[Scan-DC] Ground metering question

[Tobias, Ed]

>>Also I picked up a ?new? "Ground metering channel" for Dulles which was
ID'd
>>as 124.075.
>>A/C would switch from that to Clearance Delivery on 135.7 then back to
124.075.
>>Anyone know what that's about?

I believe that "Ground Metering" controls the flow of aircraft pushing back
from their gates.  The process would be: The aircraft gets its flight plan
approved via Clearance Delivery, switches to Ground Metering for approval to
"push, " switches to  Ground Control as it moves out of the "alley" behind
the gates and onto the taxiway, then to Tower frequency once the aircraft
reaches the departure end of the runway.  I've listed to "metering" several
times while sitting onboard United Airlines flights departing Dulles.

ET


--- StripMime Report -- processed MIME parts ---
multipart/alternative
  text/plain (text body -- kept)
  text/html
The reason this message is shown is because the post was in HTML
or had an attachment.  Attachments are not allowed.  To learn how
to post in Plain-Text go to: http://www.expita.com/nomime.html  ---