That doesn’t include all operators of transportations. Planes, trains, ships, automobiles.
All spin off occupations that are from the driving as well, like security or oil field work.
It may not be an actual third of all occupations, though that was the figure I had read, it will be a much higher number in the end then just 3% of occupations.
We are still talking about a minimal 6 million jobs or more in the end.