Adoption of Remote Sensing Technologies for Site Supervision in Construction Projects in Hong Kong Anthony C.T. So and Tony Y.K. Ho
Development Bureau, The Government of the Hong Kong Special Administrative Region, Hong Kong, China
Abstract
The Government of the Hong Kong Special Administrative Region (HKSARG) has been advocating for change in the construction industry by implementing ^Construction 2.0^ to enhance construction productivity, quality and safety through wider adoption of innovation and technology. The ^Construction 2.0^ initiative is steered by the Development Bureau of the HKSARG which has been promoting application of digitalisation and advanced technologies in public works contracts such as remote sensing, Internet of Things (IoT), Artificial Intelligence (AI), robotics, etc. No doubt, going digitalisation would be the trend in enhancing the efficiency, effectiveness and safety of operations in construction sites in Hong Kong and elsewhere.
Among various advanced technologies, remote sensing techniques, particularly Light Detection and Ranging (LiDAR) and photogrammetry are broadly applied in different construction projects, covering a wide range of applicability including progress monitoring, quality control of works, site measurements, tracking and structure monitoring. Interferometric Synthetic Aperture Radar (InSAR) which may be used to monitor ground displacements is also being studied to provide a tailor-made solution for the unique construction site conditions in Hong Kong. For contracts where the sites are scattered or located in remote areas, close site supervision could be challenging. The use of remote sensing techniques could significantly improve the quality and efficiency of site supervision work.
This paper presents the findings of a comprehensive review of different remote sensing techniques being applied in construction sites and evaluates the potential of wider adoption for site supervision.
Keywords: Photogrammetry, LiDAR, remote sensing, site supervision, technologies
