Work-related accidents typically result from unsafe behaviors of the workers. In many countries, the agenda of workers’ safety follows the Behaviour-Based Safety (BBS) Approach, which emphasizes on promoting safety awareness through the observation, evaluation, intervention, and improvement of workers’ behavior. Following the BBS Approach, this study develops an Application (APP) for handheld devices that enables construction-firm managers to observe workers’ behavior on-site. This APP records and analyzes back-end data to generate a distribution chart of workers’ behavior. The statistical results obtained from the APP can serve as a reference for managers in implementing safety strategies. In addition, on the basis of subsequent observation results, managers could also determine the safety behavior performance of workers obtained after the implementation of the aforementioned safety strategies.

The results indicated that the performance of unsafe behaviors of workers had a significant relationship with the management capacity of construction firms. 70% of unsafe behaviors of workers were resulted from a poor work environment, whereas 85% of unsafe behaviors were responsible for personal work habits. Furthermore, there are internal and external factors contributing to the performance of unsafe behaviors of workers: (1) External factors such as time limits and low-priced contracts impel workers to choose convenient, efficient, but at-risk practices at work (e.g., climbing, straddling, or sitting on uneven surfaces and at heights); and (2) the internal factors are related to alcohol consumption at work, wearing unbuckled helmets, and carelessness over hazardous conditions in the work environment, such as struck by, punctures, and electric shocks.

Currently, BBS has been highlighted by the international society in promoting safety management. This study Applied BBS to develop an APP that operated on a handheld device at the front end and analyzed worker behavior statistics at the back end to yield data for the implementation of safety management strategies. In addition, to maximize the Application value of this BBS-based APP safety module, future application of this module in the construction industry and related labor unions can be combined with the knowledge platforms that share occupational accident-related safety information in the industry.