## 4 Results Analysis
### BIM Integration with Simulation  
The interviewer asked, \"Construction workers are working in heights in high-rise building projects, how with the help of BIM can make the impact of accidents minimal 'fall from roofs/floor (working at height or open edges without using fall-protection systems)?\" The interviewees elaborated on the information with the ability of their working experiences and knowledge. Most of the interviewees believed that BIM incorporated with various types of simulation techniques could help to overcome falls from roofs/floors. For instance, Bluetooth low-energy (BLE) devices can reduce the impact of accidents in high-rise buildings. BLE is a low-power wireless communication technology that allows construction  
\begin{table}
\begin{tabular}{c c c} \hline \hline
**Codes** & **Categories** & **Core Categories** \\ \hline Safety supervision & Augmented reality (AR) & Virtual environment \\ Increase productivity & Virtual reality (VR) & Virtual environment \\ Safety management tool & & \\ Safety inspection & Drone technology & \\ Positive attitude & Images & Photogrammetry \\ Neutral attitude & Vision cameras & \\ \hline Safety training & & \\ Safety rules & Exact location & \\ Accident prevention & Tracking & GPS, RFID \\ Danger & Record information & \\ Positive attitude & & \\ \hline Human error & & \\ Safety consciousness & Capturing & \\ Safety knowledge & Monitoring & Laser scanning approach \\ Positive attitude & & \\ Negative attitude & & \\ \hline Safety performance improvement & & \\ Time saving & Digital modeling & \\ Less effort & Computer vision-based & Simulation \\ Visualization & methods & \\ Positive attitude & & \\ Neutral attitude & & \\ \hline \hline \end{tabular}
\end{table}
Table 4: Coding theme.  
workers to communicate with one another by connecting smart devices over a short distance. Accidents can occur during the construction of high-rise buildings but employing BLE devices to communicate efficiently reduced the danger of such events to a bare minimum. Furthermore, simulation can be used to create escape routes, arrange fire safety equipment maintenance, model safe worker behavior, and develop safety measures. The creation of an algorithm for automatic BIM-enabled fall hazard assessment and planning, as well as the development of an algorithm for BIM-enabled simulation of the safe construction of high-rise buildings, is a practical application of simulation.  
Furthermore, computer vision-based methods are the most appropriate solution for identifying safety problems and enhancing safety performances. Responses included 'I think using BIM alone cannot mitigate the accidents in high-rise buildings' and 'I think to use BIM with other digital technologies can make it possible'. When the interviewer asked him 'How is it?', participants provided responses, such as 'through simulation and algorithm approach would be useful' and 'developing BIM-Based frameworks'.  
However, some interviewees claimed that it is difficult to detect falls from roofs/ floors with the BIM integration techniques. They strongly stressed that during the pre-construction phase, the BIM integration techniques were useful for efficient construction, but during the construction phase, it was difficult, so their attitude towards BIM integration with simulation techniques was neutral. Moreover, they believed that modular construction is a much safer and smooth way of construction. They provide strong logic to support their  
Figure 2: Coding scheme.  
claim that in on-site construction, more construction workers are needed and there is a high chance of accidents and injuries during construction as compared to modular construction.