The solution would be for Transurban (or another party) needs to sell options to allow drivers to lock-in fares ahead of time, and if they decide not to use the

The solution would be for Transurban (or another party) needs to sell options to allow drivers to lock-in fares ahead of time, and if they decide not to use them, allow them to sell off the options to drivers on the spot the same-day. Of course managing this options market would be a headache.