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1991 street index : user guide. PDF

40 Pages·1992·0.95 MB·English
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GEO i;i:ili\ni:ml;min;r 1 BIBLIOrHEQUE Canada : HowtoReachUs Pournousjoindre ToObtainMoreInformation Commentobtenird'autresrenseignements Inquiriesaboutproductsandservicesshouldbe Toutedemandederenseignementsausujetdes directedtooneofthefollowingStatistics produitsetservicesdoit§treadresseeaI'un CanadaReferenceCentres: desCentresdeconsultationdeStatistique Canadasuivants St.John's (709)772-4073 Halifax (902)426-5331 Montreal (514)283-5725 Ottawa (613)951-8116 Toronto (416)973-6586 Winnipeg (204)983-4020 R6gina (306)780-5405 Edmonton (403)495-3027 Calgary (403)292-6717 Vancouver (604)666-3691 Atoll-freenumberisprovidedinallprovinces Unnumerod'appelsansfraisestoffert,dans andterritories,foruserswhoresideoutsidethe touteslesprovincesetterritoires,aux localdialingareaofanyoftheRegional utilisateursquihabitentaI'exteneurdusecteur ReferenceCentres. d'appellocaldesCentresregionauxde consultation. NewfoundlandandLabrador/Terre-NeuveetLabrador 1-800-565-7192 NovaScotia,NewBrunswickandPrinceEdwardIsland/ 1-800-565-7192 Nouvelle-Ecosse,Nouveau-BrunswicketTle-du-Prince-Edouard Quebec/Quebec 1-800-361-2831 Ontario 1-800-263-1136 Manitoba 1-800-542-3404 Saskatchewan 1-800-667-7164 Alberta 1-800-282-3907 SouthernAlberta/SuddeI'Alberta 1-800-472-9708 BritishColumbia(SouthandCentral)/ 1-800-663-1551 Colombie-Britannique(sudetcentre) YukonandNorthernB.C.(areaservedbyNORTHWESTELInc.)/ Zenith/Zenith08913 YukonetnorddelaC.-B.(territoiredesserviparlaNORTHWESTELInc.) NorthwestTerritories(areaservedbyNORTHWESTELInc.)/ Callcollect/(403)-495-3028 TerritoiresduNord-Ouest(territoiredesservipar appelezafraisvires(403)495-3028 laNORTHWESTELInc.) TelecommunicationsDevicefortheHearingImpaired/ 1-800-363-7629 Appareildetelecommunicationspourmalentendants ^ 1991 STREETINDEX USERGUIDE GeographyDivision StatisticsCanada April1993 • . TABLEOFCONTENTS • Page INTRODUCTION Coverage Content ReferenceDate . Limitations .... DATAQUALITY 4 Lineage 4 PositionalAccuracy 5 AttributeAccuracy 5 LogicalConsistency 5 Completeness 5 TECHNICALSPECIFICATIONS 7 StreetName 7 StreetType 7 StreetDirection 7 AddressRange 7 AffiliatedCommunity 7 CensusSubdivisionName .. 7 4. GLOSSARYOFTERMS 10 5. ADDITIONALSERVICES 12 APPENDIX1. NamesandAbbreviationsofCensusSubdivisionsandCommunities 13 TABLES Table1. StreetIndexCoverage 3 Table2. IncompleteBlock-faceLinkages 6 Table3. StreetTypes 8 Table4. StreetDirection 8 Table5. CensusSubdivisionTypes 9 ARC/INFO*isaregisteredtrademarkofEnvironmentalSystemsResearchInstituteInc. 1. INTRODUCTION Thisuserguideprovidesinformationonthecoverage,contentanddataqualityofthe1991StreetIndex. Italsoincludesasectionontechnicalspecificationsandaglossaryofterms. TheStreetIndexlinksstreetsandaddressrangestoprovinces(PR),federalelectoraldistricts(FED),census divisions (CD), census subdivisions (CSD), census tracts/provincial census tracts (CT/PCT), and enumerationareas(EA). Threecomputerprintoutsareavailableasseparateprint-on-demandproducts, ePaRc/hCDp/oCrtSrDa;yinagndaCTdi/fPfCerTe.nt linkage. The streetsand address rangesare linked to: PR/FED/EA- Coverage StreetindexesareavailablewherethereisStreetNetworkFile(SNF)coverage,thatis,forlargeurban centrescontainingatleastonemunicipalitywithapopulationof50,000ormore. TheStreetIndexis availablefor25censusmetropolitanareas(CMA)and19censusagglomerations(CA). Insomecases,only portionsofCMAs/CAsarecoveredbySNF;thussomeurbancentresmaybeonlypartiallycoveredbythe StreetIndex(Table1). Content EachStreetIndexcontainsstreetattributesandlinkagestospecificstandardgeographicareas. Thestreet attributescomprisestreetname(includingstreettypeandstreetdirection),andoddandevenaddress ranges. Thestreetnamesarelistedinalphabeticalorder. ReferenceDate AllcensusdatareflectthecensusreferencedateofJune4,1991. ThereisalsoaGeographicReference Dateforthegeographicframeworkthatsupportsthecensus.Thisdateisearlierthanthecensusreference dateinordertogiveStatisticsCanadaenoughtimebeforeCensusDaytoprocessthenecessaryboundary tahnedinnafomremacthiaonngoens.anFyorcthhaeng1e99s1wCaesnsruesc,eitvheedGbeyogStraatpihstiiccsRCefaenraednacefDraotmeprisovJianncuiaalryor1,te1r9r9it1or,iparloavuitdheorditthiaets byMarch1.1991. Thestreetattributesandlinkagestothestandardgeographicareasareobtainedfromthreeseparate sources: theStreetNetworkFiles(SNF),theGeographicAttributeDataBase(GADB),andtheEADigital BoundaryFile. Eachsourcehasitsowninherentreferencedate,asfollows: - StreetNetworkFiles:varybetweenJune1986andDecember1991forthenetworkInformation, andbetweenJune1986andFebruary1991fortheaddressinformation. - GeographicAttributeDataBase: January1,1991forthegeographicattributesandlinkages. CorrectionsweresubsequentlymadetotheStreetIndexforEAlinkageerrorsfoundonGADBas ofNovember30,1992. - EADigitalBoundaryFile: January1,1991. TheEAsthatweresplitonCensusDaydueto dwellingincreasesareincludedintheboundaryfile. Limitations Incertaincases,addressrangesarenotprintedinthesequenceinwhichtheyarephysicallyfoundonthe agdrdoiutnidon.,TshoimseliamdidtarteisosnirsandgueestaortehaessciogdniendgtsotrFuEcDt,urEeAanadndfilCeTorcgoadneiszatthiaotnaorfetsheettSotrzeeertoN(e0t)wboerckauFisleest.heIinr respectiveblock-facerepresentativepointsfalloutsidethesegeographicareas. Despitethelinkagetothe 1991 Census,theStreetNetworkFileshavenotbeenupdated usingthe informationcollectedduringthe1991Censusfieldoperations. Consequently,usersshouldbeawarethat somestreetsandattributeshavenotbeenaddedtotheStreetNetworkFiles. • Table1 StreetIndexCoverage wThhioslllyistordepnaorttieasllywhciocvherCeMdAbsyatnhediCnAdesx.areAcbolvaenrkedinbdiycattheesStthraetetthIendeenxt,iraenCdMwAheotrheCrAthiescuorvbearnecdenbtyrethies StreetIndex. CMA/CAName Coveraae CMA/CAName Coveraae Belleville partial PrinceGeorge Brantford Quebec partial Calgary partial RedDeer Chicoutimi-Jonquiere partial Regina partial Edmonton partial Saint-Jerdme partial Fredericton partial SaintJohn partial Guelph Sarnia-Clearwater Halifax partial Saskatoon partial Hamilton SaultSte.Marie Kamloops partial Sherbrooke partial Kelowna St.Catharines-Niagara Kingston partial St.John's partial Kitchener Stratford Lethbridge Sudbury partial London ThunderBay partial Matsqui Toronto partial Moncton Trois-RMeres partial Montreal partial Vancouver NorthBay Victoria Oshawa Windsor partial Ottawa-Hull Winnipeg Peterborough partial Woodstock Note: Thefiveurbancentresdenotedinboldtextarecoveredbyprovincialcensustracts(PCT). The remainingcentresarecoveredbycensustracts(CT). . 2. DATAQUALITY • Thepurposeofadataqualityreportistoprovidedetailedinformationforuserstoevaluatethesuitability ofthedataorproductforaparticularuse. Fivefundamentalcomponentsofadataqualitystatementare: lineage,positionalaccuracy,attributeaccuracy,logicalconsistencyandcompleteness. SincethedatafortheStreetIndexwereextractedfromthreedistinctfiles,usersshouldconsultthedetailed dataqualitystatementsforeachofthefollowingsourcefiles: - StreetNetworkFile,UserGuide(AMFFormat). - 1991DigitalBoundaryFiles,UserGuide. - 1991GeographicAttributeDataBase,DataQualityStatement. Lineage Lineageincludesdescriptionsofthesourcematerialfromwhichthedatawerederivedandthemethods ofderivation,includingthedatesofthesourcematerialandalltransformationsinvolvedInproducingthe finaldigitalfilesormapproducts. SourceInformation TheStreetIndexwasderivedfromthefollowingsourcefiles: 1 TheStreetNetworkFiles(AMFFormat)providedthestreetnames(includingstreettypesanddirection), andoddandevenaddressrangeswithintheindividualCMAsandCAs. Thereferencedateforthe networkinformationvariesbetweenJune1986andDecember1991,andbetweenJune1986and February1991fortheaddressinformation. 2. The 1991 EA Digitial BoundaryFile provided the province, federal electoral district (FED) and enumerationarea(EA)linkstothestreetsandstreetattributes. Thegeographicreferencedateis January1,1991. TheEAsthatweresplitonCensusDayduetodwellingincreasesareincludedinthe boundaryfile. 3. The1991GeographicAttributeDataBaseprovidedthenames,codesandlinkagesforthegeographic areas. ThereferencedateisJanuary1,1991. MethodofDerivation VariousSAScomputerprograms(IBMmainframe-based)wereusedtoextract,compileandverifythe Information. ThefirstprogramusedtheStreetNetworkFilestoextractthestreetattributeinformationand theblock-facerepresentativepoints.AnARC/INFO®point-in-polygonalgorithmwasusedontheEADigital BoundaryFiletodeterminewhichSNFblock-facerepresentativepointsfellwithintheindividualEAs;this inturnprovidedtheprovince,FEDandEAlinkagestotheblock-facerepresentativepoints. TheextractedinformationfromtheSNFandEADigitalBoundaryFilewasthenmerged,whichresultedin thelinkageofprovince,FEDandEAcodestothestreetattributes. TheGeographicAttributeDataBasesuppliedtheothernecessarylinkagesandnames/codesforthe standardgeographicareas.PortionsoftheextractedinformationfromGADBwerecorrectedduetolinkage errorsfoundonthefinalGADBfile. AspecialStreetIndexprintprogramprovidedtheCT/PCT,CD/CSD andCMA/CAlinkagestothestreetattributes. AlthoughtheStreetIndexdoesnotcontainblock-facerepresentativepoints,usersshouldbeawareofhow thepointsaregeneratedsincetheywereusedtolinktheSNFstreetattributeswiththePROV/FED/EA codes. Block-facerepresentativepointsarecomputedwithinallStreetNetworkFilesalongaddressable streetsandaddressablesectionsofhighways. Therepresentativepointislocatedatthemid-pointofthe block-face, setbackaperpendiculardistanceof22metresfromthestreetcentreline. Duetothe computationmethod,block-facerepresentativepointsmaynotbeunique. Forexample,perpendicular block-facesofequallengthmaybeassignedrepresentativepointshavingthesamecoordinatevalues. PositionalAccuracy Positionalaccuracyisthedifferencebetweenthetrue"positionofafeatureintherealworldandthe 'estimated'positionstoredInthedigitalfileorotherproduct. AlthoughtheStreetIndexprintoutsdonotcontainanyx,ypositionaldata,usersshouldbeawarethatthere are130block-facerepresentativepoints-althoughhavingthecorrectCD/CSDcode-thatfalloutsidethe CD/CSDinwhichtheyshouldbelocated. Thisoccursbecauseofthe22metreruletolocatethepoints. AttributeAccuracy Attributeaccuracyreferstotheaccuracyofthenon-positionalinformationattachedtoeachfeature. TheStreetIndexreflectstheaccuracyoftheStreetNetworkFilesfromwhichstreetattributeswere extracted,andthe1991GeographicAttributeDataBasefromwhichthenamesandcodesofgeographic areaswereextracted. Forthe130block-facerepresentativepointsthatfalloutsidetheCD/CSDinwhichtheyshouldbelocated, theFED,EAandCTcodesaresettozero. Table2showsthenumberofincompleteblock-facelinkages fortheaffectedCMAsandCAs. LogicalConsistency Logicalconsistencydescribesthefidelityofrelationshipsencodedinthedatastructureofthedigitalspatial data(i.e.howwellelementsofthedatastructurefollowtherulesimposedonthem). ApostcensusverificationconfirmedthatthePROV/FED/EAlinkageswereconsistentwiththeextracted informationfromboththeGeographicAttributeDataBaseandthe1991EADigitalBoundaryFile. Completeness Completenessexpressesthedegreetowhichgeographicentities(features)arecapturedaccordingtothe datacapturespecifications.ItalsoIncludesinformationaboutselectioncriteria,definitionsusedandother relevantmappingrules. TheStreetIndexdoesnotprovideinformationforthosepartsofCMAsorCAsoutsideStreetNetworkFile coverage. TheStreetIndexescollectivelyprovidestreetattributesandlinkagestostandardgeographic areaswithinCMA/CAcoveragefor769,066block-facerecords. Usersshouldalsobeawarethatsomestreetnamesandaddressrangesareunidentifiedorunavailable. Inaddition,theStreetNetworkFileshavenotbeenupdatedusingtheinformationgatheredduringthe1991 Censusfieldoperations. Consequently,somestreetsandattributeshavenotbeenaddedtotheStreet NetworkFiles.

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