As drones increasingly move toward ubiquity, we don’t want them everywhere, but there is very likely a more logical way to determine where they can go. Mitchell Sipus, an urban planner doing doctoral research at Carnegie Mellon, has mocked up one idea that might be able to start to resolving some of that. He imagines the government beginning to create zoning rules specific to drones — as in, zones that they can fly in and can’t fly in, and other zones where flight might be allowed only during specific times of day when there are fewer people around.