flowchart LR A["Download<br/>Spanish ODD<br/>Data"] --> B["Filter Catalonian<br/>data with custom<br/>bounding box"] B --> C["Generate<br/>Interactive<br/>flow map"] C --> D["Study<br/>Spain-France<br/>border flow"] D --> E["Comparison of<br/>hourly trip volumes<br/>in the cross-border<br/>region"] style A fill:#1a1a2e,stroke:#e74c3c,color:#ffffff,stroke-width:3px style B fill:#1a1a2e,stroke:#e67e22,color:#ffffff,stroke-width:3px style C fill:#1a1a2e,stroke:#f1c40f,color:#ffffff,stroke-width:3px style D fill:#1a1a2e,stroke:#2ecc71,color:#ffffff,stroke-width:3px style E fill:#1a1a2e,stroke:#3498db,color:#ffffff,stroke-width:3px



