Alberta's Traffic Safety Act
Standard speed limits
106 Subject to a speed limit that is prescribed under section 108 for a highway,
(a) 100 kilometres per hour is the maximum speed limit for a primary highway that is located outside an urban area;
(b) 80 kilometres per hour is the maximum speed limit for
(i) a highway that is subject to the direction, control and management of
(A) the council of a municipal district or Metis settlement, or
(B) the Minister responsible for the Special Areas Act, in the case of a special area;
(ii) a highway that is within a city where the title to the highway is vested in the Crown in right of Alberta pursuant to section 22 of the Public Highways Development Act;
(iii) a highway that
(A) is located on an Indian reserve where the title to the highway is vested in the Crown in right of Alberta, and
(B) is not the subject of an agreement entered into pursuant to section 13 of the Public Highways Development Act;
(iv) a forestry road;
(v) a licence of occupation road;
(vi) a highway located within an improvement district;
(vii) a highway that is subject to the direction, control and management of the Minister responsible for the Provincial Parks Act;
(c) subject to clause (b)(ii), 50 kilometres per hour is the maximum speed limit for a highway located within an urban area.