[talk-au] Question about route numbers

[Liz]

On Thu, 20 Aug 2009, Mark Pulley wrote:
> 1. When should I start using Alphanumeric numbers? For an example, the  
> Mid Western Highway between Bathurst and Cowra is currently NH24, but  
> some signs have shown A41 (now coverplated over by NH24). Should I use  
> the new A41 or the current NH24?
>
> http://www.openstreetmap.org/?lat=-33.4299&lon=149.5466&zoom=13
>
> For another example, when in Dubbo last weekend on the Mitchell  
> Highway, I spotted A32 on one intersection only, all the others still  
> showing NH32.

I did mark those as ref= and old_ref=
for example at christmas the signs at Cowra said A41

of course further west the signs are not coverplated
but the Mid Western is then B64 

so further west the system is coming in by stealth or sheer laziness on the 
part of the workers which seems appropriate somehow