I entertain myself on long trips by timing how long things take and 15 minutes is sadly common I’ve seen it take take 25 minutes when the bathroom has a line. Gas stations are much faster day to day when you just want fuel and to hit the road, but after a few hours in the car someone needs to go to the bathroom etc and nobody is racing for the car.
I do know people who try and minimize such stops. They got an extra gas tank and use a piss bottle etc but businesses optimize for the general population not extreme outliers.
> I entertain myself on long trips by timing how long things take and 15 minutes is sadly common
Honestly, seems like you have a bias. If you're timing yourself you're biasing yourself to be faster. So incorporate higher variance into your model and assume you're on the lower end of at least that 1std deviation.
And again, I'm considering a long trip as multi-day 8hr+ driving. Your legs just don't last that long. First day is usually fine. Second if you're seasoned. Beyond that is where it gets real hard.
I do know people who try and minimize such stops. They got an extra gas tank and use a piss bottle etc but businesses optimize for the general population not extreme outliers.