In common terms, the flow of a map is describing how a map feels while navigating through it. Some cases which effect the flow are:
When a map has no flow, it means most of the times that it lacks some of the criteria which is listed in the next couple of aligns. Keep in mind that when you ignore some of the criteria, you may risk some serious flow issues on your map.
The last (August) Mapping competition turned out to be a bust, and I'll admit this is partly my fault for screwing up the last one so badly, but also due to the fact that it is so difficult to follow and enter.
Due to the poor turnout, only one map was officially submitted in time, which wins by default. I will be endeavouring to automating the competition process somewhat during a redesign of some of the systems here on Quadropolis (you may have already noticed some of these improvements), utilising the rating system. Suggestions and comments on this are more than welcome.