Rail is potentially a very efficient form of transport, but must be convenient, reliable and cost-effective to compete with road and air transport. Optimal control can be used to find energy-efficient driving strategies for trains. This book describes the train control problem and shows how a solution was found at the University of South Australia. This research was used to develop the Metromiser system, which provides energy-efficient driving advice on suburban trains. Since then, this work has been modified to find practical driving strategies for long-haul trains. The authors describe the history of the problem, reviewing the basic mathematical analysis and relevant techniques of constrained optimisation. They outline the modelling and solution of the problem and finally explain how the fuel consumption can be minimised for a journey, showing the effect of speed limits and track gradients on the optimal driving strategy.
Fully revised edition of Peter Dickinson's acclaimed study of one of the great British composers of the twentieth century. Sir Lennox Berkeley (1903-1989) was one of the leading British composers of the mid-twentieth century and his music has unique qualities which will ensure its survival far beyond transient fashions. Peter Dickinson knew Berkeley for more than thirty years and this much enlarged book places the composer in the context of his extended study with Nadia Boulanger, his friendship with Britten, and the achievement of an independent voice of remarkable distinction. The new book now benefits from interviews with Lady Berkeley, Michael Berkeley, Julian Bream, Colin Horsley, Sir John Manduell, Nicholas Maw, Malcolm Williamson and the late Basil Douglas, Desmond Shawe-Taylor and Norman del Mar. There are photographs, a full list of works, bibliographies and over a hundred musical examples. PETER DICKINSON is Head of Music at the Institute of United States Studies at the University of London and an Emeritus Professor of the Universities of Keele and London.
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