The image depicts a computer-generated, digital map or plan of a city's infrastructure. The map is divided into various sections, each representing different types of transportation or infrastructure. The map includes:

1. **Green Lines**: These represent underground tunnels or underground transportation systems.
2. **Red Lines**: These likely indicate surface roads or highways.
3. **Blue Lines**: These could represent rail lines or other forms of public transportation.
4. **Yellow Lines**: These might represent pedestrian paths or other non-transportation-related areas.

The map is detailed and organized, with clear demarcations between different types of infrastructure. The green lines are prominently displayed in the middle section, indicating underground tunnels or underground transportation systems. The red lines are spread across the map, suggesting surface roads or highways. The blue lines are scattered throughout, possibly indicating rail lines or other forms of public transportation. The yellow lines are also present, potentially representing pedestrian paths or other non-transportation-related areas.

The map appears to be