Paragraph 20 Design of roads

No [stage of the] authorised development consisting of the construction or alteration of a street which is a trunk road or including any traffic management and control measures shall commence until written details of the design of the street shall, after consultation with the Highways Agency, be submitted to and approved by the Commission.

The [authorised development] construction or alteration of the street or the taking of traffic management and control measures shall be carried out in accordance with the approved design.