CPR - Correlated Position Report

CPRs are positional reports that the ATC surveillance systems transmit to NM . They are named “correlated” because the 4D position (longitude, latitude, altitude and timestamp) is augmented with flight information such as CALLSIGN, ADEP , ADES and ICAO 24-bit address. The positional data typically come from primary radar feeds (but they could be fused with ADS-B/Mode S downlink messages.)

NM uses CPRs to update the trajectories of airborne flights in order to continuously refresh the airspace occupancy counts in its area of responsibility. FMPs can then evaluate whether the demand in their sectors/areas is above capacity and eventually call for ATFM measures .

See Also