The Planning Balance Sheet 60 Years On: Evaluating Plans in the Digital Age
Michael Batty, Bartlett Professor of Planning, University College London
Nat Lichfield first proposed the Planning Balance Sheet in 1955 and it then came to be enshrined in strategic planning and community design from then on. Various elaborations such as the goals achievement matrix were proposed but the notion of balanced evaluation has remained central to urban planning ever since. In this lecture. I will review Nat’s contribution and tell you how we are taking his legacy forward in developing new online digital tools for evaluating a host of problems, building on the models that we first developed in the 1960s but in a context of better and different data and a changing conception of planning which is attempting to make our cities smart. I will illustrate how we can evaluate plans using Lichfield’s ideas ranging from the impacts of Crossrail 1 to HS2 and from pressures on the green belt for development to the development of new airports and the impact of rising sea levels in large metropolitan areas such as London.