(1) In this section, "travelled portion", in relation to a concession highway, means the portion of the concession highway that is primarily intended for the linear movement of vehicles.
(2) The following portions of the concession highway constitute a highway for the purposes of the Assessment Act:
(a) the travelled portion of the concession highway;
(b) any land adjoining the travelled portion of the concession highway that is necessary for the safe and efficient use of that travelled portion;
(c) those portions of the concession highway that are used exclusively or almost exclusively for one or more of the following:
(i) the assessment of tolls;
(ii) the collection of tolls;
(iii) a prescribed purpose.