Any power of the Minister under any of the foregoing provisions of this Part of this Act, other than sections 240 and 246 to acquire by agreement land required for a purpose mentioned in the provision in question is exercisable in respect of any land which, in the opinion of the Minister, may be required for that purpose, notwithstanding that the land is not immediately required for that purpose.
Subject to the following provisions of this section, where under any provision of this Act specified in column 1 of Schedule 17 to this Act a highway authority have power to acquire, or have acquired, land ("the initial stage area") for a purpose specified in column 2 of that Schedule, then any power of the authority under this Act to acquire land compulsorily for a purpose specified in column 3 is, in the case of other land adjacent to the initial stage area ("the subsequent stage area"), exercisable by them notwithstanding that the other land is not immediately required for the purpose specified in column 3.
A highway authority shall not acquire land compulsorily by virtue of subsection (2) above unless one or more of the following conditions are satisfied, namely—
A highway authority shall not by virtue of subsection (2) above acquire land compulsorily for any purpose where, apart from this section, they would not have power to acquire it compulsorily if it were required immediately for that purpose.