This volume stems from the efforts of scholars who seek to understand the social dynamics of large technical systems. The purpose is to develop concepts and empirical knowledge concerning the dynamics of such systems, with particular emphasis on the processes ofcontrol and/or management in a variety of national settings, and to improve the basis of public policy so that future developments might be less distressing in consequence and more shaped to the desires of their host societies. One vehicle for this enterprise is a series of international conferences on the Evolution andDynamics ofLarge Technical Systems (LTSs). This series was instituted to encourage the coalescence of the multidisciplinary group of scholars who are actively engaging in the empirical study of these phenomena. Their disciplines span history, sociology, political science, and economics studies. They come Australia, France, the Netherlands, Norway, Sweden, the United Kingdom, the United States, and West Germany. And they possess strong backgrounds in the empirical study of specific technical areas and a taste for conceptual and theoretical integration.