## 5 Future Perspectives
### Advance Technologies for Safety Enhancement  
Tables 4 and 5 results indicated the majority of fatal accidents occurred because of fall of person from height or slip, trip or fall on the same level. The adoption of advanced technologies could reduce the occurrence of the accident in the construction industry. The adaptation of advanced technologies such as sensor-based technologies, robotics, and automation could also enhance safety in the construction industry [43; 44]. These advanced technologies could promote safety and reduce fatal accidents in Hong Kong construction industry. Sensor-based technologies are very useful in collecting location data of an object with greater improvement in performance which can serve as a strong pillar for the modern safety construction management [45; 46; 47; 48]. Sensor-based technologies include the location-based sensor, vision-based sensors, and wireless sensors, etc. [49; 50]. The intelligence of the sensor-based technologies (Global positioning system (GPS), Radio frequency identification (RFID), Ultra-wideband (UWB)) helps interactive platform which can significantly improve the construction worker's safety at the site [51]. The construction of the taller building is common in Hong Kong construction industry, therefore it is necessary to develop an effective and precise framework network of the sensor-based technologies shows in Figure 3. This indicate show sensor technologies could effectively apply at the construction site. Moreover, it also indicates that the sensor can easily locate the hazard location, types and time and gives information in the main office. The officer can easily find the hazard information and report to the site to overcome these issues to avoid accidents at the construction site [52; 53; 54]. These technologies will help to identify hazards and provide useful information to overcome it at the construction sites which result in decreasing fatal accidents in the construction industries. On the other hand, to reduce accidents related fall of person from height or struck by moving or stationary objects, the adaptation of robotics is an effective safety strategy that is being used recently, Therefore, in Hong Kong construction industry, the robotics in the construction industry could play an important role. Recent studies [55; 56; 57; 58] indicated that the robotic can do a number of different forms of work in the construction industry including excavation, demolition buildings, tunnel inspection and constructing walls, etc. as shown in Figure 4. Therefore, to reduce fall-related accidents, robotics could apply in most dangerous places so that we can reduce the fatalities in the construction industry around the world. However, this is a challenging task and requires huge effort to enhance human-robotics interaction [59]. In addition, there is huge research work is required to the adaptation of robotics in the construction industry in the near future. Lastly, for the development of new innovative SMS for the Hong Kong construction industry, there is a high need for an effective communication system between the workers at the site. Lack of information and communications between the construction workers was found to be the main reasons for accidents at the site [60; 61; 62; 63]. This causes a huge risk for the worker's life at the site. A study of [PERSON] [64] indicated that an effective information management system could reduce accidents at the construction site. Through the use of building information modeling (BIM) at the construction site, the danger zones could be identified and marked for safety at the construction site. Moreover, a study of [PERSON] [65] proved that the adaptation of BIM in maintenance works could enhance safety at the workplace. The inclusion of effective information management for worker's communication is necessary and it will not only help effective communication but also enhance the safety in the construction industry. Figure 3: The framework of the sensor based technology at the construction site (authors’ illustration).