[talk-au] Newcastle to Ballina Pacific Highway classification

[Ewen Hill]

I would define an Australian motorway as

*A dual carriageway with at least two lanes in either direction where
interchanges are predominantly grade separated or where cross roads are on
average fewer than 1 cross road per 2km. The speed limit is at least 100km
although short sections may be less when navigating steep terrains.*


Ewen
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