In this Part—

• “appropriate national authority” means—

  1. a

     the Secretary of State, as respects England; and

  2. b

     the National Assembly for Wales, as respects Wales;

• “intervention notice” means a notice under section 20;

• “intervention order” means an order under section 21;

• “local traffic authority” means a traffic authority other than the Secretary of StateF2, a strategic highways company or the National Assembly for Wales;

• “London authority” means Transport for London, a London borough Council or the Common Council of the City of London;

• “Mayor” means the Mayor of London;

• “road” means any length of highway or of any other road to which the public has access, and includes bridges over which a road passes;

• “road network”, in relation to F3a strategic highways company or a local traffic authority, means the network of roads for which F4the company or the authority is the traffic authority;

• “traffic” includes pedestrians;

• “traffic authority” has the same meaning as in the Road Traffic Regulation Act 1984 (c. 27);

• F5 “ network management authority ” has the meaning given in section 16(1);

• “network management duty” has the meaning given in section 16(3).