On quite a small trip, the unwary motorist may be subject to a hell of a lot of speed limits......look and learn;

25k - past schools, roadworks
40k - agreed speed for some residential streets
50k - recently applied speed limit for all streets not signed with any other limit
60k - most main roads
70k - some main roads
80k - dual carriageway equivalent roads/most country roads
90k - dual carriageway roads that are outside the main city area/some country roads
100k - expressway/ a few country roads
110k - a couple of roads

there are lots of speed cameras, ready to take your picture, (and your money!), so it pays to drive carefully!!