In the future when autonomous vehicle dominate, road transport will need to be smarter.
Road trains, which may need to be very long compared to current trucks, will still have to use the winding country roads which are most common.
So imagine today’s invention – a series of carriages, linked by A-frame connectors. These will be pushed and pulled by autonomous tractors at either end (blue). These vehicles will be capable of steering this train of carriages both forwards and in reverse.
When another vehicle appears (human driven or autonomous) and wants to overtake (red oval), the tractors will signal the A-frames to stretch and/or contract, so as to create gaps and allow the overtaking to occur safely.
Imagine the complexity and precision of one train overtaking another.