Light Transport; Low Wing; 2 Turbojet Eng
Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine; Flight Crew Instrument
Flight Crew Last 90 Days 150; Flight Crew Total 22000; Flight Crew Type 4000
Situational Awareness
Conflict NMAC
General None Reported / Taken
Human Factors
For years I have seen student pilots overshoot final when landing on the parallel runway at Centennial airport. More then a few close conflicts have occurred during the landing phase while I was on final approach. The recent mid-air collision at that airport was overdue; and it will happen again.  During my last visual approach to APA; Aircraft Y was on base at a collision course with my Aircraft X and we only saw it at the last second while it was turning finial.  A staggered spacing controlled by the tower controller would make things much safer.  At least staggering small aircraft to turn base after passing traffic on final would end the inherent danger.
Corporate jet pilot reported an NMAC with a small aircraft on approach to APA airport.