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This articleauthorDeng ShumingVisiting professor of Computer Science Department, Faculty of Engineering, Geography Department, Faculty of Social Sciences and School of Architecture, University of Hong Kong, and writes columns for Hong Kong Economic Journal“Kami Shingo”.
The opening ceremony of the Olympic Games in Paris, France, has filled the city with a warm sports atmosphere. Some events of the National Games next year will be held in the newly openedKai Tak Sports ParkThe Kai Tak Sports Park Stadium has a beautiful appearance and is full of modern style, which will definitely become a hot topic. The well-known local construction company Hip Hing, which is responsible for this project, actively adopts digital technology in construction, combining advanced Geographic Information System (GIS) and Building Information Modeling (BIM) software.
BIM is responsible for processing detailed data within the project, while GIS is used to store and manage information related to construction, integrating data from various sources and formats, including design files, licenses, inspections, and progress reports, so that project managers can monitor progress and identify risks in advance to reduce construction obstacles and control costs. At the same time, GIS’s macro analysis of the external environment, including daylight, wind direction and speed, noise, etc., has become a factor in the success or failure of a project.
To this day, some people in the construction industry and even the government still don’t understand why projects cannot just focus on the building itself as in the past, but also need to consider environmental factors? Take the Kai Tak Sports Park located on the Victoria Harbour as an example. Imagine that once heavy rain causes the water level to rise, this main stadium with a capacity of 50,000 seats will be at risk of flooding.
Hong Kong people are no strangers to the devastation caused by heavy rain and flooding. The older generation may remember the catastrophic landslide at Po Shan Road in Mid-Levels in 1972, which destroyed a large number of houses and claimed 67 lives.
Facing the threat of landslides and flooding, the authorities have introduced innovative technologies and sustainable design solutions many years ago, one of which is the Po Shan Drainage Tunnel. It includes two drainage tunnels and 172 drainage inclined pipes, equipped with automatic real-time groundwater monitoring sensors, connected to GIS to build a digital twin to monitor and control groundwater levels, thereby reducing the risk of large-scale landslides.
At the same time, it is more important to prevent problems before they happen. In the planning stage, three-dimensional (3D) models are used to predict changes. Real scenes come alive under 3D simulation. Through different flood scenarios and weather data, potential crises can be resolved in advance. Kai Tak Sports Park is the best example of the use of these innovative technologies.
In addition, when holding large-scale events, how to prevent the spread of the virus is also a challenge. Kai Tak Sports Park can introduce computational fluid dynamics (CFD) analysis used in the main stadium of the Tokyo Olympics. Using the Airflow Analyst with GIS software to replicate the buildings and landforms near the venue, and analyzing with weather and crowd flow data, it is possible to understand how much fresh air the venue can get, thereby assessing the risk of virus transmission.
In the face of threats from infectious diseases and extreme weather, when planning new development areas, especially in the low-lying northern metropolitan areas, the authorities must place environmental factors at the forefront of planning. At the same time, they must make good use of advanced technology to seek architectural solutions that can mitigate or even offset flood risks for the benefit of our future.
More articles by Deng Shuming:
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