CSA S250-2011 Mapping of underground utility infrastructure (First Edition).pdf

1、S250-11Mapping of underground utility infrastructureLegal Notice for StandardsCanadian Standards Association (CSA) standards are developed through a consensus standards development process approved by the Standards Council of Canada. This process brings together volunteers representing varied viewpo

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17、, and if you do make such copies, you are required to destroy them immediately. Use of this document constitutes your acceptance of the terms and conditions of this Legal Notice.CSA Standards Update ServiceS250-11September 2011Title: Mapping of underground utility infrastructurePagination: 71 pages

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20、ation5060 Spectrum Way, Suite 100, Mississauga, Ontario, Canada L4W 5N61-800-463-6727 416-747-4044Visit our Online Store at www.ShopCSA.caS250-11Mapping of underground utility infrastructureCSA Standard100%ISBN 978-1-55491-656-6 Canadian Standards Association 2011All rights reserved. No part of this

21、 publication may be reproduced in any form whatsoever without the prior permission of the publisher.To purchase CSA Standards and related publications, visit CSAs Online Store at www.ShopCSA.ca or call toll-free 1-800-463-6727 or 416-747-4044.The Canadian Standards Association (CSA) prints its publi

22、cations on Rolland Enviro100, which contains 100%recycled post-consumer fibre, is EcoLogo and Processed Chlorine Free certified, and was manufactured using biogas energy.September 2011 iiiContents Canadian Standards Association Mapping of underground utility infrastructureTechnical Committee on Mapp

23、ing of Underground Utility Infrastructure viPreface ix0Introduction 11Scope 21.1 General 21.2 Application 21.3 Terminology 22 Reference publications 23 Definitions 34 Mapping records 54.1 General 54.2 Mapping records management 64.2.1 General 64.2.2 Accuracy 64.2.3 Content 64.2.4 Record systems 64.2

24、.5 Source records 64.2.6 Retention 64.2.7 Monitoring and auditing 64.2.8 Continuous improvement 64.2.9 Disaster recovery 64.2.10 Training 64.3 Accountabilities and responsibilities 74.3.1 Owner 74.3.2 Locator 74.3.3 Excavator 74.4 Mapping record characteristics 74.4.1 General 74.4.2 Validity 74.4.3

25、Map data interoperability 74.5 Records lifecycle 74.5.1 General 74.5.2 Planning and design 84.5.3 Construction 84.5.4 Operation and maintenance 84.6 Types of mapping records 94.6.1 General 94.6.2 Field records 94.6.3 As-built drawing 94.6.4 Base mapping 94.6.5 Photographs 104.6.6 Red-line drawings a

26、nd records 104.6.7 Sketches 104.7 Map data sharing 104.7.1 General 10S250-11 Canadian Standards Associationiv September 20114.7.2 Owner responsibilities 104.7.3 Sign-off/transmittal (process of sharing the data) 104.7.4 Data sharing 104.7.5 Mapping data compatibility 105 Reliability and accuracy of

27、mapping records 115.1 General 115.2 Measuring and recording the location of underground utility infrastructures 115.2.1 Owners responsibility 115.2.2 Competency 115.2.3 Open trench and daylighting 115.2.4 Trenchless technology 115.2.5 Intervals for measurements 125.3 Absolute spatial positioning 125

28、.3.1 Horizontal and vertical datum 125.3.2 Projection or coordinate system 125.4 Relative spatial positioning 125.4.1 Use of permanent structures 125.4.2 Absolute positioning of relative locations 125.5 Accuracy of as-built records 135.6 Application of spatial accuracy 135.6.1 Extent of spatial accu

29、racy 135.6.2 Measurements of spatial accuracy 135.7 Accuracy of supplementary utility records 135.8 Quality levels for underground utility infrastructure mapping 145.9 Measurements 145.9.1 General 145.9.2 Recording measurements 145.9.3 Project control points 145.9.4 Precision 145.9.5 Angles, distanc

30、es, and vectors 155.9.6 Non-conforming information 155.9.7 Kinematic GNSS/GPS coordinates 156 Feature description 156.1 General 156.2 Data structure 156.3 Symbols 156.4 Clarity of information 166.5 Line style 166.5.1 General 166.5.2 Line style attributes 166.5.3 Line style appearance 166.5.4 Colour

31、166.5.5 Line weight 166.5.6 Layers or levels 166.5.7 Dimensions 166.5.8 Text 167 Utility infrastructure specific requirements for mapping records 187.1 General 187.1.1 Material abbreviations 187.2 Water systems 187.2.1 Inclusions 18 Canadian Standards Association Mapping of underground utility infra

32、structureSeptember 2011 v7.2.2 Exclusions 197.2.3 Graphical representation 197.3 Wastewater systems 197.3.1 General 197.3.2 Inclusions 197.3.3 Exclusions 197.3.4 Graphical representation 197.4 Electrical systems 207.4.1 Inclusions 207.4.2 Exclusions 207.4.3 Graphical representation 207.5 Liquid petr

33、oleum and gas systems 207.5.1 Inclusions 207.5.2 Exclusions 217.5.3 Graphical representation 217.6 Telecom systems 217.6.1 Inclusions 217.6.2 Exclusions 217.6.3 Graphical representation 21AnnexesA (informative) Commentary 35B (informative) Distinction between records and as-built drawings 46C (infor

34、mative) Utility infrastructure corridors 47D (informative) Sample layout drawings/GIS output plots 51E (informative) Sample mapping change request form and process 54F (informative) As-built drawing checklist 58Tables1 Positional accuracy of as-built records 222 Positional accuracy of supplementary

35、utility infrastructure records 223 Colour codes on composite utility maps 23Figures1 Text and dimension orientation 242 Water systems 253 Wastewater systems 274 Electrical systems 295 Liquid petroleum and gas systems 316 Telecom systems 33S250-11 Canadian Standards Associationvi September 2011Techni

36、cal Committee on Mapping of Underground Utility InfrastructureB. Gaspirc City of Toronto,Toronto, OntarioChairL. Hanley Union Gas Limited,Chatham, OntarioVice-Chair L. Arcand TSH/TBE Subsurface Utility Engineers,Whitby, OntarioJ. Arnott Enbridge Gas Distribution,Toronto, OntarioAssociateJ. Atherton

37、UMA Engineering Ltd.,Mississauga, OntarioF. Briceno Aecon Utilities,Toronto, OntarioAssociateJ. Cook Terra Discovery Ltd.,Terra Cotta, OntarioAssociateG. Dsilets Public Works Government Services Canada,Ottawa, OntarioA. Geden Aecon Group Inc.,Toronto, OntarioJ. Hale Department of National Defence,Ot

38、tawa, OntarioS. Henley Henley Consulting Inc.,Qualicum Beach, British ColumbiaT. Jenkins Regional Municipality of Peel,Brampton, OntarioAssociateG. Jones SaskEnergy,Regina, SaskatchewanT. Kee Alberta Agriculture and Food,Edmonton, AlbertaP. Lamb Ontario Ministry of Transportation,St. Catharines, Ont

39、arioB. Lawrence ENMAX Power Corp.,Calgary, AlbertaJ. Marshall Hydro One Networks,Barrie, OntarioAssociate Canadian Standards Association Mapping of underground utility infrastructureSeptember 2011 viiR. McNabney Toronto Hydro Electric Systems Ltd.,Toronto, OntarioM. Morin ATCO Electric,Edmonton, Alb

40、ertaF. Nagy Dufferin Construction Company,Oakville, OntarioAssociateH. Peters ComPeters Inc.,Kitchener, OntarioR. Phillips ATCO Pipelines,Edmonton, AlbertaAssociateK. Philpott Crann (b) provide an explanation of circumstances surrounding the actual field condition; and(c) where possible, phrase the

41、request in such a way that a specific “yes” or “no” answer will address the issue.Committee interpretations are processed in accordance with the CSA Directives and guidelines governing standardization and are published in CSAs periodical Info Update, which is available on the CSA website at http:/st

42、andardsactivities.csa.ca.(5) CSA Standards are subject to periodic review, and suggestions for their improvement will be referred to the appropriate committee. To submit a proposal for change to CSA Standards, please send the following information to inquiriescsa.ca and include “Proposal for change”

43、 in the subject line:(a) Standard designation (number);(b) relevant clause, table, and/or figure number;(c) wording of the proposed change; and(d) rationale for the change. Canadian Standards Association Mapping of underground utility infrastructureSeptember 2011 1S250-11Mapping of underground utili

44、ty infrastructure0IntroductionThe purpose of this Standard is to specify the mapping records requirements used to identify and locate underground utility infrastructure. This Standard is intended to promote the use and drive the advancement of mapping records during the planning, design, constructio

45、n, and operation of underground utility infrastructure.Underlying the development of this Standard is the two-fold recognition that it is a privilege, not a right, to bury anything underground in the public right of way and that it is in consideration or exchange for that privilege, that the owner i

46、s obliged to provide an accurate and retrievable as-built location of that utility infrastructure.The underground is a maze of pipes and cables. Currently, thousands of kilometres of underground pipes and cables have never been accurately mapped or recorded. Infrastructure in Canadas older cities wa

47、s installed more than 100 years ago when as-built drawings, if any existed, referred to surface features that have long since disappeared. Up until recently, recording the presence and location of such utilities was not formally required or was not carried out in an accurate or methodical way. Today

48、, many of the records that do exist are in formats that are incompatible between utilities, making it difficult to position one companys pipes relative to anothers cables.With so many communications lines, fibre-optic cables, and petroleum, natural gas, electricity, water and sewer lines, public saf

49、ety issues arise as to how quickly utility infrastructure can be located and accurately identified in order to avoid an excavation mishap that could result in significant damage, an interruption of service, possible serious injury to workers or the public, or negative impact to the environment.Municipal authorities and the construction industry are now making a concerted effort to prevent accidental damage to underground utility infrastructure. For example, the Common Ground Alliance (CGA) has launched a “Call Before You Dig” program des