2.—(1) In these Regulations—
“the Act” means the Roads (Scotland) Act 1984;
“hours of darkness” means the time between half-an-hour after sunset and half-an-hour before sunrise;
“traffic sign” has the same meaning as in section 64 of the Road Traffic Regulation Act 1984(1);
“the Traffic Signs Regulations” means the Traffic Signs Regulations and General Directions 1981(2).
(2) For the purposes of these Regulations road humps in a road shall be deemed to form part of a series where they are two or more in number and spaced so that not less than 20 metres nor more than 150 metres lies between one hump and the one next to it.
(3) For the purposes of these Regulations measurements to or from any point to or from a road hump shall be taken to or from that edge of the hump, as shown in the Schedule, which is nearest to the point and for the purposes of regulations 4 and 6 and of this paragraph—
(a)measurements to or from a horizontal bend shall be taken to or from that part of the bend which is nearest to the hump;
(b)measurements to or from a road junction shall be taken to or from the point nearest the hump on an imaginary line drawn across the mouth of the junction; and
(c)a horizontal bend begins where a vehicle would start the change of direction specified in regulation 4(2)(b)(i) and ends where a vehicle would finish that change of direction.
(4) A reference in these Regulations to a numbered regulation is a reference to the regulation bearing that number in these Regulations and a reference to the Schedule is a reference to the Schedule to these Regulations.