I’ve worked out how to scale up our expectations of the sat nav. What I mean is, if Google Maps says a journey will take 4 hours, we know what we have to add on to that to calculate when we’ll actually arrive.
By the way, I suppose Google only calculates the time based on the traffic conditions right now. So if there’s a red blockage currently 2 hours in, I assume it factors that into its prediction, even though in 2 hours’ time, that blockage will either be gone, or perhaps extensive. There’s no way Google can know, right?
Anyway, we think we need one minute of stoppage for every six minutes driven. In other words, if we drive for one hour, we should expect a 10 minute break. Or in other words, a 4 hour journey will actually take 4 hours and 40 minutes.
Add in a traffic factor of 1 minute for every 8 travel minutes and you’ve got your equation, complete with margin.
J = T+(T/6)+(T/8) = T+(14T/48)
where T = travel time suggested by Google and J = actual expected journey time.
So, when we go to Yorkshire next (3h5m) we should allocate a journey time of…
J = 185 + 14x185/48 = 239m = 3h59m
What do you reckon? Will it work? Is it nonsense? Will the good lady agree to such logical reasoning and margin time? Will she roll her eyes? Will we pack late, drive slowly, stop more often, take 5 hours?
Exciting isn’t it?
Well I guess that’s one word for it.
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