Trunk Road T2 and Infrastructure Works for Developments at the Former South Apron

What's New

The Community Liaison Centre - Kai Tak has been reopened after enhancement works. Various AR, VR, and MR immersive games based on the T2 Project have been set up, offering a more engaging and interactive experience for visitors and allowing them to learn more about the T2 and the cutting-edge innovative technologies applied in this project. The opening hours are as follows:
Monday – Friday: 09:00 – 13:30 / 14:30 - 18:00
Saturday: 9:00 - 13:00
Sunday and Public Holidays: Closed
We welcome group visits. Please email [email protected] for arrangement.
To facilitate the construction works of Trunk Road T2, the Cha Kwo Ling Community Liaison Centre will be relocated with effect from 11 June 2025. Details refer to the notice.
On 11 September 2025, a government delegation from the Shenzhen Nanshan District visited the Kai Tak Community Liaison Centre of the Trunk Road T2 and Cha Kwo Ling Tunnel project. They conducted in-depth technical exchanges with CEDD and the T2 project team, focusing on innovative tunneling technologies. The project team provided a comprehensive briefing on project background, construction methodology, and the advantages of modular and mechanized tunneling. They also showcased digital innovations including the Centralized Management Platform, Smart Site Safety System, and two award-winning systems – the “3S Tunnel Defect Inspector” and the “Autonomous Air-Ground Cooperative Tunnel Inspector.” Model demonstrations on-site allowed delegates an intuitive grasp of these systems’ operational principles and practical benefits. The visitors showed keen interest and actively engaged in discussions. The exchange deepened mutual understanding of innovative tunneling solutions and laid a foundation for smart infrastructure collaboration between Guangdong and Hong Kong.
On 6 September 2025, members of The Institution of Engineering and Technology Hong Kong Younger Members Section (IET - YMS) visited the Trunk Road T2 and Cha Kwo Ling Tunnel project. The visit began at the Kai Tak Community Liaison Centre, where the project team presented the project overview, details of tunnel boring machine structure, internal structures, and new innovative technologies. After the briefing, the group toured the tunnel site guided by engineers, who explained construction procedures and specific challenges. The visit provided IET members with deeper insight into tunnel internal structures, segment assembly processes, and the benefits of modular and mechanized construction, as well as current tunnelling innovations.
On 20 August 2025, seniors from Yang Memorial Methodist Social Service revisited the Kai Tak Community Liaison Centre to attend the “T2 STEM Workshop.” The project team delivered an engaging and accessible introduction to the project background, the TBM’s operation, and the application of the “3S Tunnel Defect Inspector” for tunnel lining quality control. Participants experienced the “360° Tunnel Immersive Cave,” gaining a vivid sensation of real tunnel construction, and enthusiastically joined interactive activities. Team members thoughtfully took commemorative photos for the seniors and distributed keepsakes, creating a cheerful and welcoming atmosphere. The seniors’ proactive learning and curiosity were inspiring, and the workshop broadened their understanding of the T2 project.
Guided by the Development Bureau and the Department of Housing and Urban-Rural Development of Guangdong Province, and jointly organized by the Construction Industry Council and the Guangdong–Hong Kong–Macao Intelligent Construction Industry Alliance, the “Construction Robot Competition and Exhibition” was held from 31 July to 2 August 2025 at the Xiqu Centre, West Kowloon Cultural District. The exhibition showcased over twenty robotic devices tailored for different construction processes, including welding robots, robotic dogs, and drones, demonstrating how robotics can enhance on-site efficiency, strengthen safety, and improve productivity. Attracting more than 2,000 industry professionals, researchers, investors, and the public, the event featured lively exchanges highlighting strong growth potential in intelligent construction. The Trunk Road T2 and Cha Kwo Ling Tunnel project also participated, exhibiting the award-winning “3S Tunnel Defect Inspector,” which enables intelligent and digitalized structural tunnel inspections that significantly improve efficiency and accuracy. The exhibition offered the public an up-close view of the technology while promoting knowledge exchange among construction professionals from the Greater Bay Area and Hong Kong. Afterwards, the Development Bureau shared highlights in its blog, inviting CEDD representatives to introduce practical applications of robotics in the T2 project, especially the “Robotic Arm” and “3S Tunnel Defect Inspector,” which have delivered notable improvements in time savings, quality enhancement, and site safety.

DevB “My Blog”Content and Video Link: www.facebook.com/share/v/1G2bEkcZMm/?mibextid=wwXIfr
On 26 July 2025, students and faculty from Hong Kong College of Technology (HKCT) visited the T2 Kai Tak Community Liaison Centre. The project team presented the project background and its positive contributions to the community’s future. They also introduced the operations of the tunnel boring machine and the “3S Tunnel Defect Inspector.” Towards the end, engineers and surveyors shared up-to-date industry information, professional certifications, and career advancement pathways, inspiring students to realize their potential and plan early for their careers. Interactive experiences, including immersive experiences, engineering simulations, and tunnel internal structure games, were provided on-site to deepen students’ knowledge of tunnel engineering.
Civil Engineering and Development Department (CEDD) Summer Programme 2025 commenced with its first visit on 16 July 2025, to the Trunk Road T2 and Cha Kwo Ling Tunnel project. Multiple secondary schools actively participated. The project team introduced the project background and community contributions at the Kai Tak Community Liaison Centre, explaining the applications of the tunnel boring machines and innovative smart inspection systems. Students engaged in a range of interactive activities such as immersive technology, mixed reality, and augmented reality simulations to experience different tunnel construction phases. Engineers also shared entry requirements and career development pathways within the industry, encouraging students to plan early. The tour concluded with a visit to the commissioned pedestrian footbridge, highlighting the integration of tunnel engineering within the Kai Tak New Development Area planning and design. The event fostered students’ interest in civil engineering and inspired reflections on their future career directions.
On 9 July 2025, Primary 4 students and teachers from Fukien Secondary School Affiliated School visited the Kai Tak Community Liaison Centre to participate in the “Trunk Road T2 and Cha Kwo Ling Tunnel – STEM Workshop.” The project team provided an engaging introduction to the project background and long-term community benefits, coupled with clear explanations of the tunnel boring machine and innovative tunnel inspection system operations. The project team also shared insights into the academic qualifications, professional credentials, and career advancement paths for engineers, encouraging students to explore their potential and plan proactively. Through immersive, mixed reality (MR), and augmented reality (AR) interactive games, students experienced the design, assembly, and inspection processes, enhancing their understanding of innovative technologies. The event fully engaged the students and broadened their interest in tunnel engineering.
On 25 and 27 June 2025, SEED Foundation, a charity dedicated to future-proof our youths in the technology-driven economy, led students from Our Lady of the Rosary College, St. Teresa Secondary School, and Yan Chai Hospital Wong Wha San Secondary School to join the “T2 STEM Workshop” organized by the Trunk Road T2 and Cha Kwo Ling Tunnel project team. The event aimed to introduce the application of innovative technologies in major infrastructure projects and inspire students to pursue careers in innovation and engineering. The project team presented the background and social benefits, demonstrating tunnel boring machine operations and intelligent quality inspection system applications for tunnel structural safety. The project team shared their job roles, qualification requirements, and career prospects, assisting students with career planning. Interactive segments included virtual reality (VR), augmented reality (AR) games, and a 360° immersive tunnel experience, further enhancing students’ understanding of technology and engineering as a foundation for their future.
On 14 June 2025, the Hong Kong Life Planning Association led students from local aided and private secondary schools, the Hong Kong University of Science and Technology, City University of Hong Kong, Lingnan University, and Shenzhen Foreign Languages GBA Academy to participate in the “T2 STEM Workshop” at the Kai Tak Community Liaison Centre. The project team provided detailed explanations of the overall project planning, tunnel boring machine operation, and applications of the innovative tunnel quality inspection system. The project team shared insights into job responsibilities, required academic qualifications, professional credentials, and industry prospects, offering valuable career planning advice. Students actively engaged in hands-on activities including augmented reality (AR), virtual reality (VR), and engineering simulations, deepening their tunnel engineering knowledge and sparking their interest in innovative technologies.
On 30 May 2025, members of Legislative Council, Mr. Chan Siu-hung and Mr. Andrew Lam Siu-lo, visited the Kai Tak Community Liaison Centre and engaged with the Civil Engineering and Development Department’s project team for the Trunk Road T2 and Cha Kwo Ling Tunnel project. The team introduced the project background and innovative technologies including the 3S Tunnel Defect Inspector, the Autonomous Air-Ground Cooperative Tunnel Inspector, and the Multi-trade Integrated Mechanical, Electrical, and Plumbing (MiMEP) method. After the presentation, the members toured the centre’s facilities to deepen their understanding. They then visited the West Ventilation Building, where the project team explained the tunnel ventilation system and major mechanical and electrical equipment. The visit enhanced communication between the government and members of Legislative Council, improved project transparency, and provided valuable feedback.
“Autonomous Air-ground Cooperative Tunnel Inspector” Invented in Trunk Road T2 and Cha Kwo Ling Tunnel Project Claims Gold Award in 2025 Edison Awards
The "Autonomous Air-ground Cooperative Tunnel Inspector", co-developed by the Civil Engineering and Development Department, the Hyder-Meinhardt Joint Venture, and the Hong Kong Productivity Council has been awarded the Gold Award at the prestigious 2025 Edison Awards.

This invention integrates artificial intelligence image processing, multi-robot cooperation and LiDAR-based positioning technology to actualize automatic defect detection on tunnel internal structures without satellite positioning signal. The system has been successfully applied to the Trunk Road T2 and Cha Kwo Ling Tunnel project, replacing the traditional manual inspection at heights. It not only brings safer tunnel inspection, but the overall inspection costs and time is significantly reduced, thereby enhancing efficiency. Furthermore, the big data of tunnel structures collected propels digitalization transformation of tunnel asset management.
On 26 April 2025, the CEDD Volunteer Team held its inaugural volunteer event, accompanying children from the Hong Kong Chinese Church of Christ The Grace Neighbourhood Centre to participate in the “STEM Workshop” at the Kai Tak Community Liaison Centre. The project team delivered an engaging presentation covering the T2 project background, construction techniques, and innovative technologies. On-site engineers introduced their professional roles, inspiring the children’s interest in engineering. Volunteers and children explored interactive games such as the “360° Tunnel Immersive Experience,” “AR Tunnel Detection Challenge,” and “VR Tunnel Boring Machine Operation.” A quiz game capped the day’s events, creating lasting excitement as children eagerly shared their experiences. The workshop deepened participants’ understanding of the T2 project and innovative engineering technologies, arousing their interest in the field of engineering .
On 15 April 2025, seniors from Yang Memorial Methodist Social Service participated in the “T2 STEM Workshop” held at the Kai Tak Community Liaison Centre. The project team began with a concise introduction of the project background, followed by explanations of the tunnel boring machine’s operation and the innovative tunnel quality inspection system. The seniors listened attentively and asked questions, demonstrating strong enthusiasm for learning. During interactive game sessions, they actively engaged in experiences simulating TBM operation and tunnel inspection. Engineering staff took commemorative photos and presented small gifts. The participants showed proactive involvement and curiosity, making the workshop effective in enhancing their understanding of the T2 project.
On April 12, 2025, a group of students from St. Paul's Co-Educational College, Yuen Long Public Secondary School, Assembly of God Hebron Secondary School, Tang King Po School, and Stewards Pooi Kei College participated in the "Civil Engineer Course 303," organized by the Civil Engineering and Development Department. They visited the site office of the Trunk Road T2 and the Cha Kwo Ling Tunnel project.

During the visit, the project team provided an overview of the project background, explained the site organization, and showcased the application of advanced technology in T2. Following the introduction, resident engineers from the Consultants and the Contractor shared their experiences and career paths, aiming to inspire students interested in pursuing a career in civil engineering.

To further engage the students, we organized group activities where they discussed and tackled challenging engineering questions. This hands-on approach allowed them to learn through problem-solving. The students demonstrated a strong interest in the civil engineering industry by actively interacting with our engineers. We hope this course serves as valuable guidance for their future career planning.
Engineering students from the University of Hong Kong participated in a job shadowing program organized by the HKU Engineering Alumni Association (Student Affairs). On March 12, they visited the Trunk Road T2 and Cha Kwo Ling Tunnel project.

To help the students understand the industry's digitalization trends, the project team presented the Centralized Management Platform, which processes all documents and data. The team also highlighted the extensive use of the Internet of Things (IoT) for collecting live data on-site, enabling real-time monitoring. Next, the team explained the workings of tunnel boring machines and introduced the self-developed “3S Tunnel Defect Inspector,” designed for efficient tunnel inspections.

After the briefing, the students participated in a guided tour of the construction site led by our resident engineers. During the tour, the engineers described the functions and construction methods of various tunnel internal structures and answered students’ questions.

This visit provided a valuable experience for students preparing to enter the engineering profession, and we hope these future engineers will be well-equipped to meet various challenges.
On 12 March 2025, students from Po Kok Secondary School studying Physics participated in the “T2 STEM Workshop” at the T2 Kai Tak Community Liaison Centre. The project team introduced the background of the T2 project, followed by an overview of the working principles of tunnel boring machines and the innovative technologies utilized in the project.

At the end of the session, our resident engineer shared her experiences and explained the general duties of engineers, helping students gain a better understanding of the industry and consider pursuing a career in engineering.

After the presentation, students explored the centre and engaged in immersive games. These activities allowed them to learn about tunnel internal structures, experience piloting a tunnel boring machine, and use drones for tunnel inspections, among other tasks. We hope this visit will broaden their horizons and enhance their knowledge of engineering.
On 8 March 2025, the young members of Tung Wah Group of Hospitals Jockey Club Tai Kok Tsui Integrated Service Centre visited the T2 Kai Tak Community Liaison Centre. The project team began by giving a brief introduction to the project's background, construction methods, and the innovative technologies being used on-site. After the briefing, visitors were encouraged to explore the centre and enjoy interactive facilities such as the Tunnel Internal Structure Puzzle, the Interactive Wall showcasing many innovations of T2, Augmented Reality (AR) and Virtual Reality (VR) experience. These interactive games and displays not only added fun elements to the exhibition but also enabled both adults and children to gain a deeper understanding of engineering technology through interaction.
On 13 January 2025, the councillors of the Legislative Council A4 Alliance visited the Trunk Road T2 and Cha Kwo Ling Tunnel project. The project team introduced the project background and progress at the Kai Tak Community Liaison Centre. The councillors then explored the centre to gain a better understanding of the innovative technologies used in the T2 project. Afterward, the councillors proceeded to the western ventilation building of the tunnel for an on-site inspection. Our project team presented the design concept of the west ventilation building, then they visited the electrical and mechanical installations and discussed the operation of the tunnel ventilation system and related technologies. This visit strengthened communication and collaboration between the project team and the council, resulting in significant benefits for both parties.
About 100 students and teachers from Canossa Primary School participated in the "T2 STEM Workshop," which was held at the T2 Kai Tak Community Liaison Centre on 6 January 2025. The project team began with a brief overview of T2, including its background, construction methods, and the innovative technologies being used in the project. After the briefing, students freely explored the centre and engaged with interactive facilities, such as the immersive cave for tunnel touring, augmented reality (AR), mixed reality (MR) interactive games and other physical games and models. Through these interactive activities, the students deepened their understanding of the T2 project. We hope that the visit has enriched their engineering knowledge and provided valuable guidance for their future career planning.
On 3 January 2025, the District Council members of Kowloon City, including the members of the Traffic and Transport Committee, visited the Trunk Road T2 and Cha Kwo Ling Tunnel project. At the Kai Tak Community Liaison Centre, the T2 project team introduced the project, covering its background, progress, and the traffic arrangements for the entrances and exits, among other relevant information. The council members also explored the Community Liaison Centre to better understand the innovative technologies applied in the project. Afterward, they proceeded to the West Ventilation Building of T2 for an on-site inspection. The T2 project team introduced the electrical and mechanical (E&M) facilities and advanced technologies implemented within the building. Throughout the visit, there was a deep exchange of ideas. The T2 team not only responded to the inquiries but also gathered many valuable suggestions from the council members. This visit significantly enhanced the communication and collaboration between the project team and the community, bringing considerable benefits to both sides.
To celebrate 20th Anniversary of the Civil Engineering and Development Department, the Trunk Road T2 and Cha Kwo Ling Tunnel project participated in the “CEDD 20th Anniversary Roving Exhibition” held at Times Square from 17 to 22 December 2024. The Trunk Road T2 booth presented the interactive game "Tunnel Internal Structure Puzzle", demonstrating how the project applies innovative technology and modular construction methods to tunnel works. The project team was available on-site to provide project details and answer public enquiries. The exhibition received an enthusiastic response. It is hoped the event has enhanced public understanding on the T2 project and the relevant engineering knowledge.
On 15 December 2024, the Civil Engineering and Development Department (CEDD) held the CEDD Open Day at its headquarters to celebrate its 20th anniversary. Various offices set up multiple engaging booths for the public. The Trunk Road T2 and Cha Kwo Ling Tunnel project team, invited by the East Development Office, prepared an exhibition booth to share information about the T2 project and showcase a model of the tunnel boring machine. This provided visitors with a detailed introduction to the principles and technologies of tunnel boring.

Several interactive games were also featured at the event. The “Tunnel Internal Structure” puzzle game allowed participants to learn about the design of tunnel interior structures through a fun and engaging challenge. The "Tunnel Lining Assembly" naked-eye 3D interactive game offered an immersive experience where visitors could understand the assembly and turning mechanisms of tunnel lining, highlighting the innovative fusion of technology and engineering. Additionally, the augmented reality (AR) game "Tunnel Inspection Challenge" enabled participants to simulate the tunnel inspection process, gaining insight into the challenges of detecting tunnel defects.

Apart from showcasing engineering technologies, the event also prepared souvenirs for the public. We hoped to inspire the public, especially the younger generation, to dream of becoming engineers and contributing to Hong Kong's infrastructure. We offered instant photo services with a "Be an Engineer" theme, where the photos featured various engineering professions and adorable tunnel boring machine cartoon designs, which were especially loved by children. The entire CEDD Open Day not only deepened the public's understanding of civil engineering projects in Hong Kong but also strengthened the connection between the department and the community.
The District Council members of Kowloon City and the District Officer Ms. Alice Choi visited the Trunk Road T2 Kai Tak Community Liaison Centre and exchange ideas and thought with Mr. Michael Fong, the Director of Civil Engineering and Development Department on 11 December 2024. Project team introduced the role of Trunk Road T2 in the future development of Kai Tak Area, then the group explored the facilities at the Kai Tak Community Liaison Centre, such as Augmented Reality (AR) interactive games, Tunnel Internal Structure Puzzles and Interactive Wall Game as well as the Immersive Cave for tunnel touring. We collected valuable opinions from the members and they certain benefit the development T2 project.
About 50 students from various secondary schools participated in "Civil Engineer Course 202" at the community liaison centre of the Trunk Road T2 and Cha Kwo Ling Tunnel project on 7 December 2024, aiming to deepen their understanding of the civil engineering industry. This course is part of the "Youth Academy of Civil Engineering and Development – Civil Engineer" education program organized by the Civil Engineering and Development Department. Prior to this event, the students had completed the "Civil Engineer Course 101".

During the event, the engineering team provided detailed explanations of the project background, construction methods, and the application of innovative technologies. They also shared insights into the responsibilities of civil engineers, academic requirements, career development opportunities, and career pathways. Afterward, the students participated in interactive activities at the centre, including augmented reality (AR), mixed reality (MR), virtual reality (VR), and various physical games and models. These activities allowed them to simulate tunnel inspections, the assembly and operation of tunnel boring machines, and explore the internal structures of tunnels and the application of advanced technologies. Students showed their strong interest in the civil engineering industry by actively engaging with our engineers. We hope that the course will provide guidance for their career planning.
The MiMEP Symposium 2024 organized by Architectural Services Department and the Electrical and Mechanical Services Department was held on 29th December 2024 at the Hong Kong Science Park. The seminar attracted participation from both the public and private sector. Trunk Road T2 and Cha Kwo Ling Tunnel project showcased a 1:6 model of MiMEP module. The MiMEP modules of Trunk Road T2 includes pipes, cable tray and trunking etc. they were installed across the 3.4 km long twin tube tunnels, total 1740 pieces.

All MiMEP modules were assembled in our workshop off site then transported to tunnel service gallery for installation. With the application of MiMEP, we successfully shorten 90% onsite construction time and reduce site labour by over 60%, enhancing efficiency and promote safety.
The Development Bureau (DEVB) hosted the International Infrastructure and Projects Leaders Summit from 14 to 16 November 2024, bringing together more than 500 major infrastructure project leaders and experts in infrastructure from over 20 countries and economies around the globe, including senior government officials from Mainland and overseas countries, and representatives of renowned international organisations such as the World Economic Forum and International Institute for Management Development, to delve into the strategies and policies of infrastructure delivery plans, and addressed the challenges and opportunities in implementing mega infrastructure projects.

On the morning of 16 November 2024, Director of Civil Engineering and Development, Mr. Fong Hok Shing, together with Under Secretary for Development, Mr. Lam Chi Man, led a delegation of global infrastructure leaders and expert representatives to visit the Trunk Road T2 and Cha Kwo Ling Tunnel project. The Project Manager of the East Development Office of the Civil Engineering and Development Department, Mr. Leung Chung Lap, introduced the benefits and innovations of the T2 project, including mechanized construction techniques, smart tunnel inspection methods, digitalized project management, smart site safety systems, and green construction initiatives. These innovations aim to achieve the goals of enhancing speed, capacity, efficiency, quality, and site safety.

Subsequently, the project team guided the delegation to the subsea tunnel for the on-site inspection of mechanized construction. A live demonstration of the Autonomous Air-Ground Cooperative Tunnel Inspector showcased its real-time operation, leaving a profound impression on the attendees. During the visit, the delegation engaged in in-depth professional and technical exchanges with the project team, sharing experiences and expertise. The delegation highly praised the innovative engineering solutions and achievements implemented on the T2 project, and affirmed Hong Kong’s position as a global leader in world-class infrastructure development.

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Trunk Road T2 project team was invited by CEDD to participate in the "InnoCarnival 2024", which organized by the Innovation and Technology Commission at the Hong Kong Science Park from 26 October to 3 November 2024. The InnoCarnival 2024 is one of the 75th anniversary of the founding of the PRC signature events with the theme of “Let’s Sail with Innovation and Technology”.

During the 9-day carnival, the project team set up a booth to showcase information about the Trunk Road T2 and Cha Kwo Ling Tunnel project, sharing with the public how the T2 project applies innovative technology to achieve mechanized and modular tunnel construction. The booth also featured the latest interactive game, the "Tunnel Internal Structure Puzzle," which attracting many visitors to queue and experience it. Through this game, participants could take on the role of tunnel engineer, installing prefabricated tunnel segments for the T2 tunnel, while also gaining deeper insights into the details of the tunnel internal structures via interactive videos.
In November 2024, Legislative Council members, Kwun Tong and Sai Kung District Council members from the Democratic Alliance for the Betterment and Progress of Hong Kong (DAB) and the Hong Kong Federation of Trade Unions (HKFTU) visited the Trunk Road T2 and Cha Kwo Ling tunnel project. The group first gathered at the Kai Tak Community Liaison Centre, where the project team introduced the background of the T2 project, the construction methods of the tunnel, the current progress of the project, and future traffic improvement work in the Kwun Tong District. The members also explored the facilities at the Kai Tak Community Liaison Centre, such as Augmented Reality (AR) interactive games, Tunnel internal structure puzzles and Interactive Wall Game as well as the immersive cave for tunnel touring . Following the presentation, the members had a visit to the west ventilation building, and members shared some valuable opinions to the project team.
The 14th Community Liaison Group (CLG) Meeting (Cha Kwo Ling) was held on 31 October 2024.
On 30 September 2024, the Year 2 Students of Higher Diploma in Civil Engineering from Hong Kong Institute of Vocational Education (Tsing Yi Campus) visited the office of the Trunk Road T2 and Cha Kwo Ling Tunnel Project. The visit aimed to share the background of our project, application of innovative technologies and career information.

Resident Engineer introduced the 3S Tunnel Defect Inspector, which replaces manual method of tunnel lining inspection. This significantly enhances construction efficiency and accuracy of tunnel inspection. Besides, Our Resident Inspector of Works demonstrated how the Electronic Request for Inspection/Survey Check System (e-RISC) and Centralized Management Platform (CMP) contribute on project management by optimizing inspection processes and reducing reliance on paper documents. Students also visited the Multi-trade integrated Mechanical, Electrical and Plumbing (MiMEP) Exhibition Room to understand the complete construction process of tunnel utilities system, from factory fabrication to onsite assembly.

At the end of the visit, our Resident Inspector of Works shared valuable information about the career path, role, entry requirements, and career prospects of an engineering supervisor. We hope the visit has enriched their engineering knowledge and has given them better insights for planning their future careers.
The T2 Project team participated in the production of a 20th anniversary documentary by the Civil Engineering and Development Department (CEDD) and Radio Television Hong Kong (RTHK), which introduced the Trunk Road T2 and Cha Kwo Ling Tunnel Project in the 1st episode.

The program shared how the T2 project utilizes various innovative technologies and advanced construction techniques to enhance productivity. This includes the " Autonomous Air-ground Cooperative Tunnel Inspector" developed jointly by the CEDD, HMJV, and the Hong Kong Productivity Council to assist in inspecting the tunnel lining and thermal barrier, digitizing the inspection process to ensure the quality of tunnel construction.

Additionally, the program showcased the mechanization of the T2 project, such as using robotic arm for corbel construction. These technologies not only speed up the construction process but also effectively enhance construction safety, quality, and the environmental conditions at the construction site.

The program introduces the major projects developed by the Civil Engineering and Development Department over the past 20 years.

The content was broadcast from 14 September 2024 to 28 September 2024, and you can revisit it through the following links:
Episode 1: Mountain
Episode 2: Sea
Episode 3: Land
Civil Engineering and Development Department (CEDD) held a seminar of Artificial Intelligence and Drones at the Civil Engineering and Development Department Building on 10 September 2024. Speakers from the Hong Kong Productivity Council and Tsinghua University shared the applications of artificial intelligence and drones in the engineering industry and its future development, they also shared the "3S Tunnel Defect Inspector” and the "Autonomous Air-Ground Cooperative Tunnel Defector", which were successfully developed and adopted in the Trunk Road T2 and Cha Kwo Ling Tunnel project.
Construction Safety Week (CSW) 2024, co-organised by the Development Bureau (DEVB) and the Construction Industry Council (CIC), was held from 26 August to 30 August 2024 under the theme of "Safety for All, 4S Stands Tall". The Trunk Road T2 was honoured to receive a number of construction colleagues for a site visit on 28 August 2024. The Project Team introduced the project background, construction methods and various safety intelligent facilities applied in the Project. Afterwards, the visitors visited the construction site to learn about the multi-trade integrated mechanical, electrical and plumbing (MiMEP) method adopted by the project, where various electromechanical components are prefabricated into equipment modules in factories and then transported to the site for installation. For safety sake, the Project also utilizes the biometric identity authentication systems to ensure that all site machinery is operated by qualified personnel. Moreover, the Project Team demonstrated the operation of using a flipping table to turn over the prefabricated components of the service gallery, enhancing safety in transportation and installation of the components. Visitors were greatly impressed by T2 commitment in using smart site safety system to enhance site safety.
The Hong Kong Institution of Engineers (Geotechnical Division) participated in the Family Day organised by the Trunk Road T2 and Cha Kwo Ling Tunnel project on 24 August 2024. This event enabled the families of institution members to engage in the T2 STEM Workshop. Our project team introduced the project background, tunnel construction methods, operation principles of TBM and innovative technologies applied in the project. Furthermore, our resident engineers provided detailed information about the responsibilities of engineers to help children understand their family members' work. The members explored the interactive facilities at the Kai Tak Community Liaison Centre, such Mixed Reality (MR), Virtual Reality (VR), and Augmented Reality (AR) games, as well as an immersive cave for tunnel touring, allowing them to interactively learn about various aspects of the project.
The T2 Family Day was held on 21 August 2024 at the Kai Tak Community Liaison Centre of Trunk Road T2 and Cha Kwo Ling Tunnel, offering an opportunity for the family members of the consultant, Hyder-Meinhardt Joint Venture, and the Contractor, Bouygues Travaux Publics, to engage in the T2 STEM Workshop. Our project team introduced the project background, tunnel internal structures, and the use of Modular Integrated Construction (MiC) in our project. Our resident engineers provided insights into the roles and responsibilities of engineers, offering valuable information for children considering future careers and understanding their family members' work. The Community Centre featured multiple interactive facilities, such as Mixed Reality (MR), Virtual Reality (VR), and Augmented Reality (AR) games, as well as an immersive cave for tunnel touring, allowing families to interactively learn about various aspects of the project.
Civil Engineering and Development Department (CEDD) collaborated with Yan Chai Hospital and Lok Sin Tong Benevolent Society, Kowloon, to organise the "CEDD Summer Programme 2024", of which the closing ceremony was successfully held on 19 August 2024 at the Civil Engineering and Development Building. Trunk Road T2 project team was invited to hold an educational booth to introduce the project background, the construction method, tunnel internal structures, innovations and the principle of the TBM operation in this project to the students and teachers. Besides that, students may experience the virtual controlling of TBM through “Controlling Tunnel Boring Machine VR” to have a better understanding of the TBM operation which they found it novel and interesting. Moreover, the Trunk Road T2 educational booth has shown a tunnel internal structure model, which helps the students enhance the knowledge of the precast structure inside the tunnel.
The Civil Engineering and Development Department is holding an exhibition at the Civil Engineering and Development Building in Ho Man Tin from 2 August to 13 September 2024. The exhibition showcases the information related to the "3S Tunnel Defect Inspector” and the "Autonomous Air-Ground Cooperative Tunnel Defector", which were successfully developed and adopted in the Trunk Road T2 and Cha Kwo Ling Tunnel project. The exhibition also features display panels, interactive game and video to deepen visitors’ understanding of T2 project and the autonomous tunnel inspection.
About 120 teachers and students from Fukien Secondary School Affiliated School attended the T2 STEM Workshop on 10 July 2024 at the Kai Tak Community Liaison Centre of Trunk Road T2 and Cha Kwo Ling Tunnel. The Project Team introduced the project background, tunnel construction methods, operation principles of TBM and innovative technologies applied in the project. Furthermore, our resident engineers provided detailed information about the responsibilities of engineers to assist with the student career planning. After the presentation, the students engaged in discussions with our project team members, gaining deeper insights into the details of the project. The students explored the facilities at the Kai Tak Community Liaison Centre, such as Mixed Reality (MR), Virtual Reality (VR), and Augmented Reality (AR) interactive games, as well as the immersive cave for tunnel touring. These facilities allowed the students to interactively learn about various aspects of the project.. We hope the visit has helped the students gain engineering knowledge and provide guidance for their career planning.
Members of the Hong Kong Award for Young People (HKAYP) visited the Kai Tak Community Liaison Centre of the Trunk Road T2 and Cha Kwo Ling Tunnel on 6 July 2024. The Project Team introduced project background, construction methods, and innovative technologies applied in T2. As the attendees were young people from different age groups with many doubts about their future career paths, our senior site engineers and resident engineers detailed the daily responsibilities, career experiences, educational requirements, and industry prospects of engineers. After the sharing, the members deepened their understanding of the T2 project through various interactive facilities at the community liaison center, including Mixed Reality (MR), Virtual Reality (VR), and Augmented Reality (AR) interactive games. We hope the visit helps the members to gain engineering knowledge and develop a better idea when it comes to planning for their future careers.
Students from Oblate Primary School participated the T2 STEM Workshop on 3 July 2024 hosted by Trunk Road T2 and Cha Kwo Ling Tunnel Project. On the day of event, the student visited the Kai Tak Community Liaison Centre. Our Project Team introduced the project background, construction methods, and innovative technologies applied in the project. Subsequently, the resident site engineers shared insights into the daily duties of engineers, academic requirements and the career prospects of engineers to the students. Following the presentation, the students explored different facilities at the Kai Tak Community Liaison Centre, such as Mixed Reality (MR), Virtual Reality (VR), and Augmented Reality (AR) interactive games, as well as the immersive cave for tunnel touring to enhance their understanding of the actual construction site environment. We hope this event has enriched the students' engineering knowledge and provided guidance for their career planning.
Students from Leung Kui Kau Lutheran Primary School visited the Kai Tak Community Liaison Centre of Trunk Road T2 and Cha Kwo Ling Tunnel project to participate the T2 STEM Workshop on 2 July 2024. Our project team not only delivered a presentation on the project background, construction methods, and innovative technologies applied in the project, but also explained the roles and responsibilities of civil engineers, academic requirements, and career prospects to the students. Afterwards, the students explored the facilities at the Kai Tak Community Liaison Centre, such as Mixed Reality (MR), Virtual Reality (VR), and Augmented Reality (AR) interactive, as well as the immersive touring cave to enhance their understanding of our project.. We hope the visit has helped the students gain engineering knowledge and provide guidance for their career planning.
To celebrate its 20th anniversary, the CEDD had launched the CEDD’n I Week starting from 24 June 2024 to enhance its connection with the public.

On 26 June 2024, the Trunk Road T2 and Cha Kwo Ling Tunnel Project welcomed students from Yan Chai Hospital Law Chan Chor Si College to visit the Kai Tak Community Liaison Centre. The Project Team introduced the project background, tunnel construction methods, operation principles of TBM and innovative technologies applied in the project.

After the introduction, the students experienced different interactive facilities at the Kai Tak Community Liaison Centre, such as Mixed Reality (MR), Virtual Reality (VR), and Augmented Reality (AR) interactive games, as well as the immersive cave for tunnel touring, which deepened their understanding of the T2 project. We believed the visit could enrich students’ understanding on the engineering knowledge and innovative technologies.
To celebrate the 20th anniversary of the establishment of the CEDD, the East Development Office of the Department organised an activity and Trunk Road T2 and Cha Kwo Ling Tunnel Project was designated as a visiting project. On 22 June 2024, all participants and their families gathered at Kai Tak Community Liaison Centre. The project team first introduced the project background, tunnel construction methods, the tunnel internal structure, the operating principle of the tunnel boring machine and the 3S Tunnel Defect Inspector. To deepen their understanding of the project, participants actively participated in various interactive games, including “Tunnel Immersive Experience”, “AR Tunnel Inspection Challenge”, “Controlling Tunnel Boring Machine VR” and “Assembling Tunnel Boring Machine MR”, at the Centre. During the process, the children were particularly excited, filling the centre with laughter and energy.

Following that, the project team and the participants went to the nearby Public Works Central Laboratory of the Department to view the peanut-shaped launching shaft of TBMs from the rooftop and to see the tunnel alignment and the operation of the TBMs through the AR technology.

This event not only allowed colleagues to spend time with their families, but also gave their families an opportunity to understand their working environment and their workplace challenges.
Colleagues from the Civil Engineering and Development Department East Development Office visited Trunk Road T2 and Cha Kwo Ling Tunnel Project on 21 June 2024. On arrival at the Kai Tak Community Liaison Centre of the Project, located at Lam Chak Street in Kowloon Bay, the project team introduced the T2 project background, the tunnel construction methods, the engineering principles of tunnel boring machines (TBMs), the tunnel internal structure, the building information modelling (BIM) application and the 3S Tunnel Defect Inspector. The visitors then actively participated in various thematic games in the Centre to experience different stages of TBM tunnelling works with the aid of virtual reality (VR), augmented reality (AR) and mixed reality (MR) technologies. These games included the “Tunnel Immersive Experience ”, “Controlling Tunnel Boring Machine”, “Tunnel Inspection Challenge”, and “Assembling Tunnel Boring Machine”.

After that, the visitors were guided to the rooftop of the Public Works Central Laboratory Building to observe the overall site arrangement of the peanut-shaped TBM launching shaft and associated TBM supporting facilities . They also gain a better understanding about the subsea tunnel alignment and the operation of TBMs through AR technology.
The 13th Community Liaison Group (CLG) Meeting (Cha Kwo Ling) was held on 20 June 2024.
Students from Canossa Primary School attended the T2 STEM Workshop on 11 June 2024 at the Kai Tak Community Liaison Centre of Trunk Road T2 and Cha Kwo Ling Tunnel. The Project Team introduced the project background, construction methods, and innovative technologies applied in the project. Additionally, our resident engineers introduced the role of civil engineers, academic requirements, and the career prospects of engineers to the students. Following the presentation, the students explored the facilities at the Kai Tak Community Liaison Centre, such as Mixed Reality (MR), Virtual Reality (VR), and Augmented Reality (AR) interactive games, as well as the immersive cave for tunnel touring , which further deepened their understanding of our project. We hope the visit has helped the students gain engineering knowledge and provide guidance for their career planning.
Young engineers from Asia Infrastructure Solutions and students from the Faculty of Engineering of Hong Kong University visited Trunk Road T2 and Cha Kwo Ling Tunnel Project on 25 May 2024. The project team introduced the project background and the features of the Tunnel Boring Machine (TBM) used in the project. After that, the participants had a visit to the TBM which gave them a remarkable construction experience and enhanced their engineering knowledge.
Students from Kwun Tong Government Primary School (Sau Ming Road) attended the T2 STEM Workshop on 17 May 2024 at the Kai Tak Community Liaison Centre of Trunk Road T2 and Cha Kwo Ling Tunnel. The Project Team introduced the project background, construction methods, and innovative technologies applied in the project. Additionally, our resident engineers introduced the role of civil engineers, academic requirements, and the career prospects of engineers to the students. Following the presentation, the students explored the facilities at the Kai Tak Community Liaison Centre, such as Mixed Reality (MR), Virtual Reality (VR), and Augmented Reality (AR) interactive games, as well as the project model, tunnel boring machine (TBM) display model, and the immersive cave for tunnel touring. We hope the visit has helped the students gain engineering knowledge and develop a better idea for planning their future careers.
Students from Pooi To Middle School attended the T2 STEM Workshop at the Kai Tak Community Liaison Centre of Trunk Road T2 and Cha Kwo Ling Tunnel on 25 April 2024. The Project Team introduced the project background, construction methods, and the innovative technologies applied in this project. Additionally, our engineers explained the roles of civil engineers, academic requirements, and career prospects. Following the presentation, the students explored the project model and the tunnel boring machine (TBM) display model at the centre. Through participating in various interactive games with Mixed Reality (MR), Virtual Reality (VR), and Augmented Reality (AR) technologies, the students had a deeper understanding of the TBM assembly, tunnelling operation, as well as the innovative technologies applied during the construction stage of the Project. We hope the visit has helped the students gain engineering knowledge and develop a better idea for planning their future careers.
About 30 participants from various countries who joined the World Tunnel Congress 2024 visited the Trunk Road T2 and Cha Kwo Ling Tunnel Project on 25 April 2024.

The technical visit began with an introduction of the project background, the features of the tunnel boring machine and the application of innovative technologies in our project. Following the presentation, the participants had a visit to the sub-sea tunnel and gained insights into the internal structures of the tunnel, including the construction methods of the Service Gallery, Cross Passage, and Overhead Ventilation Duct slab. Additionally, the participants explored the control room of the tunnel boring machine and had a deeper understanding of the daily operation of tunnel excavation.

The 2024 World Tunnel Congress was co-organized by the International Tunnelling and Underground Space Association and the China Civil Engineering Society. With the theme "Tunnelling for a Better Life", it focused on the latest trends and sustainable development solutions in tunnel and underground construction engineering. Through the site visit, participants have shared and exchanged of international tunnel construction technologies and experiences.
Students from Munsang College attended the T2 STEM Workshop at the Kai Tak Community Liaison Centre of Trunk Road T2 and Cha Kwo Ling Tunnel on 18 April 2024. The Project Team introduced the project background, construction methods, and innovative technologies. Additionally, our engineer explained the roles of civil engineers, academic requirements, and career opportunities. The students explored the project model and the tunnel boring machine (TBM) display models. Through participating in various interactive games with Mixed Reality (MR), Virtual Reality (VR), and Augmented Reality (AR) technologies, the students had a deeper understanding of the TBM assembly, tunnelling operation, as well as the innovative technologies applied during the construction stage of the Project. We hope the visit has helped the students gain engineering knowledge and develop a better idea for planning their future careers.
The LiDAR-Based Fiducial Marker Positioning System was exhibited at InnoEX 2024
The 2nd InnoEX, co-organized by the Innovation, Technology and Industry Bureau of the HKSAR Government and the Hong Kong Trade Development Council (HKTDC), was held from 13 April to 16 April 2024, at the Hong Kong Convention and Exhibition Centre (HKCEC), under the theme “Innovation for a Smarter World.” InnoEX2024 not only showcased various innovative achievements but also brought together representatives from the governments of Hong Kong, Mainland China, and ASEAN, as well as experts from different technological fields, to discuss important issues related to technology and smart city development.

During InnoEX2024, the Office of the Government Chief Information Officer established the "Innovative Application with AI" Innovation Competition Awards zone, featuring a variety of innovative projects initiated by government departments. The Civil Engineering and Development Department exhibited the LiDAR-Based Fiducial Marker Positioning System, which received a merit award in the competition and is currently in use in the Trunk Road T2 and Cha Kwo Ling Tunnel projects. This exhibition not only allowed representatives from overseas and mainland technologies companies, government officials, school, and public to get a close look at this advanced positioning technology, but it also highlighted the significant contributions of the engineering sector in advancing Hong Kong's development as a smart city.
On 8 April 2024, the professors, lecturers, and students from Avans University of Applied Sciences in the Netherlands visited the Trunk Road T2 and Cha Kwo Ling Tunnel Project. The project team introduced the project background, features of the Tunnel Boring Machine, and the geotechnical innovations used in the project. The team also led the visitors to the TBM launching shaft. It is believed that all the students benefited greatly from this experience.
The 12th Community Liaison Group (CLG) Meeting (Cha Kwo Ling) was held on 4 March 2024.
About 60 students and teachers from the Kwun Tong Government Secondary School visited the Kai Tak Community Liaison Centre of Trunk Road T2 and Chan Kwo Ling Tunnel project on 4 March 2024. Our project team introduced the project background, tunnel construction methods, the working principle of tunnel boring machines and the innovative technologies applied to the project. Subsequently, our project team the nature of job and career prospects of engineers with the students. This allowed the students to gain a more comprehensive understanding of the engineering profession and assisted them in career planning. Following the introduction, students actively participated in various interactive activities, such as the “360 Tunnel Video Cave”, “AR Tunnel Inspection Challenge”, “Controlling Tunnel Boring Machine VR” and “Assembling Tunnel Boring Machine MR”, at the Community Liaison Centre to enhance their understanding of the project. Despite the visit being limited to an afternoon, we hope it provided meaningful insights to the students.
The Hong Kong Engineers Week Carnival, organized by the Hong Kong Institution of Engineers from 1 to 3 March 2024, showcased the daily professional work of engineers to the public. The booth of Civil Engineering and Development Department exhibited their fruitful achievements over the past 20 years. Also, T2 Project Team was also invited to introduce the 3S Tunnel Defect Inspector and its application in the T2 Project to booth visitors. Young visitors were able to gain an understanding of tunnel engineering and the importance of tunnel inspections through our Augmented Reality (AR) Tunnel Inspection Game.
Kowloon City District Officer, District Council members, Area Committee members and District Youth Community Building Committee members conducted a visit to the new footbridge at Kai Fuk Road constructed under Trunk Road T2 and Cha Kwo Ling Project in the afternoon of 1 March 2024. They were accompanied by Mr. Michael Leung, the Project Manager of East Development Office of CEDD, and the T2 Project Team. Members were briefed by the project team on the new footbridge about the connectivity between communities around Kowloon Bay and the Hong Kong Children’s Hospital provided by the new footbridge as well as the environmental and safety measures adopted during the footbridge construction. During the visit, members expressed keen interest in the public walkway network in Kai Tak South development area, the future New Acute Hospital and the areas in its vicinity.

After learning the function of the new footbridge, members walked along the new footbridge and the temporary covered walkway to the Hong Kong Children’s Hospital at Shing Cheong Road, enabling them to better understand the connectivity and accessibility of the future pedestrian network within the district.

The new footbridge was opened to public on 2 March 2024, making the commute between Kai Fuk Road and Shing Cheong Road much more convenient.
On 31 January 2024, around 20 junior secondary school students from MKMCF Ma Chan Duen Hey Memorial College visited our Kai Tak Community Liaison Centre. The Project Team introduced the project background, construction method and innovative technology applied in this project to the students. A briefing session was then conducted to familiarise the students with the duties as an engineer, the related academic requirements together with the career prospect in the construction industry.

The students were then given opportunities to visit the display models of the project and the tunnel boring machine (TBM). Through the Mixed Reality (MR), Virtual Reality (VR) and Augmented Reality (AR) interactive games in the centre, it enhanced their understanding of the TBM assembly process, TBM operation and innovative technologies adopted in the project. It is anticipated that students would find the visit fruitful and the information would certainly assist them in setting career plans in future.
Around 20 engineers from MTR Corporation Limited visited Trunk Road T2 and Cha Kwo Ling Tunnel Project on 27 January 2024. The visit began with an introduction of the project background, the application of geotechnical innovation and the features of the Tunnel Boring Machine (TBM) by our project team. Following that, engineers from the project consultant, Hyder-Meinhardt Joint Venture, along with the contractors from Bouygues Travaux Publics, led the MTR engineers to tour the tunnel construction site. The project team briefed them on the installation of the TBM, tunnelling traditions, as well as the challenges faced during the construction process. They had the opportunity to enter the TBM control room to explore the inner workings of this vital space, gaining a deeper understanding of its significance and the daily operations of the tunnel excavation works.