Code : 2024050
Event Name : Development of Underground Utilities Information System (UUIS) in Hong Kong Special Administrative Region
CPD Code : Formal Events
Speaker : Sr F.M. CHU
Senior Survey Manager, Lands Department, Hong Kong Special Administrative Region (HKSAR), China
Event Date : 2024-06-20
Event Time : 7:00 pm - 8:30 pm
Registration Closing Date : 2024-06-17
CPD Hour(s) : 1.5
Divisional PQSL Hour(s) : 1.5
Venue : 1) Surveyors Learning Centre, Room 1207, 12/F, Wing On Centre, 111 Connaught Road Central, Sheung Wan, Hong Kong 2) By online media - ZOOM
Division : LSD
Organizer : Land Surveying Division
Fee : HK$150 for members; HK$180 for non-members
Priority : First-come-first-served
Language : Cantonese supplemented by English
Details :

Every year the vast majority of seemingly routine street excavations occurring around the territory are adversely impacted by the lack of usable information about buried utility infrastructure. A project can be delayed for days and weeks because extra time is needed to figure out where utilities are buried so the works can be planned and performed without undue risk. A large-scale construction project can be stalled for months, incurring delay claims and variation orders that significantly increase costs, because the locations of utility installations were not properly recorded or depicted and were later found obstructing planned foundation and construction works. What these kinds of risks and delay in works projects have in common is that they all can be prevented if accurate, comprehensive underground utility information (UUI) is available for rapid integration and analysis in the planning and design stage.


In 2021, Development Bureau (DEVB), Highways Department (HyD) and Lands Department (LandsD) of HKSAR Government discussed the development of the Digital UU Information System of the whole territory. LandsD later took up the task to establish a database of underground utilities with a mechanism for regular updating of the database.


Based on a prototype developed by Highways Department, LandsD liaised with Works Departments and major utility undertakings to develop a common data standard for UU Information, developed an initial set of Digital UU Information Database for the whole territory in GIS format. In the first stage, massive utility data for the whole territory was collected from UU stakeholders. UU data digitalisation, extraction of UU attributes and conversion of data forming a sharable database were carried out in forming an initial set of 3D Digital UU Information Database. The initial 3D Digital UU Information Database was established progressively in April 2023.


This talk presents the initial database completed in the project, including the preparation of the data specification, technical specifications, assumptions and rules, maintenance guidelines, determination of the project implementation approaches, data collection and the generation of the datasets. This paper also discusses design of the official platform to keep and disseminate data including the difficulties and challenges faced in the project.


The availability of digital UU data will facilitate the development of smart cities, realising the visions of the Smart City Blueprint for HKSAR and bringing benefits to society as a whole.


Topics to be covered in the Talk:

  1. Background and The UUIS Initiative
  2. Objectives
  3. Implementation Schedule
  4. The Initial Database and Prototype
  5. Engagement of Stakeholders and Dashboard
  6. Technical Specifications
  7. Data Specification
  8. Updating Mechanism
  9. Assumptions and Rules
  10. The Official Platform: 2D and 3D Views
  11. Functions and Analysis
  12. Security Issues
  13. Conclusions and Way Forward
Remarks :

*For Face-to-Face:

  • Prior online registration is required. Walk-in registration will not be entertained.
  • Eating and drinking is not allowed at the Surveyors Learning Centre.

*For ZOOM: The event will be conducted online via ZOOM. Upon successful registration, the ZOOM link for joining the CPD event will be available in the CPD/PQSL profile under the "Member Area" of the HKIS website.

On-line registration is not applicable for non-HKIS members. To register, please complete the CPD registration form and return with payment to the HKIS Secretariat.

Please install the Zoom Application in advance at

  • For Mobile phones, iPads & Android, install the ZOOM Cloud Meetings app from App Store or Play Store.
  • For PC and Mac, download and install the Zoom Client for Meetings.




This is an Official and Core activity related to Professional Practices under the CPD Scheme of the Property Management Services Authority. Holders of Property Management Practitioner Licence may receive a maximum of 1.5 CPD hours by participating in the activity.

Payment : HKD 150
Face-to-Face/Zoom :

HKIS members only