themselves", and that planning should exist "as the manifestation of communal collaboration". Through the Architectural Association School of Architecture, his ideas caught John Turner, who started working in Peru with Eduardo Neira. He would go on working in Lima from the mid-'50s to the mid-'60s. There he found that the barrios were not slums, but were rather highly organised and well-functioning. As a result, he came to the conclusion that:"When dwellers control the major decisions and are free to make their own contributions in the design, construction or management of their housing, both this process and the environment produced stimulate individual and social well-being. When people have no control over nor responsibility for key decisions in the housing process, on the other hand, dwelling environments may instead become a barrier to personal fulfillment and a burden on the economy."The role of the government was to provide a framework within which people would be able to work freely, for example by providing them the necessary resources, infrastructure and land. Self-build was later again taken up by Christopher Alexander, who led a project called People Rebuild Berkeley in 1972, with the aim to create "self-sustaining, self-governing" communities, though it ended up being closer to traditional planning. Synoptic planning After the "fall" of blueprint planning in the late 1950s and early 1960s, the synoptic model began to emerge as a dominant force in planning. Lane (2005) describes synoptic planning as having four central elements: "(1) an enhanced emphasis on the specification of goals and targets; (2) an emphasis on quantitative analysis and predication of the environment; (3) a concern to identify and evaluate alternative policy options; and (4) the evaluation of means against ends (page 289)." Public participation was first introduced into this model and it was generally integrated into the system process described above. However, the problem was that the idea of a single public interest still dominated attitudes, effectively devaluing the importance of participation because it suggests the idea that the public interest is relatively easy to find and only requires the most minimal form of participation. Transactive planning Transactive planning was a radical break from previous models. Instead of considering public participation as a method that would be used in addition to the normal training planning process, participation was a central goal. For the first time, the public was encouraged to take on an active role in the policy-setting process,