Re: A number of sound decisions? IR35
In the case of HGV drivers there is a safety element too. The UK rules are that those drivers cannot be offered inducements which may encourage them to commit infractions such as speeding, so no bonuses for completing additional deliveries.
But drivers hired per run are effectively exempted from this, provided they do not breach the permissible number of driving hours.
This might, and I do stress that it is not 100% certain, account for why road deaths involving HGV's disproportionately involve drivers employed on a contract basis. In theory a tramping job should not be affected as there are not enough hours in the day to make a difference, and even trunking should be reasonably regular, but that is the way the numbers point.