What Does Multi-agent Path-finding Tell Us About Intelligent Intersections

: In this paper, we study the problem of an intelligent intersection. There are many studies that present an algorithm that tries to efficiently coordinate many agents in a given intersection, however, in this paper, we study the layout of the intersection and its implications to the quality of the plan. We start with two of today commonly used road intersections (4-way intersection and roundabout) and compare them with an intersection that is less restrictive on the movements of the agents. This means that the agents do not have to use predefined lanes or follow a prescribed driving direction. We also study the effect of granularity of the intersection. The navigation of the agents in a given intersection is solved as an instance of (online) multi-agent path-finding problem.