AMERICANNATIONALSTANDARDGraphicSymbolsforRailroadMapsandProfilesANSIY32.7-1972(REVISIONOFANSIY32.7-1957)-REAFFIRMED1994FORCURRENTCOMMllTEEPERSONNELPLEASESEEASMEMANUALAS-11FORCURRENTCOMMllTEEPERSONNELPLEASESEEASMEMANUAL4-11SECRETARlAT.THEAMERICANSOCIETYOFMECHANICALENGINEERSTHEINSTITUTEOFELECTRICALANDELECTRONICSENGINEERSPUBLISHEDBYTHEAMERICANSOCIETYOFMECHANICALENGINEERSUnitedEngineeringCenter345East47thStreetNewYork,N.Y.10017CopyrightedmateriallicensedtoStanfordUniversitybyThomsonScientific(www.techstreet.com),downloadedonOct-05-2010byStanfordUniversityUser.Nofurtherreproductionordistributionispermitted.UncontrolledwREAFFIRMED2004FORCURRENTCOMMITTEEPERSONNELPLEASEE-MAILCS@asme.orgNopartofthisdocumentmaybereproducedinanyform,inanelectronicretrievalsystemorotherwise,withoutthepriorwrittenpermissionofthepublisher.THEAMERICANSOCIETYOFMECHANICALENGINEERSCopyright01972ByPrintedinU.S.A.CopyrightedmateriallicensedtoStanfordUniversitybyThomsonScientific(www.techstreet.com),downloadedonOct-05-2010byStanfordUniversityUser.Nofurtherreproductionordistributionispermitted.UncontrolledwFOREWORD(ThisforewordisnotapartofAmericanNationalStandardGraphicSymbolsforRailroadMapsandProfilesY32.7-1972)ThisstandardsupersedesAmericanNationalStandardGraphicalSymbolsforUseonRailroadMapsandProfiles,Y32.7-1957.ItrepresentsacompilationandcorrelationofgraphicsymbolsusedbytheEngineer-ingDivisionandtheCommunicationsandSignalSectionofAssociationofAmericanRailroads.FollowingapprovalbySubcommittee7andStandardsCommitteeY32,itwasgrantedapprovalbytheAmericanNationalStandardsInstituteonAugust8,1972.iiiCopyrightedmateriallicensedtoStanfordUniversitybyThomsonScientific(www.techstreet.com),downloadedonOct-05-2010byStanfordUniversityUser.Nofurtherreproductionordistributionispermitted.UncontrolledwAMERICANNATIONALSTANDARDSCOMMITTEEY32GraphicSymbolsandDesignationsOFFICERSC.A.Fricke,ChairmanJ.L.Fisher,Jr.,ViceChairman-MechanicalC.R.Muller,Vice-Chairman-ElectricalL.A.Meadows,Vice-Chairman-Govr.LiaisonW.L.Hewetson,V...
