A road can be represented as a polyline—a connected sequence of line segments—that together forms the path of the road. This line geometry supports topology and routing, letting you see how roads join and form networks. Points would only mark locations, and polygons would describe areas, not routes. So the line-based representation best models a road network.