Yes, by some quirk of fate I used to do navigation prompting for bus timed-course competitions; professional drivers on an unfamiliar route with a precise sched

Yes, by some quirk of fate I used to do navigation prompting for bus timed-course competitions; professional drivers on an unfamiliar route with a precise schedule to achieve. I'd shout-out current location, upcoming hazards and traffic controls, distance and time to next stop etc They'd be penalised ( say ) 2 points for each late arrival but 8 for early arrival, and the same for being seen to stop ahead of the specified location. I only did it for a couple of years but it was very interesting to watch the pros and made me appreciate the difficulties of maintaining schedules.