I had a wager last week with a cynic, a medical professional with an outdated view on life, that within 20 years Massey, or one of the Polytechnics, will offer a diploma course in stop-go sign holding.
As always, with such activities, the simpler the task, the grander the job description.
Thus the diploma will be in Applied Traffic Management or such-like, with theoretical and practical courses, stretched out over a year, followed by a graduation ceremony with a guest speaker notable to present the diploma to recipients, surrounded by proud family members.