When the motor way was being built.
The council was offered two entrances or exits one where the present one is and the other would have been in the road on the moor. Foolishly  they selected 1 putting all the joining and leaving traffic moving through Cleveland. Then when the work had started they said "No we've changed our minds" Only to be told you made your choice and that is what you are getting. It's too late to alter it all now the plans have gone through.