Author(s)

Wim Timmermans

Abstract

Within the context of the Fourth Environmental Planning Bill, several hundred thousand new houses have been built in the Netherlands in the last ten years. New estates, which often consist of thousands of homes, have been built around existing towns and cities. Now, the political agenda is demanding that more attention be paid to sustainable urban development. A sizeable learning process has thus been put in motion in order to shed more light on such development. 1 Introduction Five structural plans have been analysed for sustainability. LJburg in Amsterdam, Ypenburg in the Hague, Westerpark in Breda, the Waalsprong in Nijmegen and Getsewoud in Harlemmermeer. All the plans are ambitious with regard to their sustainability. Therefore, use is made of the Two Networks Strategy, a guide model adopted from the ECOPOLICY strategy and developed by Tjallingii (1996). Using this strategy, we are able to ascert

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