Not a dumb question Garry. Your father was service corps which was primarily transport.
In an Infantry Bn all the Sergeants in the Transport Platoon had to learn to ride a motorcycle as did those in Support Coy. The Transport Officer was resposible for the movement of a Bn Convoy. He detailed the movement and basically what was done we leapfrog each other at the sailient points.
I know that in our unit we had to take a motorcyle course and a traffic control course all administered by the RCASC.

As an aside the chap who fitted me with an artificial limb was an MC driver in the Black Watch he told me he felt pretty sheepish when he came home until he found out that the other nine amputees with him were from MC accidents.