A computer system that manages traffic flow is described. During operation, the computer system may receive information specifying or corresponding to an estimated time of arrival of a vehicle at an intersection. Then, the computer system may receive second information corresponding to traffic conditions in an environment (such as traffic flows), where the traffic conditions are associated with one or more other intersections that input traffic to the intersection, that received output traffic from the intersection, or both, and at least a subset of the one or more other intersections are not along a route of the vehicle. Next, based at least in part on the estimated time of arrival and the traffic conditions associated with the one or more other intersections, the computer system may selectively modify traffic management in at least one of the one or more other intersections.