Never mind Chinese superbuses, today’s invention is a way to make more effective use of the rail networks.
A double-width train (black outline) could be built to run astride two adjacent railtracks (most tracks are laid in pairs; an up line and a down line). This would necessitate that all oncoming traffic be halted for a while of course but would allow very heavy loads to be transported (and with the extra width, potentially also at higher speeds).
Intermediate sized trains (blue) straddling three rails might also be used, as well as a small central design (red) which could be passed over by a black design running on the two outermost rails only.
