For example, imagine a vehicle wants to merge into a lane of traffic. To do this, other vehicles would need to slow down, and in turn an inconvenience is created for them. Ford is proposing a system where the vehicles that need to slow down receive a payment for slowing down, while the vehicle that wants to do the slowing down, incurs a payment.
What is most interesting about this idea from Ford is how smart infrastructure could enable new forms of automated transactions with smart contracts and cryptocurrency.