Apart from the very iniquitous way the act penalized a perfectly respectable and law abiding part of the motoring community, there have been many other unintended consequences of the act such as:-
Cul-de-sac byways; homes with no vehicular access; loss of amenity; loss of heritage & history; unsustainable routes being open to motorists without proportionate regulation; sustainable routes being closed to motorists; legitimate vehicular routes being shown with incorrect status on the definitive map and an increased work-load for highway authorities.