1. A computer readable medium storing computer-executable instructions for: processing data defining boundaries of a first geographic area and a first travel rule that is associated with the first geographic area, the first travel rule modeling traffic conditions within the first geographic area during a first time window; processing data defining boundaries of a second geographic area at least partially overlapping the first geographic area, wherein an area within both the first geographic area and the second geographic area defines an overlapped geographic area; processing a second travel rule that is associated with the second geographic area, the second travel rule modeling traffic conditions within the second geographic area during a second time window; processing the first time window and the second time window to determine that the first time window and the second time window overlap at least in part; determining whether the first travel rule or the second travel rule should be applied to one or more vehicles traveling through at least a portion of the overlapped geographic area; applying the first travel rule or the second travel rule based on the step of determining.