(15)Speed control. - (a) Locomotive or train shall not be permitted to moves at a speed greater than seven kilometres per hour.(b)A train, locomotive, wagon or other rolling stock shall not be moved by a mechanical or electrical power unless it is proceeded at a distance of not less than 10 metres during the whole of its journey by a shunting jamadar. He shall be provided with signalling flags or lamp and whistle necessary for calling the attention of the driver.