I may have posted this before but....
Concord, CA airport was first and perhaps last FAA effort to incorporate a
warning ground system using the marker frequency to advise aircraft of
'hotspots on the airport. It used underground wiring but never seemed to
work properly and was usually out of service.

I wrote to an FAA official who found my web site 'interesting' about the
possibility of putting on the taxiways eight inch ground numbers giving
magnentic headings of taxiways. he rejected the suggestion out of hand.
The next day I found an FAA agency was considering just such an idea.
Reminds me of our national security
systems inability to communicate.

Gene Whitt
"aaronw" wrote in message
...
On Thu, 12 Aug 2004 14:55:27 GMT, "John Bell"
wrote:

I think that GPS can be helpful for airport ground navigation and
avoiding
runway incursions. For some reason, I never see this mentioned in any of
the material on runway incursion. It's not perfect, but if you have one
in
the cockpit it might help you maintain situational awareness on the
ground.

Anyway, here is something that I put together very quickly last night.

http://www.cockpitgps.com/incursion/..._incursion.htm

BTW - This exact situation is covered with in ASF's new runway
incursion flash animation:


http://flash.aopa.org/asf/runwaySafe..._expanding.htm

Choose Chapter 5, then button number 9

aw