Core aerospace engineering and protocols for Stratified Altitude Skyways.
Allowing thousands of commercial drones to fly random point-to-point straight lines across a city creates crisscrossing collision vectors at every intersection, requiring complex decentralized conflict resolution that fails at high densities.
DeliveryInTheSky models low-altitude airspace like highway civil engineering: drones travel along pre-defined 3D skyway corridors stratified by altitude and heading. Aircraft merge onto airways using designated vertical ramps, maintaining high throughput with predictable traffic flow.