"Andre" wrote in message
One idea I had was to use GPS and a simple ethernet network topology to
allow planes to do some of the work themselves.

There are some other test programs in place similar to your idea. One is
ADS-B being tested in Alaska which has a lack of infrastructure. Already in
place is TIS. My C-414A has this installed and it is wonderful. The
compromise with it is when I go to the islands where the radar sites don't
send a TIS signal.

As for the runway incursion problem, Ground surveillence radar is being
tested in Providence (PVD) and Orlando (MCO). I hear that it is very
successful when combined with the new lighting program.

D.