Jiang, L; Zhao, T; Feng, C and Zhang, W (2023) Improvement of random forest by multiple imputation applied to tower crane accident prediction with missing data. Engineering, Construction and Architectural Management, 30(3), pp. 1222-1242. ISSN 0969-9988
Abstract
Purpose: This research is aimed at predicting tower crane accident phases with incomplete data. Design/methodology/approach: The tower crane accidents are collected for prediction model training. Random forest (RF) is used to conduct prediction. When there are missing values in the new inputs, they should be filled in advance. Nevertheless, it is difficult to collect complete data on construction site. Thus, the authors use multiple imputation (MI) method to improve RF. Finally the prediction model is applied to a case study. Findings: The results show that multiple imputation RF (MIRF) can effectively predict tower crane accident when the data are incomplete. This research provides the importance rank of tower crane safety factors. The critical factors should be focused on site, because the missing data affect the prediction results seriously. Also the value of critical factors influences the safety of tower crane. Practical implication: This research promotes the application of machine learning methods for accident prediction in actual projects. According to the onsite data, the authors can predict the accident phase of tower crane. The results can be used for tower crane accident prevention. Originality/value: Previous studies have seldom predicted tower crane accidents, especially the phase of accident. This research uses tower crane data collected on site to predict the phase of the tower crane accident. The incomplete data collection is considered in this research according to the actual situation.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | accident prediction; missing data; multiple imputation; random forest; tower crane |
| Index terms: | onsite, case study, tower crane, critical factor, forest, accident prevention, construction site, prediction model, methodology, safety factor, machine learning |
| Subjects: | work location, artificial intelligence, environmental science, prediction and forecasting, data collection methods, risk assessment, building construction, environmental health, maintenance engineering, research methods, financial risk |
| Topics: | Research Practice, Business Strategy, Cost Management, Sustainability, Construction Technology, Risk Management, Digital Applications, Site Management |
| Descriptive scope: | 5 PCTEA |
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