I want to create a dummy airport layout based on the image given below:enter image description here.

The purpose with the map later on is to introduce different flights (agents) and use a pathfinding algorithm to let the agents traverse through the map according to some conditions given.

I tried defining rectangles and collisions with Pygame to define the map, but it seems like a tedious process. Are there any better ways to generate a map like this? How about Unity Engine?