In order to control civil traffic at crossroads, traffic light circuits are also required in EMERGENCY 4. The operation and possible constellations are discussed in the following section.
The foundation of every game world forms a basic texture, the so called groundtexture. All graphic details of the map are drawn in a large image file. This serves as a visible "ground" of the map.
For the movement of vehicles and civilians fixed paths are necessary, which mark the walk- and streetways. In contrast, operational vehicles are moving towards Streets.
In order to give the world of the game plastic structures and to create a realistic impression, the terrain has to be worked through by raising and lowering the landscape. For this purpose, the editor provides various extensive tools.