摘要: The manual describes a method for evaluation of pavement rehabilitation alternatives based on a present worth or present value economic model. Methods for selecting pavement rehabilitation, recycling and maintenance alternatives a... 展开 The manual describes a method for evaluation of pavement rehabilitation alternatives based on a present worth or present value economic model. Methods for selecting pavement rehabilitation, recycling and maintenance alternatives are presented together with a method for determining thickness requirements for overlay on airport pavement facilities. Guidelines are presented to allow the engineer to select an appropriate discount rate, analysis period and salvage values for use in the life cycle cost calculations. Prices and costs of pavement rehabilitation and recycling maintenance techniques are given and are suggested for use if costs of these operations are not available from historical records. Cost updating procedures are also defined. Two example problems are included in the manual to illustrate the techniques of present worth life cycle costing. (Author) 收起