If there is a rationale use of this, than it must contain render rules. ref=* does not have enough information to make a set of render rules work. I am not sure if a network relation is the way to go, but rather a network=* tag with a logical value that refere to a table of render rules. --Skippern 11:47, 2 May 2009 (UTC)
Hiking, cycling, ...
How about hiking or cycling network who hasn't relations of type route ?
CU Sarge 11:57, 8 January 2010 (UTC)