(1)For the purpose of preventing obstruction of the crossing and the approach roads, regulations may—
(a)prohibit vehicles from stopping or remaining at rest in prescribed parts of the crossing or of the approach roads except in prescribed circumstances; and
(b)make such provision as is mentioned in subsection (3) below with respect to vehicles which, either in contravention of the regulations or in such circumstances to which subsection (2) below applies as may be prescribed, are for the time being at rest in any prescribed part of the crossing or of the approach roads.
(2)The circumstances to which this subsection applies, in relation to any vehicle, are any circumstances in which—
(a)it is necessary for the vehicle to remain at rest by reason of breakdown; or
(b)no person is for the time being in charge of the vehicle or the person in charge of it is not present in or on the vehicle.
(3)The regulations may—
(a) require the person (if any) in charge of any vehicle which is at rest by reason of breakdown in any prescribed part of the crossing or of the approach roads to take prescribed steps for reporting that fact and the position and circumstances in which the vehicle is at rest;
(b)prohibit any person, other than a constable or traffic officer—
(i)from carrying out, or attempting to carry out, any repair, adjustment or refuelling of any such vehicle except with permission expressly given by a constable or traffic officer;
(ii)from moving, or attempting to move, any such vehicle from the position in which it is at rest;
(c)include provision for empowering a constable or traffic officer to remove any vehicle which is at rest in any prescribed part of the crossing or of the approach roads from its position to a place within the crossing or the approach roads where the regulations do not prohibit vehicles stopping or remaining at rest; and
(d)include provision, in the case of any vehicle which is so removed by a traffic officer or which at the request of the person in charge of it is repaired, adjusted or refuelled (instead of being removed) by a traffic officer, for requiring the prescribed person to pay to the crossing operator a charge of an amount determined in accordance with such scales and other provisions as may be prescribed.