For the purposes of Class D—

• “facilities for the collection of tolls” means such buildings, structures, or other facilities as are reasonably required for the purpose of or in connection with the collection of tolls in pursuance of a toll order;

• “ground level” means the level of the surface of the ground immediately adjacent to the building or group of buildings in question or, where the level of the surface of the ground on which it is situated or is to be situated is not uniform, the level of the highest part of the surface of the ground adjacent to it;

• “rooftop structure” means any apparatus or structure which is reasonably required to be located on and attached to the roof, being an apparatus or structure which is—

  1. a

     so located for the provision of heating, ventilation, air conditioning, water, gas or electricity;

  2. b

     lift machinery; or

  3. c

     reasonably required for safety purposes;

• “toll” means a toll which may be charged pursuant to a toll order;

• “toll collection area” means an area of land where tolls are collected in pursuance of a toll order, and includes any facilities for the collection of tolls;

• “toll collection booth” means any building or structure designed or adapted for the purpose of collecting tolls in pursuance of a toll order;

• “toll order” has the same meaning as in Part 1 of the New Roads and Street Works Act 1991 (new roads in England and Wales) M1; and

• “toll road” means a road which is the subject of a toll order.