[OSM-talk] routing - US interstate type junction -Wichita, KS

[Mike N.]

>  The problem connector is also named US81...etc, as well as containing the
> routing relation 135 South.   I believe that is what disrupted the 
> routing.

  A further clarification - the connection from 81 to 254 would be a 
secondary_link , since the road to which it connects is secondary.    If it 
connected with another motorway, the connecting road would be a 
motorway_link.

  A *_link way usually does not have a name except for unusual cases.

   As an option (not required for routing), if the connection to 254 is 
marked as an exit, you would place a motorway_junction and enter the name(s) 
as shown on the sign, separated by semicolons, and the exit number. 
Another option is to add a 'ref' tag to the secondary_link with just the 
exit number.   Eventually turn-by-turn instructions could make use of that 
information.