Cities are complex, and that is not a bad thing. It means that understanding them requires looking at multiple layers and interactions simultaneously. We visualize the road network of major world cities to reveal these layers and interactions, providing a foundation for exploring urban complexity.

• Compare connectivity patterns across cities and identify where network density concentrates.
• Inspect community and divergence attributes to see where local structure breaks from broader flow.
• Use traversal mode to study how information and influence propagate from seed nodes.