I've been living here a while now and I can't seem to understand how the direction signs are so badly done in Australia cities. There are signs for some junctions but none for others. And they are usually at the junction, this isn't helpful when the road is several lanes wide and at the opposite side of the junction there is a road sign. But if there is a sign is it usually for the city centre which can be pretty far away in an Australian city and doesn't really help when you are trying to find other suburbs, that are not the city.
Don't get me wrong some things are done pretty well, such as street names everywhere and easy to see.