4.21.1 The principle of encouraging "green corridors" along the main approach roads has been applied in the past to improve the general amenity of towns and villages. This practice enhances the quality of the environment by creating and preserving open spaces and trees which help to form the character of communities. Any attempt to create continuous corridors of arbitrary width upon the main roads running into and out of settlements would be unrealistic. Therefore, it is not the Council's intention that an inflexible 'cordon sanitaire' should be created along the routes, nor that the Policy should apply to the activities of individual property owners within their own curtilages, for example, as permitted by the General Development Order. .

4.21.2 There are areas of land however, adjoining or close by the main highway routes, that are important in landscape terms and their loss to development would have a serious and detrimental effect upon the amenity of towns and villages. Not all areas of land falling within highway corridors are of equal importance or value in such locations. The Policy is intended to draw attention to the importance which the Council attaches to maintaining and enhancing the corridors by encouraging developers to include landscaping proposals for the frontages of development sites. The Council will be looking for the imaginative definition and treatment of the landscape zones, which should not be considered simply as a grass strip of uniform width. .