Deputy Transport Commissioner of Vizianagaram district R. Ravindranath on Saturday asked all the vehicle drivers to understand the importance of all kinds of sign boards and follow them strictly to avoid road accidents.
He said that the three category of signs such as compulsory, cautionary and mandatory needed to be understood perfectly for safe driving on national highways and other roads.
Speaking to The Hindu, he said that refresher courses were being conducted for heavy vehicle drivers and auto drivers as part of the activities taken up under National Road Safety observed from January 15 to February 14.