1、Designation:A93009(Reapproved 2014)Standard Practice forLife-Cycle Cost Analysis of Corrugated Metal Pipe Used forCulverts,Storm Sewers,and Other Buried Conduits1This standard is issued under the fixed designation A930;the number immediately following the designation indicates the year oforiginal ad
2、option 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 covers a procedure for using life-cycle cost(LCC)analysis tech
3、niques to evaluate alternative drainagesystem designs using corrugated metal pipe that satisfies thesame functional requirements.1.2 The LCC technique measures the present value of allrelevant costs of installing,operating,and maintaining alterna-tive drainage systems,such as engineering,constructio
4、n,maintenance,rehabilitation,or replacement,over a specifiedperiod of time.The practice also accommodates any remainingresidual or salvage value.1.3 Using the results of the LCC analysis,the decisionmaker can then identify the alternative(s)with the lowestestimated total cost based on the present va
5、lue 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 limitations prior to use.2
6、.Referenced Documents2.1 ASTM Standards:2E917 Practice for Measuring Life-Cycle Costs of Buildingsand Building Systems2.2 Other Documents:TM-5-802-1 Economic Studies for Military ConstructionDesignApplications(12/86)Federal Office of Management and Budget Guidelines andDiscount Rates for Benefit-Cos
7、t Analysis of FederalPrograms and State Documents for Guidelines or Require-ments3.Terminology3.1 Definitions:3.1.1 common costs,ncosts common to all alternatives innature and amounts such as initial planning fees or futureannual inspection costs.3.1.2 discount rate,nthe investors time value of mone
8、y,expressed as a percent,used to convert the 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.3.1.4future costs,
9、ncosts required 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 thatresult in reduction of the purchasing power of the dollar fromyear to year ove
10、r time.3.1.6 initial cost,nthe total of all costs,such as designcosts,material purchase costs,and construction and 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
11、,such as inspection and cleaning,to keep a drainage structurefunctioning for the project design life but that do not extend thematerial service life.3.1.8 material service life,n the number of years ofservice that a particular material,system,or structure willprovide before rehabilitation or replace
12、ment is necessary.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 replaceme
13、nt cost,nthe total of all costs incurred toreplace a material before the end of the project design life.3.1.12terminal value,nthe remaining value of thedrainage structure in place at the end of the project design life.1This practice is under the jurisdiction of ASTM Committee A05 on Metallic-Coated
14、Iron and Steel Products and is the direct responsibility of SubcommitteeA05.17 on Corrugated Steel Pipe Specifications.This practice was prepared incooperation with Subcommittee B07.08.Current edition approved Nov.1,2014.Published November 2014.Originallyapproved in 1994.Last previous edition approv
15、ed in 2009 as A930-09.DOI:10.1520/A0930-09R14.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.*A Summary of Change
16、s section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.Summary of Practice4.1 This practice outlines a procedure for conducting anLCC analysis of two or more drainage pipe alternatives usingcorrugated metal pipe over a specified project design life.Itidentifies the project data and general assumptions necessaryfor the analysis and the method of computation.5.Significance and Use5.1 LCC analysis
