Section: 5.2.2 Scenario
Content: Several UAVs are making deliveries to an office block simultaneously. They are each registered with the UTM. Each UAS is transmitting accurate positional information, which may be supplemented by the service MNO, to the UTM. The UTM has agreed their route data with the authorization to operate. The UTM offers a UCAS service. The UAS provides the UTM with its live location. The UTM may receive location information related to manned air traffic. When the UTM detects that there is a danger of loss of separation between a UAS under its control and a manned aircraft the UTM may issue a course change commend to the appropriate UAS. As the UTM notices that the multiple UAVs pass some metric of proximity defined by speed of aircraft, density of airspace, etc. and decided to intervene to help prevent any collision. The UTM sends a notification message towards UAV controller to warn for possible collision. If after notification message there is no change of behaviour of UAV the UTM may send route change data to the UAS. The route modifications are transmitted to each UAS and are incorporated into the planned routes of each UAS.