The median bus journeys is probably about 20 minutes long since intercity journeys are probably dwarfed in number by city busses, so I'm not sure per journey is

The median bus journeys is probably about 20 minutes long since intercity journeys are probably dwarfed in number by city busses, so I'm not sure per journey is the best metric here. Per hour or per KM seems better, or possible take a weighted average of all three.