Methods, systems, and computer-readable media are provided to determine a route through a predefined space. A first path from a source location to a common path within the space is determined, as well as a second path from a destination location a common path. If a shared path, which is the part of the first path which overlaps a portion of the second path, exists, it is excluded. If any portion of the common path separates the first and second path, it is included. A route is returned which is the combination of the remaining path segments.