Data Source: Roads and Maritime Service NSW LINK
The Roads and Maritime Service provides data on numbers of driver licences issued and sorts them by the postcode of the licensee. This makes it relatively easy to observe spatial patterns.
The interactive map above displays the proportion of all licences issued in a postcode a particular licence category represents.
For more details on what sort of vehicles the licence categories represent click here.
A couple of the more interesting patterns I noticed are below.
Sydney Area, Rider Licences as a proportion of licences issued
Rider licences (R) seem to me to be grouped together in 2 groups in the Sydney area. One being the inner suburbs, around the inner west and eastern suburbs, this might be explained by the shorter distances required for trips into the CBD. The second is the Northern Beaches area.
New South Wales, Heavy Combination Licences as a proportion of licences issued
Heavy combination licences (semi-trailers and the like) seem to represent a greater proportion of licences in a band running north south through the mid to far west rejoin of New South Wales.
Note, there is no data for postcodes: 2755, 2734, 2624, 2411, 2387,2379, 2356 and 2331.