[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-650035-105":59,"doc-detail-650035-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","utility-surveying-handout-summary","Utility Surveying - Handout - Summary","","Utility surveying addresses the safety and management needs created by the rapid growth of complex underground utility networks, including water supply, drainage, sewerage, power, gas, and telecommunications. It is shaped by standards and regulations and now extends beyond risk control to accurate 3D underground/subsurface mapping. The workflow integrates precise surveying technologies and GIS-based consolidation of information from different utility undertakers into unified databases, supported by systems such as EMPC and government policy goals for digital underground utilities.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/utility-surveying-handout-summary/650035/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/utility-surveying-handout-summary/650035.png","ImageObject",300,407,{"name":92,"@type":93},"miaandmiso","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-25","2026-10-24",true,{"@type":102,"interactionType":103,"userInteractionCount":14},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What problems does utility surveying target?","Question",{"text":112,"@type":113},"It focuses on managing safety risks and complex underground utility “spider networks” formed by water, drainage/sewerage, power, gas, and telecommunications infrastructure.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How does utility surveying go beyond safety today?",{"text":117,"@type":113},"It supports detailed 3D underground and subsurface mapping using precise land surveying technologies and GIS to unify data from different utility undertakers.",{"name":119,"@type":110,"acceptedAnswer":120},"What are the main types of utility surveying mentioned?",{"text":121,"@type":113},"The document lists condition surveys (man entry/CCTV/manhole), non-destructive methods like ground-penetration radar and pipe/cable locating, leak detection and flow monitoring, and as-built surveys.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},650035,1792962920,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":14,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145},7971478544854,"https://ap-avatar.wpscdn.com/davatar_994ba38a5ba835b3df7d355c54d3ed8d","Utility Surveying  \nCHAN Huen-ki Vicky  \n18 November 2023  \nWhat is Utility Surveying?  \nUtility Surveying  \nUtility surveying aims to deal with the rapid growth and increasingly complex underground utility’s spider networks that are constituted by water supply , drainage, sewerage, power, gas, telecommunication pipes and cables.  \nThe demand for surveys of underground utilities attracted wide attention, and standards and regulations have been enforced to define and regulate utility surveying practices.  \nAt present, utility surveying is not only about safety, but also extends to detail 3D underground/subsurface mapping with precise land surveying technologies, and customization of the information from different utility undertakers into unified database using GIS.  \n(Sourced from HKIS Website)  \nIdentification  \nDetection  \nVerification  \nLocation  \nUnderground  \nAbove ground  \nSafety  \nUnderground Utilities (UU) Underneath the Ground Surface  \nElectric  \nGas  \nDrainage & Sewer  \nMajor stakeholders include but not limited to:  \nPipeline  \nPipeline  \nPipelines  \nCable  \nCable  \n Utility Surveying  \nThe Electronic Mark Plant Circulation system (EMPC)  \n• A computer system which is being used among Utilities Undertakers since 2002 to circulate the mark plant information, in an electronic way, prior to the application of road excavation permit.  \n• 17 members  \n• EMPC can be considered as an electronic replacement to the conventional workflow in preparing letter correspondence, replies,  \ndrawings and their dispatch by surface mail but in a much faster way.  \n• EMPC itself will not store any data of other companies and it only works as an information exchange platform.  \n(Sourced from Towngas)  \nGovernment’s Vision  \n“Develop an accurate 3D digital  \nunderground utilities database  \nwith a view to facilitating the  \nconstruction industry to plan  \nand conduct the underground  \nworks efficiently and reducing  \nroad closure time resulting from  \nthe excavation works, thereby  \nbenefiting the community as a  \nwhole  \n”  \n.  \n(Policy Address 2021)  \n3D Digital Underground Utilities Database  Utility Surveying  \n(Underground Utilities Information System)  \nTypes of Utility Surveying  \nUtility Surveying  \nCondition Survey Man Entry/ CCTV/  \nManhole Survey  \nGround Penetration Radar (Non-destructive Method)  \nLeak Detection & Flow Monitoring  \nPipe Cable Locating (Non-destructive Method)  \nAs-built Survey  \nPositioning and mapping (where?)  Utility Surveying  \n(Sourced from LSGI, PolyU)  \nPipe Cable Locating  \nUtility Surveying  \n• Active/Passive mode  \n• Measure the depth of utilities up to 6m  \nBasic Principles of Pipe & Cable Locating  \n[https://www.youtube.com/watch?v=3Mccf5kttcE&ab_channel=PikewoodCreative](https://www.youtube.com/watch?v=3Mccf5kttcE&ab_channel=PikewoodCreative)","cbCaipYDCEulvVNs","https://ap.wps.com/l/cbCaipYDCEulvVNs","pdf",4540044,21,"English","# What is Utility Surveying?\n## Identification, Detection, Verification, and Location\n## EMPC (Electronic Mark Plant Circulation)\n## Government’s Vision and 3D Digital Underground Utilities Database\n## Types of Utility Surveying\n## Basic Principles of Pipe & Cable Locating","[{\"question\":\"What problems does utility surveying target?\",\"answer\":\"It focuses on managing safety risks and complex underground utility “spider networks” formed by water, drainage/sewerage, power, gas, and telecommunications infrastructure.\"},{\"question\":\"How does utility surveying go beyond safety today?\",\"answer\":\"It supports detailed 3D underground and subsurface mapping using precise land surveying technologies and GIS to unify data from different utility undertakers.\"},{\"question\":\"What are the main types of utility surveying mentioned?\",\"answer\":\"The document lists condition surveys (man entry/CCTV/manhole), non-destructive methods like ground-penetration radar and pipe/cable locating, leak detection and flow monitoring, and as-built surveys.\"}]","Utility Surveying - Handout - Summary | PDF",1792815393,53]