"Matt Barrow" writes:

Where did you hear that this was a serious problem (for spam cans)?
And just in case it were a problem any given day, a controller who
sees a /G can issue a direct clearance as a "decongestant".

Why do you think the terminal areas on the East Coast are pushing RNAV
departures?

Are you able to answer with something other than a rhetorical question?
Of course RNAV departures or Q-routes or whatnot are good new option.
But that hardly is evidence of a serious congestion problem with
airways for spam cans.

From my limited personal experience, whenever I fly to/near a busy
airport, US class B included, terminal controllers prefer me on
standard routes even though my birdie is /G. They issue direct if
they wish and/or if I request en route. There has been no downside to
filing airways.

- FChE