Bletchleyite
Veteran Member
You can yield manage the trains to being full by simply slashing middle of the day fares to negligible levels.
Once you have the rolling stock for peak time services, running it up and down all day costs virtually nothing.
To a point. But why don't SE TOCs already do that? Because, simply, there are times of day when people don't want to travel even if it was free. Early Saturday afternoon and early Sunday morning are two examples - almost nobody is about even though Advances are dirt cheap at that time.