Section 8(3)(a) in The Motor Vehicles (Driving) Regulations, 2017
(a)a vehicle shall not make a `U' turn -(i)where such `U' turn is prohibited by a road sign or a traffic signal;(ii)on a busy road with continuous flow of traffic;(iii)on a major road, highway or expressway; and(iv)across a continuous single or a double solid line;