9 Removal of stationary vehicles
The driver of a vehicle shall not allow it to stop or to remain at rest in any part of the crossing, other than in a designated parking area, or on the approach roads except–
(a) when directed to do so by a constable or traffic officer;
(b) to enable payment of a toll or charge;
(c) when prevented from proceeding by traffic or other obstruction of the highway;
(d) by reason of breakdown; or
(e) when he is incapacitated by reason of illness.