OK - change made at changeset/40611879

See discussion at changeset/36774727 regarding increase in layer (nearby way/39196209 is footbridge, covered by these roads, but not connecting with these roads)

The construction=minor tag was added 3 years ago. I don't recall any work when I went through a year ago., so it should be safe to delete this tag.

Just letting you know that I have corrected the junction of Willow Vale Road. See changeset at changeset/37053627. Note current imagery (Bing, Mapbox and LPI) is out of date.

I'm just letting you know that I have reverted this section of the Great Western Highway to 'trunk'. Reasons: Route number is 'A32' (rather than 'M32'). There are several at-grade intersections. There is direct access to properties from this road (including houses and a fuel station). Please see discussion on the talk-au mailing list for more info.

I've checked my voice recording from my recent trip - Willow Vale Road definitely does not join Princes Highway.

Just a note about Willow Vale Road - I think it doesn't joint the highway here (just the ramp). If you use imagery, it may be the old imagery taken just prior to the newly-opened reconstructed highway. (LPI imagery still shows the old highway.)

Regarding tagging of asphalt roads: the Australian tagging guidelines state "you don't need to specify the surface=paved key/value pair as this is assumed" - this is not the same as saying we don't tag asphalt (etc) for paved roads. I think the asphalt tag should be replaced. If the tag is missing, it isn't clear if the road is paved, or if no-one has bothered to check the surface.