Regulation 2

in passing from one part of any such premises to another or to other private premises in the immediate neighbourhood; or

in connection with road works or engineering operations while at or in the immediate neighbourhood of the site of such works or operations;“motor tractor” means a motor vehicle which is not constructed to carry any load other than —

water, fuel, accumulators and other equipment and materials used for the purpose of its propulsion; and

loose tools and loose equipment;“motor vehicle” means a mechanically propelled vehicle intended or adapted for use on roads or places where engineering operations or road or other works are being carried out;“passenger vehicle” means a motor vehicle constructed or adapted solely for the carriage of passengers and their personal effects;“pneumatic tyre” means a tyre which complies in all respects with the following requirements: (a)it is provided with, or together with the wheel upon which it is mounted shall form, a continuous closed chamber inflated to a pressure substantially exceeding atmospheric pressure when the tyre is in the condition in which it is normally used, but is not subjected to any load;

it is capable of being inflated and deflated without removal from the wheel or vehicle; and

it is such that, when it is deflated and is subjected to a normal load, the sides of the tyre collapse;“track laying vehicle” means a vehicle so designed and constructed that the weight thereof is transmitted to the road surface either by means of —

continuous tracks; or

a combination of wheels and continuous tracks in such circumstances that the weight transmitted to the road surface by the tracks is not less than half the weight of the vehicle.