Driving Orientation

Here is an interesting map showing which countries drive on the left and which on the right side of the road. This comes from a Strange Maps website which also explains the history of the preferences, and which countries switched from one side to the other. Apparently 66% of the people live in countries that drive on the right side of the road.


Dark red: drives on right.
Light red: used to drive on left, now on right.
Purple: used to have mixed system, now drives on right.
Light blue: used to drive on right, now on left (Namibia).
Dark blue: drives on left (mainly British ex-colonies).

You know, the purple countries are what worried me. A mixed system? How did that work? I assume not very well!