PEOPLE WALKING ALONG ROADS

our city will soon have lots of different people wandering along its roads and paths. Citizens deliver their goods or services while walking the city's streets; understanding how that works is very important. T here are two types of journey. The first is a specific journey from point A to point B. For example, when a wheat farm harvests its crop, it sends a farm hand with a cart full of produce to a granary. The farmer tries to take the most direct route there, and also on his return journey with the empty cart.

The second type of journey is more like a patrol. An engineer's post, for example, sends out an engineer to walk for a certain distance, repairing any damage in the buildings he passes. Eventually, the engineer returns to his post. The next engineer sent out to repair buildings in the area tries to go in a different direction overall than the last patrol. This happens four times, with the first patrol trying to head North, the next East, the next South, and finally the last one West. This way, they try to visit all the buildings in their area.

But note that the more intersections there are along any one of those patrols, the less likely it is that the engineer will cover every building in his area. This means that you may need to provide more buildings to send out patrols in areas with complex road networks, to ensure that all buildings are covered.