To mitigate the occurrence of traffic accidents, addressing the human factors pertinent to road safety, particularly driver operational errors, is essential. Drivers in urban environments can benefit from readiness evaluations and feedback, which help mitigate errors, promote safer driving speeds, and enhance situational awareness. This study aimed to develop and validate a driver behavior assessment system centered around the concept of stepwise driver readiness. The system is designed to evaluate driver behavior and provide progressive feedback to improve performance. We extrapolated the original concept of driver readiness to create a stepwise readiness evaluation system, which was implemented and tested on urban roads to evaluate its effectiveness. The results demonstrate that the system effectively evaluates readiness, and the stepwise feedback mechanism significantly enhances driver performance. Notably, the success of the feedback process was influenced by the level of driver acceptance. These results highlight the importance of the expanded driver readiness concept in managing human factor-related driving risks and improving road safety.

An all-weather automated construction system has been developed to reduce the total cost of high-rise reinforced concrete building construction. It was applied for the first time in the world to the construction of a 26-story reinforced concrete condominium project in Chiba Prefecture in 1995. This system incorporates four major elements: 1) a synchronously climbing all-weather temporary roof; 2) a parallel material delivery system; 3) prefabrication and unification of construction materials; and 4) a material management system. It ensures good quality; improves the working and environmental conditions; reduces the construction period, manpower and waste; and improves overall productivity.