ASTM F1675-2009 Standard Practice for Life-Cycle Cost Analysis of Plastic Pipe Used for Culverts Storm Sewers and Other Buried Conduits《涵管 雨水管和其他埋设导管用塑料管的使用寿命成本分析标准实施规程》.pdf
《ASTM F1675-2009 Standard Practice for Life-Cycle Cost Analysis of Plastic Pipe Used for Culverts Storm Sewers and Other Buried Conduits《涵管 雨水管和其他埋设导管用塑料管的使用寿命成本分析标准实施规程》.pdf》由会员分享,可在线阅读,更多相关《ASTM F1675-2009 Standard Practice for Life-Cycle Cost Analysis of Plastic Pipe Used for Culverts Storm Sewers and Other Buried Conduits《涵管 雨水管和其他埋设导管用塑料管的使用寿命成本分析标准实施规程》.pdf(5页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: F 1675 09An American National StandardStandard Practice forLife-Cycle Cost Analysis of Plastic Pipe Used for Culverts,Storm Sewers, and Other Buried Conduits1This standard is issued under the fixed designation F 1675; the number immediately following the designation indicates the year o
2、foriginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This practice establishes a procedure for using life cycl
3、ecost (LCC) analysis techniques to evaluate alternative drainagesystem designs, using plastic pipe that satisfy the samefunctional requirements.1.2 The LCC technique measures the present value of allrelevant costs to install, operate, and maintain alternativedrainage systems such as engineering, con
4、struction, mainte-nance, rehabilitation, or replacement over a specified period oftime. The practice also accommodates any remaining residualor salvage value.1.3 The decision maker, using the results of the LCCanalysis, can then identify the alternative(s) with the lowestestimated total cost based o
5、n the present value of all costs.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitat
6、ions prior to use.2. Referenced Documents2.1 Other Standards:TM-5-802-1 Economic Studies for Military ConstructionDesign Applications (12/86)2Federal Office of Management and Budget Guidelines andDiscount Rates for Benefit-Cost Analysis of FederalPrograms and state documents for guidelines or requir
7、e-ments3ASTM Adjuncts:Discount Factor Tables43. Terminology3.1 Definitions:3.1.1 common costs, ncosts that are common to allalternatives in nature and amount, such as initial planning feesor future annual inspection costs.3.1.2 discount rate, nthe investors time value of money,expressed as a percent
8、, used to convert costs occurring atdifferent times, to equivalent costs at a common point in time.3.1.3 drainage project, na project having a definable,functional drainage requirement that can be satisfied by two ormore design or construction alternatives, or both.3.1.4 future costs, ncosts require
9、d to keep the systemoperating that are incurred after the project is placed in service,such as operation, maintenance, rehabilitation, or replacementcosts.3.1.5 inflation, nthe general trend or rising prices that,over time, result in the reduction of the purchasing power ofthe dollar from year to ye
10、ar.3.1.6 initial cost, nthe total of all costs; such as designcosts, material purchase costs, and construction/installationcosts, that are specific to each alternative and are incurred tobring each alternative to a point of functional readiness.3.1.7 maintenance cost, nthe annual or periodic costs,s
11、uch as inspection and cleaning to keep a drainage structurefunctioning for the project design life, but do not extend thematerial service life.3.1.8 material service life, nthe number of years ofservice a particular material, system, or structure will providebefore rehabilitation or replacement is n
12、ecessary.3.1.9 project design life, nthe planning horizon for theproject, expressed as the number of years of useful life requiredof the drainage structure.3.1.10 rehabilitation cost, nthe total of all costs incurredto extend the material service life of a specific alternative.3.1.11 replacement cos
13、t, nthe total of all costs incurred toreplace a material before the end of the project design life.3.1.12 terminal value, nthe remaining value of the drain-age structure in place at the end of the project design life.1This practice is under the jurisdiction of ASTM Committee F17 on PlasticPiping Sys
14、tems and is the direct responsibility of Subcommittee F17.62 on Sewer.Current edition approved Aug. 1, 2009. Published August 2009. Originallyapproved in 1996. Last previous edition approved in 2003 as F167503.2Available from Headquarters, Department of the Army, Washington, DC.3Available from Offic
15、e of Management and Budget, Washington, DC.4Available from ASTM International Headquarters. Order Adjunct No.ADJE091703.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States
16、.4. Summary of Practice4.1 This practice outlines a procedure for conducting anLCC analysis of two or more drainage pipe alternatives usingplastic pipe over a specified project design life. This practiceidentifies the project data and general assumptions needed forthe analysis and the method of comp
17、utation.5. Significance and Use5.1 LCC analysis is an economic method to evaluate alter-natives that are characterized by differing cash flows over thedesignated project design life. The method entails calculatingthe LCC of each alternative capable of satisfying the functionalrequirements of the pro
18、ject and comparing them to determinewhich have the lowest estimated LCC over the project designlife.5.2 The LCC method is particularly suitable for determiningwhether the higher initial cost of an alternative is economicallyjustified by reductions in future costs (for example, operatingmaintenance,
19、rehabilitation, or replacement) when compared toan alternative with lower initial costs but higher future costs. Ifa design alternative has both a lower initial cost and lowerfuture costs than other alternatives, an LCC analysis is notnecessary to show the former is the economically preferablechoice
20、.6. Procedure6.1 The procedure for performing an LCC analysis fordrainage pipe applications is as follows:6.1.1 Identify project objectives, alternatives, and con-straints (6.2).6.1.2 Establish basic assumptions (6.3).6.1.3 Compile data (6.4).6.1.4 Compute life cycle cost for each alternative (7.1).
21、6.1.5 Evaluate results (7.2).6.2 Project Objectives, Alternatives, and Constraints:6.2.1 Specify the design objective that is to be accom-plished, identify alternative systems or designs that accomplishthat objective, and identify any constraints that may limit theoptions to be considered.6.2.2 An e
22、xample is the design of a storm water drainagesystem for a residential development project. The system mustsatisfy mandated drainage system objectives, such as specifiedrainfall intensities and storm water runoff limits. Availablealternatives, such as different pipe materials and varyingconfiguratio
23、ns of catch basins, ponds, or underground deten-tion chambers may have different initial costs as well asexpected future costs. The system design may be constrainedby structural and hydraulic limits such as minimum andmaximum slopes and depth of burial, limits on surface flows onstreets, etc.6.3 Bas
24、ic Assumptions:6.3.1 Establish the uniform assumptions to be made in theLCC analysis of all alternatives. These assumptions include theselection of the discount rate, the treatment of inflation, generalinflation rate, the project design life, and the desired compre-hensiveness of the analysis.6.3.2
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