29The toll period
(1)A toll order shall provide for tolls to be chargeable for a period (the “toll period”) specified in or determined in accordance with the order.
(2)The order may provide for the toll period to end—
(a)on a date, or at the end of a period, specified in the order, or
(b)on a date determined by reference to—
(i)the achievement of a specified financial objective, or
(ii)the passage of a specified number of vehicles,
or such other factors, or combinations of factors, as may be specified in the order, or
(c)on whichever is the earlier or later of dates specified in or determined in accordance with the order.
(3)Where an assignation has been granted under section 28(1), it is for the special road authority to decide any matter relevant to determining the date on which the toll period ends.