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Enhancing BIM security in emergency construction projects using lightweight blockchain-as-a-service.

Xingyu Tao1, Moumita Das1, Chengliang Zheng1,2

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Summary

This study introduces a lightweight blockchain-as-a-service (LBaaS) prototype to secure data exchange in emergency construction projects (ECPs). The LBaaS prototype enhances design efficiency and collaboration by addressing security vulnerabilities in mobile cabin hospital construction.

Keywords:
Blockchain-as-a-service (BaaS)Building information modeling (BIM)COVID-19Emergency projectsMobile cabin hospitalSmart contract

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Area of Science:

  • Construction Management
  • Information Technology
  • Cybersecurity

Background:

  • Emergency construction projects (ECPs), such as mobile cabin hospitals (MCHs), face data security vulnerabilities due to unique design processes, leading to inefficiencies.
  • Existing blockchain solutions are often impractical for ECPs due to complex deployment and limited Building Information Modeling (BIM) integration.

Purpose of the Study:

  • To develop and validate a lightweight blockchain-as-a-service (LBaaS) prototype to enhance data security and collaboration in ECPs.
  • To address the specific security flaws identified in the design process of MCHs.

Main Methods:

  • Identification of security vulnerabilities in ECP design, using a Hong Kong MCH as a case study.
  • Development of key technologies for LBaaS, including a Multi-to-One mapping (MtOM) kit, an integrated workflow, and smart contracts.
  • Validation and evaluation of the LBaaS prototype using actual MCH project data.

Main Results:

  • The LBaaS prototype effectively enhances the security and traceability of information exchange in ECPs.
  • The developed technical elements facilitate easier deployment and usage of blockchain in construction projects.
  • The prototype demonstrated feasibility and security for ECP collaboration.

Conclusions:

  • The proposed LBaaS offers a practical and secure solution for improving design collaboration and efficiency in ECPs.
  • This research provides valuable insights into data security challenges in ECPs and guidance for implementing blockchain solutions.
  • The LBaaS approach can mitigate rework and project delays by ensuring data integrity and transparency.