5.—(1) Each county council shall keep under review, in relation to that part of their area for which there is a district council, the following matters—
(a)the principal physical, economic, social and environmental characteristics of the authority;
(b)the size, composition and distribution of the population of the area;
(c)the communications, transport system and traffic of the area;
(d)any other considerations which may be expected to affect those matters.
(2) The persons prescribed for the purposes of section 14(5) are–
(a)any local planning authority any part of whose area lies within the area of the county council; and
(b)if the regional planning body within whose area the area of the county council lies requests a copy of the results of the review under section 14(3), that body.