Would be interested to read some thoughts on what we think should happen in terms of route numbering once this project goes ahead.
Info, for those not Perth-minded:
Start: Reid (SR3)/Tonkin (SR4) junction
Route: Northwards alongside Beechboro Rd (SR53) to Gnangara Rd (SR84) then curves north east to skirt Ellenbrook, then running parallel to the existing GNH (NR1/NH95) past Bullsbrook, joining the highway in the vicinity of Muchea.
End: Not exactly sure but I assume it will be just north of the Brand Hwy (NR1) signals
the biggest implication is how does this affect NR1 and NH95? Should they both be routed onto the new bypass and the GNH renumbered? Perhaps NR1 remains on the old and NH95 goes onto the new? Perhaps SR4 is simply extended northward and we have a similar situation to the NR1/SR2 arrangement around Mandurah?
SR4 is obviously the easiest option is it involves minimal thinking and minimal changes to existing signs, however I'm not entirely sold on the idea.
Thoughts?