s 2 Orders relating to tolls
(1) The Secretary of State may by order make provision as to the classes of vehicles using the specified roads in respect of which the tolls are to be levied, and as to the scales and other provisions in accordance with which they are to be levied. (2) Any such scales or other provisions may provide for tolls to be levied at different rates by reference to such circumstances or combination of circumstances (whether relating to classes of vehicles, seasons of the year, days of the week, times of day or otherwise) as the Secretary of State may consider appropriate. (3) Provision may be made by any such order for enabling persons to compound in advance for the payment of tolls, at such rates as may be specified in the order; and any such provision may include provision for the issue of season tickets or prepaid vouchers to persons so compounding. (4) An order under this section may provide that vehicles of any description specified in that behalf in the order (notwithstanding that they are vehicles of a class specified in the order in pursuance of subsection (1) of this section) shall be exempted from the payment of tolls.