In article . com,
Jay Honeck wrote:

(Anyone know how accurate it is to be flying a VOR
radial say, 30 miles from the VOR station? Is it a mile? A half
mile? 1000 feet? I have no idea...)

iirc - an airway is 8 miles wide.

btw - accuracy is one thing, but remember, inaccuracy of VORs, for example,
just means more airspace has to be protected. That protection includes
obstacles (man-made and natural) and other airplanes.

--
Bob Noel
(goodness, please trim replies!!!)