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本文介绍了英国运输部在公路建设和改造决策过程中使用的成本利益分析方法 COBA9。该方法把用路者在某公路使用寿命期间所获得的利益折成现值,和折成现值的该公路工程的历年成本之和相比较。用路者所得到利益主要表现为三种费用的节约:1.时间费用的节约;2.车辆营运成本的节约;3.事故费用的节约。文章简要介绍了上述各费用的计算方法。
This article describes the Cost Benefit Analysis Method COBA9 used by the UK Department of Transportation in decision-making on road construction and rehabilitation. The method compares the benefit gained by the occupier during the useful life of a road to the present value, against the sum of the cost of the road that has been converted to present value over the years. The benefits gained by road users are mainly represented by three types of cost savings: 1. Saving time and money; 2. Savings in vehicle operating costs; and 3. Savings in accident costs. The article briefly describes the calculation of the above costs.