I rather like this idea from China ... a superbus (more like a highway train if you ask me) that can carry up to 1400 passengers ata a time, and
allows cars to travel underneath it.
They have also invented a charging technique to keep it going called "relay charging".
The 'Straddling Bus' looks like a subway or light-rail train bestriding the road. It is 4-4.5 m high with two levels: passengers board on the
upper level while other vehicles lower than 2 m can go through underneath.
It's powered by electricity and solar energy and reaches 60 km/h carrying as many as 1400 passengers at a time without blocking other vehicles' way.
The cost to build a bus and a 40km track is only about 10% of building an equivalent subway. It is said that the bus can reduce traffic jams by as
much as 30%.
My only real issue is what happens when I need to take an off-ramp while underneath the thing ... oooops.