By Richard de de Neufville, Stefan Scholtes
Project groups can enhance effects via spotting that the longer term is necessarily doubtful and that through developing versatile designs they could adapt to situations. This strategy allows them to use new possibilities and steer clear of destructive losses. Designers of complicated, long-lasting projects--such as verbal exchange networks, strength vegetation, or hospitals--must discover ways to abandon fastened requirements and slim forecasts. they should keep away from the "flaw of averages," the conceptual pitfall that traps such a lot of designs in underperformance. Failure to permit for altering conditions dangers leaving major worth untapped. This e-book is a consultant for developing and enforcing value-enhancing flexibility in layout. it is going to be a vital source for all members within the improvement and operation of technological platforms: designers, managers, monetary analysts, traders, regulators, and lecturers. The ebook presents a high-level review of why flexibility in layout is required to carry considerably elevated worth. It describes intimately ways to establish, decide on, and enforce helpful flexibility. The ebook is exclusive in that it explicitly acknowledges that destiny results are doubtful. It hence provides forecasting, research, and evaluate instruments specifically fitted to this fact. Appendixes offer multiplied reasons of recommendations and analytic tools.
“Planning for large-scale infrastructure structures is an issue as huge because the platforms themselves. De Neufville and Scholtes current a robust and leading edge new mind set approximately this chronic problem. it's going to compel any engineer, planner, or coverage maker concerned with mega-projects to reconsider how we conceive destiny structures and the way we enhance ideas for his or her recognition. it's a major advance.”
—Gregory B. Baecher, Glenn L. Martin Institute Professor of Engineering, collage of Maryland
“De Neufville and Scholtes convincingly express us that bettering flexibility in engineering layout can assist us much to enhance our functionality. Anchored of their examine, the ebook is a simple learn simply because either authors also are very good pedagogues who take the reader step-by-step via a few tricky fabrics. This booklet is a true must-read for anyone interested by large-scale projects.”
—Arnoud De Meyer, President and Professor, Singapore administration college
“This e-book is a crucial reference for these fascinated about making plans infrastructure or development initiatives. It uniquely tackles the truth that uncertainty hangs over our making plans of infrastructure improvement. usually we don’t enjoy that development flexibility into destiny use may perhaps create the easiest worth. The authors compile the speculation with functional examples to create a ebook that allows you to support to reshape the considering at the back of our method of funding in our equipped environment.”
—Michael Haigh, coping with Director, Mott MacDonald heart East and South Asia
About the Author:
Richard de Neufville is Professor of Engineering structures and Civil and Environmental Engineering at MIT. He used to be Founding Chairman of the MIT expertise and coverage Program.
Stefan Scholtes is Dennis Gillings Professor of health and wellbeing administration and educational Director of the Centre for well-being management and firm on the pass judgement on enterprise college, college of Cambridge.
Note: nice caliber PDF; bookmarked, comprises TOC.
Read or Download Flexibility in Engineering Design (Engineering Systems) PDF
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Extra resources for Flexibility in Engineering Design (Engineering Systems)
48 Chapter 3 is that higher demands for parking spaces do not increase value sufﬁciently to compensate for the losses in revenues corresponding to equivalent lower demands. When the parking garage is full, it cannot accommodate more cars, and it cannot proﬁt from greater demand. This capacity limitation thus systematically affects the value of the project. Monte Carlo simulation helps us understand what is going on. The process generates the information needed to show us in detail what happens to the system.
This is the mechanism that leads to the ﬂaw of averages. Notice further that the design that maximizes value under realistic conditions is not the same as the one that appears best using a simple forecast. Indeed, the ENPV of the six-story garage, averaged over the 10,000-demand scenario, is negative. 3 million and outperforms the six-story design. The characteristics of the system that change the distribution of the uncertainties can also change the relative value of the design alternatives. 4 highlights, when we consider uncertainty, the ﬁve-level design now appears better—more proﬁtable—than the six-level design that appeared best when looking only at a single forecast!
This means that, starting from a current level L, the future level after T years is: Future level, LT = L (1 + r) T This pattern is exponential growth. Moore’s Law describing the doubling of computer capacity every 2 years is one example of this phenomenon. Exponential changes can sometimes last a long time; Moore’s description of change held for more than four decades from the 1960s. However, there are clearly limits to such patterns. In general, they last for a limited time. The sales of new products, for example, frequently grow exponentially during early stages and then slow down as markets become saturated.